Photonics Letters of Poland最新文献

{"title":"Microcrystalline diamond film evaluation by spectroscopic optical coherence tomography","authors":"P. Strąkowska, M. Strąkowski","doi":"10.4302/plp.v14i3.1156","DOIUrl":"https://doi.org/10.4302/plp.v14i3.1156","url":null,"abstract":"This study has focused on the microcrystalline diamond film (MCD) thickness evaluation. For this purpose, optical coherence tomography (OCT) enhanced by spectroscopic analysis has been used as a method of choice. The average thickness of the tested layer was about 1.5 µm, which is below the standard 2-point OCT resolution. In this case, the usefulness of the spectroscopic analysis was confirmed for the evaluation of the thickness changes in the submicrometer range. Full Text: PDF ReferencesM.D. Drory, J.W. Hutchinson, \"Diamond Coating of Titanium Alloys\", Science, 263 (1994). CrossRef J. Wang, J. Zhou, H.Y. Long, Y.N. Xie, X.W. Zhang, H. Luo, Z.J. Deng, Q. Wei, Z.M. Yu, J. Zhang, Z.G. Tang, \"Tribological, anti-corrosive properties and biocompatibility of the micro- and nano-crystalline diamond coated Ti6Al4V\", Surf. Coat. Technol., 258 (2014). CrossRef P.A. Nistor, P.W. May, F. Tamagnini, A.D. Randall, M.A. Caldwell, \"Long-term culture of pluripotent stem-cell-derived human neurons on diamond – A substrate for neurodegeneration research and therapy\", Biomaterials, 61 (2015). CrossRef C.A. Love, R.B. Cook, T.J. Harvey, P.A. Dearnley, R.J.K. Wood, \"Diamond like carbon coatings for potential application in biological implants—a review\", Tribol. Int., 63 (2013). CrossRef P. Strąkowska, R. Beutner, M. Gnyba, A. Zielinski, D. Scharnweber, \"Electrochemically assisted deposition of hydroxyapatite on Ti6Al4V substrates covered by CVD diamond films — Coating characterization and first cell biological results\", Materials Science and Engineering: C, 59 (2016). CrossRef T.S. Ho, P. Yeh, C.C. Tsai, K.Y. Hsu, S.L. Huang., \"Spectroscopic measurement of absorptive thin films by Spectral-Domain Optical Coherence Tomography\", Opt. Express 22, 5 (2014). CrossRef N. Bosschaart, T.G. van Leeuwen, M.C.G. Aalders, D.J. Faber, \"Quantitative comparison of analysis methods for spectroscopic optical coherence tomography\", Biomedical Opt. Express 4, 11 (2013). CrossRef F.E Robles, C. Wilson, G. Grant, A. Wax, \"Molecular imaging true-colour spectroscopic optical coherence tomography\", Nat. Photonics 5, 12 (2011). CrossRef A.F. Fercher, W. Drexler, C.K. Hitzenberger, T. Lasser, \"Optical coherence tomography - principles and applications\", Rep. Prog. Phys. 66, 239 (2003). CrossRef A.M. Kamińska, M.R. Strąkowski, J. Pluciński, \"Spectroscopic Optical Coherence Tomography for Thin Layer and Foil Measurements\", Sensors 20, 19, (2020). CrossRef M. Kraszewski, M. Strąkowski, J. Pluciński, B.B. Kosmowski, \"Spectral measurement of birefringence using particle swarm optimization analysis\", Appl. Opt. 54, 1 (2015). CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42148351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling of 3D solar module based on flexible photovoltaic panels","authors":"M. Mazur, M. Józwik, K. Malowany, Łukasz Szeląg","doi":"10.4302/plp.v14i2.1139","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1139","url":null,"abstract":"This paper presents a new concept of a photovoltaic module. The increase in efficiency is obtained by using a three-dimensional form of flexible photovoltaic panels with an additional reflecting mirror. A flexible panel is distributed over the entire inner surface of the cylinder, while the mirror distributes the flux on its surface. The comparison of selected solutions for a mirror shape is realized with numerical simulations. The irradiance results for absorbed flux are discussed on