Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327929
P. Gu, L. M. Zhao, C. Wan, L. Zhang, L. Kang, P. Wu
A new photon-number-resolving superconducting single photon detector is fabricated and tested. To integrate the resistors connected to the nanowire, we used one step of electron-beam lithography and four subsequent photolithography steps. A micro cavity was introduced to the structure in order to gain relatively high quantum efficiency. The device fabricated could resolve 6 photons.
{"title":"Multi-photon response of photon-number-resolving superconducting single photon detector","authors":"P. Gu, L. M. Zhao, C. Wan, L. Zhang, L. Kang, P. Wu","doi":"10.1109/IRMMW-THZ.2015.7327929","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327929","url":null,"abstract":"A new photon-number-resolving superconducting single photon detector is fabricated and tested. To integrate the resistors connected to the nanowire, we used one step of electron-beam lithography and four subsequent photolithography steps. A micro cavity was introduced to the structure in order to gain relatively high quantum efficiency. The device fabricated could resolve 6 photons.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"1 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90430551","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327623
Y. Shen
Early struggles in the development of THz spectroscopy are reviewed. The field, covering an important spectral region for material characterization, suffered badly from poor lightsources and detectors in the old days, but blossomed rapidly after the arrival of femtosecond lasers. It provides another example how advances of laser technology revolutionize a field.
{"title":"Reflections on the early days of THz spectroscopy","authors":"Y. Shen","doi":"10.1109/IRMMW-THZ.2015.7327623","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327623","url":null,"abstract":"Early struggles in the development of THz spectroscopy are reviewed. The field, covering an important spectral region for material characterization, suffered badly from poor lightsources and detectors in the old days, but blossomed rapidly after the arrival of femtosecond lasers. It provides another example how advances of laser technology revolutionize a field.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"141 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73504456","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327681
D. Corcos, N. Kaminski, D. Elad, T. Morf, Winnie Tatiana Silatsa Saha, U. Drechsler, L. Kull, A. Bischof, Y. Zha
A 19×8 pixel array with a read-out integrated circuit was designed and fabricated in a micro-machined SOI-CMOS process. The pixels are antenna-coupled MOSFET bolometers operating at room temperature in a wide 0.6-1.2 THz band. The read-out circuit features column multiplexed differential amplifiers, offset calibration capability and chopper stabilization. We present the performance of the read-out circuit building blocks, as well as characterization results of the pixels, which demonstrate good detection sensitivity.
{"title":"A 0.6–1.2 THz monolithic imaging array","authors":"D. Corcos, N. Kaminski, D. Elad, T. Morf, Winnie Tatiana Silatsa Saha, U. Drechsler, L. Kull, A. Bischof, Y. Zha","doi":"10.1109/IRMMW-THZ.2015.7327681","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327681","url":null,"abstract":"A 19×8 pixel array with a read-out integrated circuit was designed and fabricated in a micro-machined SOI-CMOS process. The pixels are antenna-coupled MOSFET bolometers operating at room temperature in a wide 0.6-1.2 THz band. The read-out circuit features column multiplexed differential amplifiers, offset calibration capability and chopper stabilization. We present the performance of the read-out circuit building blocks, as well as characterization results of the pixels, which demonstrate good detection sensitivity.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"50 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73569480","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327792
Borwen You, Wen-jie Cheng, Ja-Yu Lu, T. Liu, T. Hattori
Metal rod array (MRA) are presented as the microstructured cladding of a rectangle channel waveguide to guide terahertz (THz) waves. The microstructure cladding is critical to modify the waveguide loss, dispersion, resonance, and pass-band. THz-field resonance and the corresponding modal field are taken as examples to express that the MRA period can be tailored for engineering the waveguide. MRA is agreed as a plasmonic metalmaterial, possessing spoof plasma frequency and dependent on the MRA geometry. The case of THz-field resonance inside the waveguide channel is significant to mimic “plasmonic resonance” in THz region that does not appear in natural metals.
