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2014 International Conference Laser Optics最新文献

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Stable generation of high-power subnanosecond laser pulses 稳定产生高功率亚纳秒激光脉冲
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886235
S. Gagarsky, P. Gnatyuk, M. Inochkin, K. Fedin, L. Khloponin, V. Khramov
{"title":"Stable generation of high-power subnanosecond laser pulses","authors":"S. Gagarsky, P. Gnatyuk, M. Inochkin, K. Fedin, L. Khloponin, V. Khramov","doi":"10.1109/LO.2014.6886235","DOIUrl":"https://doi.org/10.1109/LO.2014.6886235","url":null,"abstract":"A compact Nd:YAG laser with pulse energy more than 700mJ at 1064nm wavelength with individual spike duration less than 0.8ns was build. Supershort-term quasiperiodic Q-modulation of laser cavity was used for generation of stable subnanosecond pulses.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"1 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":"129255557","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
Nonstationary coherent optical effects in acetylene-filled hollow core photonic crystal fibers 乙炔填充空心光子晶体光纤中的非稳态相干光学效应
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886400
M. Ocegueda, E. Hernández, S. Stepanov, P. Agruzov, A. Shamray
{"title":"Nonstationary coherent optical effects in acetylene-filled hollow core photonic crystal fibers","authors":"M. Ocegueda, E. Hernández, S. Stepanov, P. Agruzov, A. Shamray","doi":"10.1109/LO.2014.6886400","DOIUrl":"https://doi.org/10.1109/LO.2014.6886400","url":null,"abstract":"We report studies of the nonstationary coherent effects, i.e., free optical induction, optical nutation, and photon echo, in a hollow-core photonic crystal fiber filled with acetylene. Nanosecond optical pulses were used in the experiments. The transverse relaxation time was estimated to be about 3 nanoseconds.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"16 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":"130179410","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
Passive V:YAG Q-switching operation of 1.34-µm Nd:YAG laser with loop cavity 1.34-µm环形腔Nd:YAG激光器的无源V:YAG调q操作
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886247
M. N. Ershkov, A. Gavrilov, A. Fedin, S. Smetanin, S. A. Solokhin
{"title":"Passive V:YAG Q-switching operation of 1.34-µm Nd:YAG laser with loop cavity","authors":"M. N. Ershkov, A. Gavrilov, A. Fedin, S. Smetanin, S. A. Solokhin","doi":"10.1109/LO.2014.6886247","DOIUrl":"https://doi.org/10.1109/LO.2014.6886247","url":null,"abstract":"Passive Q-switching operation of the flash-lamp pumped 1.34-μm Nd:YAG laser with loop cavity is experimentally investigated. Using a passive 47-% V:YAG Q-switch the laser generated the 380-mJ trains of 260-ns laser pulses with an individual pulse energy of 27 mJ.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"1 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":"128648016","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
Numerical simulations on self-focusing and filamentation of multi-terawatt picosecond CO2-laser pulse in air 多太瓦皮秒co2激光脉冲在空气中自聚焦和成丝的数值模拟
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886337
A. Zemlyanov, Y. Geints
{"title":"Numerical simulations on self-focusing and filamentation of multi-terawatt picosecond CO2-laser pulse in air","authors":"A. Zemlyanov, Y. Geints","doi":"10.1109/LO.2014.6886337","DOIUrl":"https://doi.org/10.1109/LO.2014.6886337","url":null,"abstract":"At present, CO2-laser is the only actual source of high-power 10-μm radiation traditionally used in various atmospheric optics applications where the extreme power at joule energy in laser pulse is crucial. The advent of high-pressure CO2:N2O gas mixture lasers involves a significant increase of the output pulse power up to multiterawatt level due to laser pulse shortening down to few picoseconds and even to hundreds of femtoseconds. The mid-IR spectral region is attractive because at the relatively low continual absorption the atmosphere can linearly transfer light power up to several terawatts. Further increase of laser power gives rise to nonlinear losses of propagating radiation, which is mostly due to ionization and optical breakdown of air against the background of Kerr self-focusing and filamentation of a laser beam.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"1 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":"128531274","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
Free-base and metallated bis-tetraphenylporphyrin covalent ensembles for optical power limiting 用于光功率限制的自由碱和金属双四苯基卟啉共价系综
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886384
I. Kislyakov, I. Belousova, S. Povarov, Ivan S. Sheiko, A. Konev, D. Lukyanov, A. Khlebnikov
{"title":"Free-base and metallated bis-tetraphenylporphyrin covalent ensembles for optical power limiting","authors":"I. Kislyakov, I. Belousova, S. Povarov, Ivan S. Sheiko, A. Konev, D. Lukyanov, A. Khlebnikov","doi":"10.1109/LO.2014.6886384","DOIUrl":"https://doi.org/10.1109/LO.2014.6886384","url":null,"abstract":"Summary form only given: Nonlinear absorption of metallated tetraphenylporphyrin (TPP), halogene substituted TPP and bis-TPP covalent ensembles is studied in a wide spectral range of visible and infrared light. Advantages of complexation with Pb and π-conjugation of bis-porphyrin ensembles for reverse saturable and two-photon absorptions were demonstrated. The compounds are useful for optical power limiting applications.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"12 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":"127432460","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
Implementation of multiterawatt femtosecond laser system at kilohertz repetition rate 千赫兹重复频率多太瓦飞秒激光系统的实现
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886276
V. Petrov, A. Laptev, E. Pestryakov, G. V. Kuptsov, V. Petrov, S. Frolov, V. Trunov, A. Kirpichnikov
{"title":"Implementation of multiterawatt femtosecond laser system at kilohertz repetition rate","authors":"V. Petrov, A. Laptev, E. Pestryakov, G. V. Kuptsov, V. Petrov, S. Frolov, V. Trunov, A. Kirpichnikov","doi":"10.1109/LO.2014.6886276","DOIUrl":"https://doi.org/10.1109/LO.2014.6886276","url":null,"abstract":"The report presents the basic principles of creation, scheme and the components of multiterawatt laser system at kilohertz repetition rate based on parametric amplification of femtosecond pulses and laser amplification of picosecond pulses for pumping of stages of parametric amplifier. On developed element base in pump channel of laser system, parameters of regenerative amplifier with output energies about 1 mJ at repetition rate of 1 kHz and central wavelength 1030 nm are experimentally investigated. Optical scheme of multipass cryogenic amplifier based on diode pumped Yb:Y2O3 laser ceramics is developed and parameters for increasing of output energy up to ~ 0.25-0.35 J are determined.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"60 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":"122432955","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
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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