the ground of possible improvements. Full Text: PDF ReferencesM.Y. Levy, \"Maturity of Photovoltaic Solar-Energy Conversion\" (InTech 2011). CrossRef L. M. Fraas, L.D. Partain, \"Solar Cells and Their Applications\" (Wiley 2010). CrossRef X. Li, P. Li, Z. Wu, D. Luo, H-Y. Yu, Z-H. Lu, \"Review and perspective of materials for flexible solar cells\", Materials Reports: Energy, 1 (2021). CrossRef N. Gakkhar, M.K. Soni, and S. Jakhar, \"Experimental and Theoretical Analysis of Hybrid Concentrated Photovoltaic/thermal System Using Parabolic Trough Collector\", Appl. Therm. Eng. 171, 115069 (2020). CrossRef V. Kumar, R.L. Shrivastava, S.P. Untawale, Fresnel lens: \"A promising alternative of reflectors in concentrated solar power\", Renew. Sust. Energ. Rev. 44 (2015). CrossRef https://lambdares.com/tracepro/ DirectLink","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41604446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical analysis of the broadband interferometric sensor in the planar gradient-step index configuration","authors":"M. Błahut","doi":"10.4302/plp.v14i2.1140","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1140","url":null,"abstract":"In the paper the model of an optical sensor based on a two-mode interference in a planar gradient-step index configuration is presented. The analyzed structure consists of a single-mode gradient index waveguide, made by Ag+-Na+ ion exchange, which is partially covered by a step-index SU-8 polymer layer. This step and gradient index structure forms a two-mode waveguide which is excited by a broadband light source from a selected spectral range. The refractive index variation of measured external surrounding affects the modal properties of multimode waveguide and the spectral field distribution at the output of the structure. Full Text: PDF ReferencesM. Błahut, \"Numerical analysis of planar multimode optical sensor with active nanolayer\", Opt. Appl. 50, 377 (2020). CrossRef M. Nordstrom et al J. Light. Technol. 25, 1284 (2007). CrossRef K. Gut, \"Study of a Broadband Difference Interferometer Based on Low-Cost Polymer Slab Waveguides\", Nanomaterials, 9, 729 (2019). CrossRef M. Błahut, \"Numerical characteristics of the polarimetric interferometer made by K+-Na+ ion exchange\", Opt. Appl. 27, 3 (1998). CrossRef https://www.filmetrics.com/refractive-index-database/BK7/Float-Glass DirectLink M. Błahut, \"Model of the broadband interferometric optical biosensor in a planar configuration\", Phot. Lett. Pol. 12, 28 (2020). CrossRef K. Gut, \"Broad-band difference interferometer as a refractive index sensor\", Opt. Express, 25, 31111 (2017). CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41770631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of temperature change on refractive index of an egg white and yolk: a preliminary study","authors":"P. Sokołowski","doi":"10.4302/plp.v14i2.1138","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1138","url":null,"abstract":"In this article, the refractive index of an egg white and yolk depending on temperature in range 30 - 47 °C over 1550 nm was determined. The measurement head was constructed as fiber optic Fabry-Perot interferometer with interference between polished fiber end-face and aluminum weighing dish. The measurement setup has been made of an optical spectrum analyzer, a superluminescent diode with a central wevelength of 1550 nm, 2:1 fiber coupler and heat plate. Full Text: PDF ReferencesP. Magdelaine, \"Egg and egg product production and consumption in Europe and the rest of the world, Improving the Safety and Quality of Eggs and Egg Products\", Egg Chemistry, Production and Consumption, 3 (2011). CrossRef H. Kuang, F. Yang, Y. Zhang, T. Wang, and G. Chen, \"The Impact of