{"title":"Terahertz plasmonic waveguides based on a microstructure of metal rod array","authors":"Borwen You, Wen-jie Cheng, Ja-Yu Lu, T. Liu, T. Hattori","doi":"10.1109/IRMMW-THZ.2015.7327792","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327792","url":null,"abstract":"Metal rod array (MRA) are presented as the microstructured cladding of a rectangle channel waveguide to guide terahertz (THz) waves. The microstructure cladding is critical to modify the waveguide loss, dispersion, resonance, and pass-band. THz-field resonance and the corresponding modal field are taken as examples to express that the MRA period can be tailored for engineering the waveguide. MRA is agreed as a plasmonic metalmaterial, possessing spoof plasma frequency and dependent on the MRA geometry. The case of THz-field resonance inside the waveguide channel is significant to mimic “plasmonic resonance” in THz region that does not appear in natural metals.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"137 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90630591","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327665
G. Ducournau, P. Szriftgiser, D. Bacquet, E. Peytavit, M. Zaknoune, R. Kassi, J. Lampin
We report on THz communication system using vectorial modulations schemes above 500 GHz. Using schottky-based electronic technologies at 588 GHz, potentialities of high-level multi-carrier modulation schemes for wireless links are analyzed. The wireless link is composed of an emitter with sub-harmonic mixer for up-conversion from 294 to 588 GHz and carrier modulation. A pumped zero-bias detector is used at reception. Mono-carrier signaling is realized using for up to 32-symbol modulation scheme and multi-carrier THz transmission is also achieved using several modulation schemes in parallel.
{"title":"QAM-32/0.588 THz communication using electronic Schottky transceivers","authors":"G. Ducournau, P. Szriftgiser, D. Bacquet, E. Peytavit, M. Zaknoune, R. Kassi, J. Lampin","doi":"10.1109/IRMMW-THZ.2015.7327665","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327665","url":null,"abstract":"We report on THz communication system using vectorial modulations schemes above 500 GHz. Using schottky-based electronic technologies at 588 GHz, potentialities of high-level multi-carrier modulation schemes for wireless links are analyzed. The wireless link is composed of an emitter with sub-harmonic mixer for up-conversion from 294 to 588 GHz and carrier modulation. A pumped zero-bias detector is used at reception. Mono-carrier signaling is realized using for up to 32-symbol modulation scheme and multi-carrier THz transmission is also achieved using several modulation schemes in parallel.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"92 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90878922","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327562
M. Yu, W. Xu, D. An, M. Y. Zhang, Y. Xu, J. Chen, P. Wu
The heart of the integrated antenna and detector is the matching network between them. In this paper, four type antennas for matching the small impedances of high temperature superconducting terahertz detectors at 650GHz are proposed. And the coupling efficiency has improved for high temperature superconducting YBa2Cu2Ox (YBCO) Josephson junction detector with these antennas. Meanwhile, the array structures are designed to harvest more terahertz energy from the space. The resonant property and the coupling efficiency are measured by the terahertz time-domain spectroscopy (THz - TDS) system.
{"title":"Design of planar antennas for the superconducting terahertz detector","authors":"M. Yu, W. Xu, D. An, M. Y. Zhang, Y. Xu, J. Chen, P. Wu","doi":"10.1109/IRMMW-THZ.2015.7327562","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327562","url":null,"abstract":"The heart of the integrated antenna and detector is the matching network between them. In this paper, four type antennas for matching the small impedances of high temperature superconducting terahertz detectors at 650GHz are proposed. And the coupling efficiency has improved for high temperature superconducting YBa2Cu2Ox (YBCO) Josephson junction detector with these antennas. Meanwhile, the array structures are designed to harvest more terahertz energy from the space. The resonant property and the coupling efficiency are measured by the terahertz time-domain spectroscopy (THz - TDS) system.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"9 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87261491","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327755
O. Haenssler, S. Fatikow
Combining Scanning Electron Microscopy (SEM) and Microwave Microscopy is resulting in a hybrid microscope with multi-sensorial features. Parallelized measurements in the micro- and mm-wave region and manipulation of micro- and nano-scaled objects will be possible. Nanorobotic positioning stages with end-effectors inside the vacuum chamber of this microscope are controlled by an open-source automation software framework which also obtained live data and images of a Vector Network Analyzer (VNA) and the SEM.
