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2014 International Conference Laser Optics最新文献

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Investigation of limiting properties of nonlinear materials 非线性材料的极限特性研究
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886407
M. Savelyev, A. Gerasimenko, S. Tereshchenko, V. Podgaetsky
{"title":"Investigation of limiting properties of nonlinear materials","authors":"M. Savelyev, A. Gerasimenko, S. Tereshchenko, V. Podgaetsky","doi":"10.1109/LO.2014.6886407","DOIUrl":"https://doi.org/10.1109/LO.2014.6886407","url":null,"abstract":"Definition of nonlinear optical characteristics of substances of laser radiation limiters (LRL) was considered. Nanocomposite and disperse optical materials based on single-walled carbon nanotubes (SWCNT) of semiconducting and metal types with a high perfection of the crystal structure were investigated. The amount of semiconducting SWCNTs outnumbered metal several times Most SWCNTs were presented in clusters as separate loose fibers. It indicated a high degree of its dispersion. In the dispersion of carboxylated SWCNTs in tetrahydrofuran laser attenuation coefficient AC ~ 13 at a linear transmission T0 ≈ 75 %. In the dispersion of SWCNT functionalized zinc phthalocyanine derivatives, AC = 13-14 at T0 = 55-75%. Nanocomposites based on polymethylmethacrylate with functionalized SWCNTs AC ~ 8 at T0 ≈ 70%. A new method of simultaneous calculation of the beam waist radius and nonlinear absorption coefficient from the Z_scan data is proposed. The value of nonlinear optical characteristics of ZnSe, porphyrin-graphene (Graphene-TPP), fullerene-graphene (Graphene-60), polyethylene oxide containing multilayer carbon nanotubes (PEO/MWNT), along with polymethine dyes PD-792 and PD-7098 and dicyanomethylene pyran dyes DCM-627 and DCM-684, are obtained.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130334153","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}
引用次数: 0
Pulse control and pulse jitter stabilization in Cr:ZnSe-passively Q-switched Ho:YAG lasers Cr: znse被动调q Ho:YAG激光器的脉冲控制和脉冲抖动稳定
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886482
O. Vershinin, I. Golubev, S. Larin, I. Moskalev, M. Mirov, S. Mirov, V. Gapontsev
{"title":"Pulse control and pulse jitter stabilization in Cr:ZnSe-passively Q-switched Ho:YAG lasers","authors":"O. Vershinin, I. Golubev, S. Larin, I. Moskalev, M. Mirov, S. Mirov, V. Gapontsev","doi":"10.1109/LO.2014.6886482","DOIUrl":"https://doi.org/10.1109/LO.2014.6886482","url":null,"abstract":"We report on experimental investigation of various methods for pulse control and pulse jitter stabilization in Cr:ZnSe passively Q-switched Ho:YAG lasers. We explore methods of synchronous pump power modulation and application of dual passive/active Q-switch. Pulse jitter <;0.1% and precise pulse control of PQS Ho:YAG laser has been achieved.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"59 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116890365","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}
引用次数: 0
Photo-physical processes in systems containing SWCNT-based hybrids with regard to optical power limiting 包含基于swcnts的杂化系统中的光物理过程和光功率限制
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886351
A. Vlasov, I. Belousova, I. Kislyakov
{"title":"Photo-physical processes in systems containing SWCNT-based hybrids with regard to optical power limiting","authors":"A. Vlasov, I. Belousova, I. Kislyakov","doi":"10.1109/LO.2014.6886351","DOIUrl":"https://doi.org/10.1109/LO.2014.6886351","url":null,"abstract":"Summary form only given: We report on the optical power limiting phenomena in fluid systems containing binary hybrid photo-active agents on the platform of SWCNTs in fluid matrices.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128078159","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}
引用次数: 0
Coherent laser control of current via molecular nano-junctions with semiconductor and graphene contacts 通过半导体和石墨烯接触的分子纳米结的相干激光电流控制
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886362
B. Fainberg
{"title":"Coherent laser control of current via molecular nano-junctions with semiconductor and graphene contacts","authors":"B. Fainberg","doi":"10.1109/LO.2014.6886362","DOIUrl":"https://doi.org/10.1109/LO.2014.6886362","url":null,"abstract":"We propose new approaches to coherent control of transport via molecular junctions. The first method is based on the application of intrinsic semiconductor contacts and optical frequencies below the semiconductor bandgap. Our analytical theory predicts a new phenomenon, referred to as coherent destruction of induced tunnelling, which extends the phenomenon of coherent destruction of tunnelling frequently discussed in the previous literature. We also propose to use graphene electrodes as a platform for effective photon assisted tunneling through molecular conduction nanojunctions. Our results illustrate the potential of semiconductor and graphene contacts in coherent control of photocurrent.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128620270","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}
引用次数: 0
Biomedical applicationof laser-induced muscle oxymyoglobin photodissociation 激光诱导肌肉氧肌红蛋白光解的生物医学应用
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886370
M. Asimov, A. N. Rubinov, R. Asimov
{"title":"Biomedical applicationof laser-induced muscle oxymyoglobin photodissociation","authors":"M. Asimov, A. N. Rubinov, R. Asimov","doi":"10.1109/LO.2014.6886370","DOIUrl":"https://doi.org/10.1109/LO.2014.6886370","url":null,"abstract":"The results of numerical simulation the interaction of low intensity laser radiation with muscle myoglobin (Mb) and oxymyoglobin (MbO2) are presented. It is shown that photodissociation of MbO2 allows regulate the concentration of oxygen (O2) in muscles in the zone of laser irradiation. In space medicine they may find application for prevention and elimination of negative effects of weightlessness on muscular activity of astronauts during long space flights.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134133222","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}