Egg Nutrient Composition and Its Consumption on Cholesterol Homeostasis\", Cholesterol (2018). CrossRef J. Gienger, K. Smuda, R. Müller, M. Bär, and J. Neukammer, \"Refractive index of human red blood cells between 290 nm and 1100 nm determined by optical extinction measurements\", Sci. Rep. 9, 1 (2019). CrossRef P. Listewnik, M. Hirsch, P. Struk, M. Weber, M. Bechelany, and M. Jędrzejewska-Szczerska, \"Preparation and Characterization of Microsphere ZnO ALD Coating Dedicated for the Fiber-Optic Refractive Index Sensor\", Nanomaterials 9, 2 (2019) CrossRef Y. Wu, Y. Zhang, J. Wu, and P. Yuan, \"Fiber-Optic Hybrid Structured Fabry-Perot Interferometer Based On Large Lateral Offset Splicing for Simultaneous Measurement of Strain and Temperature\", J. Lightwave Technol., 35, 19 (2017). CrossRef M. Islam, M. Mahmood, M Lai, K. Lim, and H. Ahmad, \"Chronology of Fabry-Perot Interferometer Fiber-Optic Sensors and Their Applications: A Review\", Sensors 14, 4 (2014). CrossRef K. Karpienko, M. Wróbel, and M. Jędrzejewska-Szczerska, \"Determination of refractive index dispersion using fiber-optic low coherence Fabry-Perot interferometer: implementation and validation\", Opt. Eng. 53, 7 (2014). CrossRef M. Kosowska, D. Majchrowicz, K. Sankaran, M. Ficek, K. Haenen, and M. Szczerska, \"Doped Nanocrystalline Diamond Films as Reflective Layers for Fiber-Optic Sensors of Refractive Index of Liquids\", Materials 12, 13 (2019). CrossRef G. Xiao, A. Adnet, Z. Zhang, F. Sun, and C. Grover, \"Monitoring changes in the refractive index of gases by means of a fiber optic Fabry-Perot interferometer sensor\", Sensors and Actuators 118, 2 (2005). CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45298508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optoelectronic system for detecting short-circuits in low voltage networks","authors":"K. Barczak, J. Juraszek","doi":"10.4302/plp.v14i2.1158","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1158","url":null,"abstract":"The paper presents the concept of using a fiber-optic current sensor with external conversion (OFCS-EC) in a power system. The sensor was developed in the Department of Optoelectronics and was tested in a laboratory. The focus was on the use of OFCS-EC in a real low voltage network. The main purpose of the presented measurement system will be to record network disturbance states with high accuracy. The experiment is to answer the question whether the recorded current waveforms in fault states and the measurement transmission speed will be useful enough to be able to predict, identify and, consequently, prevent losses and damage to devices caused by disturbances in low voltage networks. Full Text: PDF ReferencesS. Ziegler, R.C. Woodward, H.H.C. Iu, L.J. Borle, \"Current Sensing Techniques: A Review\", IEEE Sens. J. 9, 354 (2009). CrossRef R.M. Silva, H. Martins, I. Nascimento, J.M. Baptista, A.L. Ribeiro, J.L. Santos, P. Jorge, O. Frazão, \"Optical Current Sensors for High Power Systems: A Review\", Appl. Sci. 2, 602 (2012). CrossRef K. Barczak, K. Mazniewski, \"Optical fiber current sensor with external conversion for measurements of low AC electric currents\", Proc. SPIE, 10455 (2017). CrossRef K. Barczak, T. Pustelny, D. Dorosz, J. Dorosz, \"Polarization maintaining fibers for application in magnetic field measurements\", Eur. Phys. J.: Spec Top. 154, 11 (2008). CrossRef K. Barczak, T. Pustelny, D. Dorosz, J. Dorosz, \"New Optical Glasses with High Refractive Indices for Applications in Optical Current Sensors\", Acta Phys. Pol. A, 116, 247 (2009). CrossRef K. Barczak, \"Optical fiber current sensor with external conversion\", Proc. SPIE, 10034 (2016). CrossRef K. Barczak, D. Duda, K. Mazniewski, \"Optical fiber current sensor with external