{"title":"Manipulating and characterizing with nanorobotics: In-situ SEM technique for centimeter and millimeter waves","authors":"O. Haenssler, S. Fatikow","doi":"10.1109/IRMMW-THZ.2015.7327755","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327755","url":null,"abstract":"Combining Scanning Electron Microscopy (SEM) and Microwave Microscopy is resulting in a hybrid microscope with multi-sensorial features. Parallelized measurements in the micro- and mm-wave region and manipulation of micro- and nano-scaled objects will be possible. Nanorobotic positioning stages with end-effectors inside the vacuum chamber of this microscope are controlled by an open-source automation software framework which also obtained live data and images of a Vector Network Analyzer (VNA) and the SEM.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"49 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83986738","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327848
S. Pandey, Barun Gupta, A. Nahata
We present the first experimental demonstration of spatial localization (Anderson localization) of terahertz waves in plasmonic structures. The effect is brought upon by inclusion of disorder in a one dimensional plasmonic lattice. We discuss the effect of disorder on the propagation properties of the waveguide, the appearance of new modes beyond the stop band, and their transport properties. We also measure the spatial properties of the localized mode and compare the localization length to other experimental demonstrations. The results are consistent with prior published theoretical works.
{"title":"Anderson localization in terahertz plasmonic waveguides","authors":"S. Pandey, Barun Gupta, A. Nahata","doi":"10.1109/IRMMW-THZ.2015.7327848","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327848","url":null,"abstract":"We present the first experimental demonstration of spatial localization (Anderson localization) of terahertz waves in plasmonic structures. The effect is brought upon by inclusion of disorder in a one dimensional plasmonic lattice. We discuss the effect of disorder on the propagation properties of the waveguide, the appearance of new modes beyond the stop band, and their transport properties. We also measure the spatial properties of the localized mode and compare the localization length to other experimental demonstrations. The results are consistent with prior published theoretical works.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"94 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84294950","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327890
Ľ. Bača, M. Janek, Z. Kováčová, J. Molloy, M. Naftaly
CaZrO3 doped samples were prepared by using the solution combustion method. The higher powder sintering temperature induced slightly higher crystallinity in the studied samples with higher refractive indexes found. The differences in the dielectric behaviour and electronic conductivity of the samples may be attributed to the improved crystals order. However, a more detailed investigation of these materials is required.
{"title":"Dielectric properties of CaZrO3 investigated by THz-TDS","authors":"Ľ. Bača, M. Janek, Z. Kováčová, J. Molloy, M. Naftaly","doi":"10.1109/IRMMW-THZ.2015.7327890","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327890","url":null,"abstract":"CaZrO3 doped samples were prepared by using the solution combustion method. The higher powder sintering temperature induced slightly higher crystallinity in the studied samples with higher refractive indexes found. The differences in the dielectric behaviour and electronic conductivity of the samples may be attributed to the improved crystals order. However, a more detailed investigation of these materials is required.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"55 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85734799","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}
Pub Date : 2015-11-12DOI: 10.1109/IRMMW-THZ.2015.7327597
M. Šindler, C. Kadlec, H. Němec, F. Dominec, P. Kužel, C. Elissalde, U. Chung, P. Mounaix
TiO2 microspheres embedded in a dielectric layer were investigated both experimentally using time domain terahertz (THz) spectroscopy, and theoretically by finite-difference time-domain method. We focus on the role of the permittivity of the embedding medium. We find that media with sufficiently low permittivities do not significantly affect the effective response of the microspheres, which is a prerequisite for the fabrication of durable metamaterials with fixed spatial distribution of the components.
{"title":"THz response of TiO2 microspheres embedded in a dielectric layer","authors":"M. Šindler, C. Kadlec, H. Němec, F. Dominec, P. Kužel, C. Elissalde, U. Chung, P. Mounaix","doi":"10.1109/IRMMW-THZ.2015.7327597","DOIUrl":"https://doi.org/10.1109/IRMMW-THZ.2015.7327597","url":null,"abstract":"TiO2 microspheres embedded in a dielectric layer were investigated both experimentally using time domain terahertz (THz) spectroscopy, and theoretically by finite-difference time-domain method. We focus on the role of the permittivity of the embedding medium. We find that media with sufficiently low permittivities do not significantly affect the effective response of the microspheres, which is a prerequisite for the fabrication of durable metamaterials with fixed spatial distribution of the components.","PeriodicalId":6577,"journal":{"name":"2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)","volume":"1 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86543303","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}
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