Pub Date : 2021-01-01DOI: 10.37421/2469-410X.2021.8.140
K. Bartosiewicz
{"title":"A Short Note on Laser Optics","authors":"K. Bartosiewicz","doi":"10.37421/2469-410X.2021.8.140","DOIUrl":"https://doi.org/10.37421/2469-410X.2021.8.140","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80209227","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}
Photorefractive effects in optical waveguides link two interesting research areas: First, light-induced refractive index changes in optical materials, and second waveguide structures that are the basis for integrated optical devices. In the last two decades several devices based on photorefractive waveguides have been proposed, and static and dynamic elements have been experimentally demonstrated. Two of these applications of photorefractive waveguides will be discussed in more detail. Permanent refractive index gratings in waveguide devices are of considerable interest for, e.g., integrated waveguide lasers or wavelength multiplexers that make use of the high spectral selectivity of holographic filters. Thermal fixing of holographic gratings has been investigated in channel LiNbO3:Ti:Fe waveguides. A wavelength filter for infrared light around 1.55 micrometer has been fabricated with a peak reflectivity of over 99%, a bandwidth of 0.1 nm and nearly polarization independent properties. As another example, we have demonstrated the formation of photorefractive spatial solitons in a planar strontium-barium niobate waveguide. In such a geometry (1 + 1)-dimensional solitons are formed in a true (1 + 1)- dimensional medium, thus getting rid of the transverse instability that is inherent to soliton propagation in bulk crystals. We show that coherent collisions between two photorefractive solitons result in fusion, repelling, energy exchange, or the creation of a third soliton.
{"title":"Photorefractive waveguides","authors":"D. Kip, J. Hukriede, M. Wesner, E. Kratzig","doi":"10.1117/12.363929","DOIUrl":"https://doi.org/10.1117/12.363929","url":null,"abstract":"Photorefractive effects in optical waveguides link two interesting research areas: First, light-induced refractive index changes in optical materials, and second waveguide structures that are the basis for integrated optical devices. In the last two decades several devices based on photorefractive waveguides have been proposed, and static and dynamic elements have been experimentally demonstrated. Two of these applications of photorefractive waveguides will be discussed in more detail. Permanent refractive index gratings in waveguide devices are of considerable interest for, e.g., integrated waveguide lasers or wavelength multiplexers that make use of the high spectral selectivity of holographic filters. Thermal fixing of holographic gratings has been investigated in channel LiNbO3:Ti:Fe waveguides. A wavelength filter for infrared light around 1.55 micrometer has been fabricated with a peak reflectivity of over 99%, a bandwidth of 0.1 nm and nearly polarization independent properties. As another example, we have demonstrated the formation of photorefractive spatial solitons in a planar strontium-barium niobate waveguide. In such a geometry (1 + 1)-dimensional solitons are formed in a true (1 + 1)- dimensional medium, thus getting rid of the transverse instability that is inherent to soliton propagation in bulk crystals. We show that coherent collisions between two photorefractive solitons result in fusion, repelling, energy exchange, or the creation of a third soliton.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91195759","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}
British Aerospace has established an analysis service for UK Police and Customs authorities based on its CONDOR contraband detection system. The service has been successfully used to detect drug traces in cars, buildings and on bank notes. Recent legislation in the UK allows for the confiscation of the proceeds of drug related crime. The service has been used to assist in the confiscation of large sums of money, presumably drug related, being taken out of the country. A range of drugs has been detected on suspect money, whereas money in general circulation, obtained from the Bank of England, has been shown to be free from contamination. The way in which samples are collected and analyzed, and typical results are discussed.
{"title":"Hot money","authors":"G. Bennett, R. Sleeman","doi":"10.1117/12.189187","DOIUrl":"https://doi.org/10.1117/12.189187","url":null,"abstract":"British Aerospace has established an analysis service for UK Police and Customs authorities based on its CONDOR contraband detection system. The service has been successfully used to detect drug traces in cars, buildings and on bank notes. Recent legislation in the UK allows for the confiscation of the proceeds of drug related crime. The service has been used to assist in the confiscation of large sums of money, presumably drug related, being taken out of the country. A range of drugs has been detected on suspect money, whereas money in general circulation, obtained from the Bank of England, has been shown to be free from contamination. The way in which samples are collected and analyzed, and typical results are discussed.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74638415","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 : 2019-02-08DOI: 10.4172/2469-410x-c4-032
pPol FornDiazp
{"title":"Quantum electrodynamics with an artificial atom in a superconducting circuit","authors":"pPol FornDiazp","doi":"10.4172/2469-410x-c4-032","DOIUrl":"https://doi.org/10.4172/2469-410x-c4-032","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75614851","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 : 2018-12-31DOI: 10.4172/2469-410X-C7-040
pAlex A Kazemip
{"title":"High speed laser based intersatellite link systems for harsh environment of space","authors":"pAlex A Kazemip","doi":"10.4172/2469-410X-C7-040","DOIUrl":"https://doi.org/10.4172/2469-410X-C7-040","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73461253","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 : 2018-10-18DOI: 10.4172/2469-410X-C5-036
pMahi R Singhp
{"title":"Study of plasmonics and phononics in nanohybrids made of graphene and polar crystals and their applications to nanoswitches and nanosensors","authors":"pMahi R Singhp","doi":"10.4172/2469-410X-C5-036","DOIUrl":"https://doi.org/10.4172/2469-410X-C5-036","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91336007","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 : 2018-10-18DOI: 10.4172/2469-410X-C5-035
pHayat Rezguip
{"title":"Mathematical and numerical studies of an inverse eigenvalue problem on computing guided modes in optical fibers","authors":"pHayat Rezguip","doi":"10.4172/2469-410X-C5-035","DOIUrl":"https://doi.org/10.4172/2469-410X-C5-035","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82142349","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 : 2018-08-25DOI: 10.4172/2469-410x-c2-027
pMaxim Yu Khlopovp
{"title":"Fundamental relationship of cosmology and particle physics","authors":"pMaxim Yu Khlopovp","doi":"10.4172/2469-410x-c2-027","DOIUrl":"https://doi.org/10.4172/2469-410x-c2-027","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73210580","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 : 2018-02-26DOI: 10.4172/2469-410X.1000177
Apollonov Vv, P. VoinovYu
A method for measuring and unambiguous interpretation of the results of measuring the speed of synchrotron radiation (speed of light) is developed.
提出了一种同步辐射速度(光速)测量结果的测量和明确解释方法。
{"title":"How to Measure the Speed of Synchrotron Radiation","authors":"Apollonov Vv, P. VoinovYu","doi":"10.4172/2469-410X.1000177","DOIUrl":"https://doi.org/10.4172/2469-410X.1000177","url":null,"abstract":"A method for measuring and unambiguous interpretation of the results of measuring the speed of synchrotron radiation (speed of light) is developed.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88827807","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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