conversion in high voltage environment\", Proc. SPIE, 10830 (2018). CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41673078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of optical reflectometer for monitoring corrosion process","authors":"M. Kochanowicz, J. Markiewicz","doi":"10.4302/plp.v14i2.1144","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1144","url":null,"abstract":"In this work, a corrosion sensor based on an optical time domain reflectometer was presented. The first sensor with a bare tip was used to measure the corrosion process of silica glass fiber. Another sensor with a deposited silver layer was used for monitoring the corrosion process in nitric acid. In both cases, reflectance at the end of the fiber was decreasing with immersion time. Thus we can describe the corrosion stage by the level of fresnel reflectance. The maximum sensitivities of the analyzed sensors were as follows: 0.7dB/min (3% HF solution) 0.15dB/h (5%HNO3 solution) Results showed that the corrosion process in all cases wasn’t fully linear, and all reactions began almost instantly after immersing sensors in tested corrosive environments. Full Text: PDF ReferencesC. Elosua, F.J. Arregui et al., \"Micro and Nanostructured Materials for the Development of Optical Fibre Sensors\", Sensors, 17, 2312 (2017). CrossRef B.H. Lee, Y.H. Kim et al., \"Interferometric Fiber Optic Sensors\", Sensors, 12, 2467 (2012). CrossRef X. Wang, O.S. Wolfbeis, \"Fiber-Optic Chemical Sensors and Biosensors\" (2013-2015), Analytical Chemistry, 88, 203 (2016). CrossRef M.A. Butler, \"Fiber Optic Sensor for Hydrogen Concentrations near the Explosive Limit\", J. Electrochem. Soc., 138, 46 (1991). CrossRef M.A. Butler, \"Optical Fiber hydrogen sensor\", Appl. Phys. Lett. 45, 1007 (1984). CrossRef S.F. Silva, L. Coelho et al., \"A Reviev of Palladium-Based Fiber-Optic Sensors for Molecular Hydrogen Detection\", IEEE Sens. J., 12, 93 (2012). CrossRef C. Floridia, F.C. Salgado et al., \"Methane leak detection and spectral analysis by using only optical time domain reflectrometry in semidistributed remote optical sensors\", IEEE Sens., 2016. CrossRef J.F. Martins-Filho, E. Fontana et al., Fiber-optic-based Corrosion Sensor using OTDR, IEEE SENSORS 2007 Conference (2007). CrossRef E.A. Lima, A.C. Bruno, \"Improving the detection of Flaws in Steel Pipes Using SQUID Planar Gradiometers\", IEEE Trans. Appl. Supercond. 11, 1299 (2001). CrossRef J. Yin, J. Pineda de Gyvez et al., \"Real-Time Full Signature Corrosion Detection of Underground Casing Pipes\", IEEE Instrumentation and Measurement Technology Conference (1996). CrossRef H. Park, D. Kim et al., \"HF etched glass substrated for improved thin-film solar cells\", Heliyon, 4, 10, (2018). CrossRef M. Mozammel, \"Kinetics of Silver Dissolution in Nitric Acid from Ag-Au0:04-Cu0:10 and Ag-Cu0:23 Scraps\", J. Mater. Sci. Technol., 22, 696 (2006). DirectLink","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48360238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HYPHa project: a low-cost alternative for integrated photonics","authors":"M. A. Butt, A. Kaźmierczak, C. Tyszkiewicz, P. Karasiński, Edyta Środa, J. Olszewski, P. Pala, T. Martynkien, D. Hlushchenko, T. Baraniecki, A. Bachmatiuk, A. Jusza, M. Guzik, R. Piramidowicz","doi":"10.4302/plp.v14i2.1145","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1145","url":null,"abstract":"In this paper, a brief introduction to the Hybrid sensor platforms of integrated photonic systems based on ceramic and polymer materials (HYPHa) is presented. The project's goal is to establish a collaborative effort of institutes specialized in integrated optics. The newly formed group of professionals will be founded on research