引用次数: 0
Advanced narrow band filters in PTR glass for Raman spectroscopy 先进的窄带滤波器在PTR玻璃拉曼光谱
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886364
V. Smirnov, O. Mokhun, V. Koulechov, A. Glebov, L. Glebov
{"title":"Advanced narrow band filters in PTR glass for Raman spectroscopy","authors":"V. Smirnov, O. Mokhun, V. Koulechov, A. Glebov, L. Glebov","doi":"10.1109/LO.2014.6886364","DOIUrl":"https://doi.org/10.1109/LO.2014.6886364","url":null,"abstract":"Summary form only given: Volume Bragg gratings in Photo-Thermo-Refractive (PTR) glass enable unmatched filter performance for RAMAN spectroscopy. High diffraction Volume Bragg gratings in Photo-Thermo-Refractive (PTR) glass enable unmatched filter performance for RAMAN spectroscopy. High diffraction efficiency combined with ultra-narrow bandwidth provide simultaneous access to Stokes and anti-Stokes Raman modes with frequencies as low as 5 cm-1. Recent advances in the technology of the diffractive elements in PTR glass enabled fabrication of Raman filters with optical density OD>5.efficiency combined with ultra-narrow bandwidth provide simultaneous access to Stokes and anti-Stokes Raman modes with frequencies as low as 5 cm-1. Recent advances in the technology of the diffractive elements in PTR glass enabled fabrication of Raman filters with optical density OD>5.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134373059","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}
引用次数: 0
Gold nanocomposites preparation and applications 金纳米复合材料的制备及应用
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886442
Henryk Laszewski, João Paulo Coelho, A. Guerrero‐Martínez
{"title":"Gold nanocomposites preparation and applications","authors":"Henryk Laszewski, João Paulo Coelho, A. Guerrero‐Martínez","doi":"10.1109/LO.2014.6886442","DOIUrl":"https://doi.org/10.1109/LO.2014.6886442","url":null,"abstract":"Composites were investigated by centuries due to extraordinary properties inaccessible by using bulk materials. Scientific discovery of nanotechnology caused, that researches focused on applications appropriate for this new field of science. However, most of nanostructures are too unstable and fragile to use them without modifications. One of funded pathways was a creation of composite materials with nanoparticles in order to increase processability and stability. It entails changing nanostructures properties and requires investigation of interactions between components. Additional issue is a selection of a proper material in order to create nanoparticles, which can significantly change characteristics of a composite. The purpose of work is presenting publications in order to characterize preparation methods associated with destined applications.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133009777","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}
引用次数: 0
New schemes of Raman fiber lasers 拉曼光纤激光器的新方案
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886465
S. Babin
{"title":"New schemes of Raman fiber lasers","authors":"S. Babin","doi":"10.1109/LO.2014.6886465","DOIUrl":"https://doi.org/10.1109/LO.2014.6886465","url":null,"abstract":"Summary form only given: A brief review of recent results obtained in new schemes of Raman fiber lasers (RFLs) is given. It is shown that cavity-free random lasing based on Rayleigh backscattering provides ultimate pump-to-Stokes conversion efficiency and broad-range wavelength tuning. Direct pumping of gradient-index fibers by multimode LDs offers high-power RFL operation below 1 μm. Combination of both approaches is also treated.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133931879","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}
引用次数: 0
Phonon-induced photoluminescence from a single quantum dot in the regime vibrational resonance 振动共振中单量子点声子诱导的光致发光
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886382
A. Baimuratov, V. Turkov, M. Leonov, Y. Gun’ko, A. Baranov, A. Fedorov, I. Rukhlenko
{"title":"Phonon-induced photoluminescence from a single quantum dot in the regime vibrational resonance","authors":"A. Baimuratov, V. Turkov, M. Leonov, Y. Gun’ko, A. Baranov, A. Fedorov, I. Rukhlenko","doi":"10.1109/LO.2014.6886382","DOIUrl":"https://doi.org/10.1109/LO.2014.6886382","url":null,"abstract":"We develop a theory of phonon-induced photoluminescence from a quantum dot in the regime of vibrational resonance. Using the generalized model for renormalization of the quantum dot's energy spectrum and the density matrix formalism, we derive an expression for the differential cross-section of the phonon-induced photoluminescence from a quantum dot.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"483 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127750866","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}
引用次数: 0
Two-photon interband absorption coefficients in tungstate and molybdate crystals 钨酸盐和钼酸盐晶体的双光子带间吸收系数
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886404
V. Lukanin, A. Karasik
{"title":"Two-photon interband absorption coefficients in tungstate and molybdate crystals","authors":"V. Lukanin, A. Karasik","doi":"10.1109/LO.2014.6886404","DOIUrl":"https://doi.org/10.1109/LO.2014.6886404","url":null,"abstract":"Two-photon absorption coefficients were measured in tungstate and molibdate crystals using 25ps laser pumping with 523.5 nm and 349 nm wavelengths.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121238179","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}
引用次数: 10
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