groups' experience, collaboration, and devotion. We intend to develop a method for combining competencies and a universal material platform for integrated photonics, based on newly validated hybrid materials as part of the project. Silica compounds with additions including TiO2, SnO2, used as structural matrices, polymer coatings with dopants (active or protective layers), organic dyes, and active two-dimensional materials such as transition metal dichalcogenides, graphene hybrids, and boron nitride will be the foundation for these materials. Full Text: PDF ReferencesK. Rola, A. Zajac, M. Czajkowski, A. Szpecht, M. Zdonczyk, M. Smiglak, J. Cybinska, K. Komorowska, \"Ionic liquids for active photonics components fabrication\", Opt. Mater. 89, 106-111 (2019). CrossRef D. Kowal, K. Rola, J. Cybinska, M. Skorenski, A. Zajac, A. Szpecht, M. Smiglak, S. Drobczynski, K. Ciesiolkiewicz, K. Komorowska, \"Fluorescent ionic liquid micro reservoirs fabricated by dual-step E-beam patterning\", Mater. Res. Bull. 142, 111434 (2021). CrossRef T. Martynkien, J. Olszewski, M. Szpulak, G. Golojuch, W. Urbanczyk, T. Nasilowski, F. Berghmans, and H. Thienpont, \"Experimental investigations of bending loss oscillations in large mode area photonic crystal fibers\", Opt. Express 15, 13547-13556 (2007). CrossRef E. Środa, J. Olszewski, and W. Urbańczyk, \"Reducing bend-induced loss and crosstalk in a two-mode ridge waveguide by steplike thickness structuring\", Appl. Opt. 61, 1164-1170 (2022). CrossRef P. Karasinski, C. Tyszkiewicz, A. Domanowska, A. Michalewicz, J. Mazur, \"Low loss, long time stable sol–gel derived silica–titania waveguide films\", Mater. Lett. 143, 5-7 (2015). CrossRef P. Karasinski, C. Tyszkiewicz, A. Maciaga, I.V. Kityk, E. Gondek, \"Two-component waveguide SiO2:TiO2 films fabricated by sol–gel technology for optoelectronic applications\", J. of Mater. Sci.: Mater. Electron. 26, 2733-2736 (2015). CrossRef M.A. Butt, A. Kazmierczak, C. Tyszkiewicz, P. Karasinski, R. Piramidowicz, \"Mode Sensitivity Exploration of Silica–Titania Waveguide for Refractive Index Sensing Applications\", Sensors 21, 7452 (2021). CrossRef A. Kazmierczak, M. Slowikowski, K. Pavlov, M. Filipiak, M. Vervaeke, C. Tyszkiewicz, H. Ottevaere, R. Piramidowicz, P. Karasinski, \"Efficient, low-cost optical coupling mechanism for TiO2-SiO2 sol-gel derived slab waveguide surface grating coupler sensors\", Opt. Appl. 50, 539 (2020). CrossRef M.A. Butt, S.N. Khonina, N.L. Kazanskiy, \"A highly sensitive design of subwavelength grating double-slot waveguide microring resonator\", Laser Phys. Lett. 17, 076201 (2020). CrossRef N.L. Kazanskiy, M.A. Butt, S.N. Khonina, \"Silicon photo","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46178305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field-of-view correction in a VR HMD display with varifocal optics","authors":"M. Piszczek, Kacper Suchecki, A. Kucharczyk, M. Pomianek, M. Maciejewski, L. Jodłowski, Piotr Krukowski","doi":"10.4302/plp.v14i2.1148","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1148","url":null,"abstract":"Nowadays, we observe a progressive increase amount of virtual technologies application. VR devices, i.e. HMDs, are still struggling with the VAC. It is possible to “implement” the accommodation mechanism in HMDs using a varifocal system. By using focus tuneable lenses, we achieve high speed and smoothness of displacement of the virtual image plane. This solution involves also unfavourable changes of geometrical parameters of the projected image i.e. change in magnification. This can be solved by software modification parameters of the virtual camera. In this paper, the developed construction of varifocal HMD is presented, including the method of maintaining the constancy magnification. Full Text: PDF ReferencesY-J. Wang , Y-H. Lin, \"Liquid crystal technology for vergenceaccommodation conflicts in augmented reality and virtual reality systems: a review\", Liq. Cryst. Rev. 9. 35 (2021). CrossRef P.P. Monticone, M. Menozzi, M. Schlup, \"Instrument for high-speed recording of accommodation of the human eye\", Biomed. Tech. 55: 83 (2010). CrossRef G. Kramida, \"Resolving the vergence-accommodation confict in headmounted displays\", IEEE Trans. Vis. Comput. Graph. 22, 1912 (2016). CrossRef S. Shiwa, K. Omura, and F. Kishino, \"Proposal for a 3-D display with accommodative compensation: 3DDAC,\" J. Soc. Inf. Disp. 4, 255 (1996). CrossRef K. Rathinavel, G. Wetzstein, H. Fuchs, \"Varifocal Occlusion-Capable Optical See-through Augmented Reality Display based on Focus-tunable Optics,\" IEEE Trans. Vis. Comput. Graph. 25, 3125 (2019). CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43567864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum efficiency of europium doped LaPO4 phosphors for UV sensing applications","authors":"K. Sadowska, Paweł Awramiuk, I. Zgłobicka, K. Rećko, J. Zmojda","doi":"10.4302/plp.v14i2.1146","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1146","url":null,"abstract":"The radiation conversion phenomenon is used for UV sensing applications with rare earth doped phosphors. This paper presents the results of structural and optical measurements of undoped and europium doped LaPO4 phosphors. LaPO4 phosphors with 1% mol, 2% mol, and 5% mol of europium were fabricated by the co-precipitation method. The effect of Eu3+ concentrations on the luminescence characteristics under UV LED excitation was investigated. The maximum quantum efficiency of luminescence (c.a. 82%) was obtained in sampled doped with 5% of europium. Full Text: PDF ReferencesM. Runowski, \"Nanotechnologia – nanomateriały, nanocząstki i wielofunkcyjne nanostruktury typu rdzeń/powłoka\", Chemik 68, 9, 766-775 (2014). DirectLink J. Zhou, J.L. Leano Jr., Z. Liu, D. Jin, K.-L. Wong, R.S. Liu, et al., \"Impact of Lanthanide Nanomaterials on Photonic Devices and Smart Applications\", Small 14, 1801882 (2018). CrossRef Z. Li, Y. Zhang, G. Han, \"Lanthanide-Doped Upconversion Nanoparticles for Imaging-Guided Drug Delivery and Therapy\", Springer Series in Biomater. Sci. Eng. 6, 139-164, (2016). CrossRef M. Lin, Y. Zhao, S. Wang, M. Liu, Z. Duan, Y. Chen, et al., \"Recent advances in synthesis and surface modification of lanthanide-doped upconversion nanoparticles for biomedical applications\", Biotechnol. Adv. 30, 1551-1561 (2012). CrossRef H. Su, Y. Nie, H. Yang, D. Tang, K. Chen, T. Zhang, \"Improving the thermal stability of phosphor in a white light-emitting diode (LED) by glass-ceramics: Effect of Al2O3 dopant\", J. Eur. Ceram. Soc. 38, 2005-2009 (2018). CrossRef J. Huang, X. Hu, J. Shen, D. Wu, C. Yin, R. Xiang, et al., \"Facile synthesis of a thermally stable Ce3+:Y3Al5O12 phosphor-in-glass for white LEDs\", Cryst. Eng. Comm 17, 7079-7085 (2015). CrossRef R. Zhang, H. Lin, Y. Yu, D. Chen, J. Xu, Y. Wang, \"A new-generation color converter for high-power white LED: transparent Ce3+:YAG phosphor-in-glass\", Laser Photon. Rev. 8, 158-164 (2014). CrossRef B. Zheng, Y. Bai, H. Chen, H. Pan, W. Ji, X. Gong, et al., \"Near-Infrared Light-Excited Upconverting Persistent Nanophosphors in Vivo for Imaging-Guided Cell Therapy\", ACS Appl. Mater. Interfaces 10, 19514 (2018). CrossRef J. Qiao, G. Zhou, Y. Zhou, Q. Zhang, Z. Xia, \"Divalent europium-doped near-infrared-emitting phosphor for light-emitting diodes\", Nature Communications 10 (1), 5267 (2019). CrossRef V. Singh, A. Kumar, C. Mehare, H. Jeong, S. Dhoble, \"UV/VUV excited photoluminescence of Tb3+ doped LaPO4 green emitting phosphors for PDP applications\", Optik 206, 163733 (2020). CrossRef G. Han, Y. Wang, C. Wu, J. Zhang, \"Hydrothermal synthesis and vacuum ultraviolet-excited luminescence properties of novel Dy3+-doped LaPO4 white light phosphors\", Mat. Res. Bull. 44 (12), 2255-2257 (2009). CrossRef K. S. Gupta, P. S. Ghosh, M. Sahu, K. Bhattacharyya, R. Tewari, V. Natarajan, \"Intense red emitting monoclinic LaPO4:Eu3+ nanoparticles: host–dopant energy transfer dynamics and photoluminescence properties\", RSC Adv. 5, 58832","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49037396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of the type of graphite on the size of reduced graphene oxide","authors":"S. Drewniak, Ł. Drewniak","doi":"10.4302/plp.v14i2.1153","DOIUrl":"https://doi.org/10.4302/plp.v14i2.1153","url":null,"abstract":"Reduced graphene oxide is a very attractive material for sensor applications. It exhibits high conductivity at room temperature and high specific surface area. Since it can be produced in many ways, its properties can be influenced by the fabrication method. In this paper, we investigated the influence of graphite precursors (flake, scalar and synthetic) on the size of reduced graphene oxide. We have shown that the size of the precursor determines the size of the obtained rGO. We have noted that the larger graphite size, the larger rGO size. Full Text: PDF ReferencesR. Peng, Y. Li, T. Liu et al., \"Reduced graphene oxide/SnO2@Au heterostructure for enhanced ammonia gas sensing\", Chem. Phys. Lett., 737, 136829 (2019). CrossRef S. Pei and H. M. Cheng, \"The reduction of graphene oxide\", Carbon N. Y., 50, 9 (2012). CrossRef N. Sharma, V. Sharma, R. Vyas et al., \"A new sustainable green protocol for production of reduced graphene oxide and its gas sensing properties\", J. Sci. Adv. Mater. Devices, 4, 3 (2019) CrossRef R. Tarcan, O. Todor-Boer, I. Petrovai, C. Leordean, S. Astilean, I. Botiz, \"Reduced graphene oxide today\", J. Mater. Chem. C, 8, 4 (2020). CrossRef X. Jiao, Y. Qiu, L. Zhang, and X. Zhang, \"Comparison of the characteristic properties of reduced graphene oxides synthesized from natural graphites with different graphitization degrees\", RSC Adv., 7, 82 (2017). CrossRef J.A. Quezada-Renteria, C.O. Ania, L.F. Chazaro-Ruiz, J.R. Rangel-Mendez, \"Influence of protons on reduction degree and defect formation in electrochemically reduced graphene oxide\", Carbon N. Y., 149 (2019). CrossRef H. Gao, Y. Ma, P. Song, J. Leng, Q. Wang, \"Characterization and cytocompatibility of 3D porous biomimetic scaffold derived from rabbit nucleus pulposus tissue in vitro\", J. Mater. Sci. Mater. Electron., 32, 8 (2021). CrossRef A.T. Lawal, \"Graphene-based nano composites and their applications. A review\", Biosens. Bioelectron., 141, 111384, (2019). CrossRef E. Aliyev, V. Filiz, M.M. Khan, Y.J. Lee, C. Abetz, V. Abetz, \"Structural Characterization of Graphene Oxide: Surface Functional Groups and Fractionated Oxidative Debris\", Nanomaterials, 9, 8 (2019). CrossRef S. Sali, H.R. Mackey, A.A. Abdala, \"Effect of Graphene Oxide Synthesis Method on Properties and Performance of Polysulfone-Graphene Oxide Mixed Matrix Membranes\", Nanomaterials, 9, 5 (2019). CrossRef G. Lu, L.E. Ocola, J. Chen, \"Reduced graphene oxide for room-temperature gas sensors\", Nanotechnology, 20, 44 (2009). CrossRef C. Botas, P. Alvarez, C. Blanco et al., \"Critical temperatures in the synthesis of graphene-like materials by thermal exfoliation–reduction of graphite oxide\", Carbon N. Y., 52, 2013. CrossRef","PeriodicalId":20055,"journal":{"name":"Photonics Letters of Poland","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45569287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}