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Bulletin of the Lebedev Physics Institute最新文献

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Dynamics of Exciton Formation in Planar Nanostructures under the Action of a Quantum Electromagnetic Field under Nonlinearity Conditions 非线性条件下量子电磁场作用下平面纳米结构中的激子形成动力学
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600505
I. A. Tereshchenko, O. V. Tikhonova
{"title":"Dynamics of Exciton Formation in Planar Nanostructures under the Action of a Quantum Electromagnetic Field under Nonlinearity Conditions","authors":"I. A. Tereshchenko,&nbsp;O. V. Tikhonova","doi":"10.3103/S1068335624600505","DOIUrl":"10.3103/S1068335624600505","url":null,"abstract":"<p>The features of exciton formation in planar nanostructures under the action of a nonclassical field under the conditions of Kerr phase modulation are analyzed. Excitations of various exciton channels are enhanced or suppressed depending on the nonlinearity magnitude in the system. The possibility of controlling different excitation channels by varying the frequency detuning of the field relative to the resonant transition is demonstrated, and an analytical formula for determining its optimal value is found. The effect of amplification of even excitation channels has been detected, which is caused by correlations of photons under the action of a field in a state of two-mode squeezed vacuum.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S129 - S137"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prospects for Using a Pulsed Tm-Doped Fiber Laser for Lithotripsy of Salivary Stones 使用脉冲掺铥光纤激光器对唾液腺结石进行碎石治疗的前景
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600554
Yu. K. Sedova, S. E. Minaev, E. O. Epifanov, D. V. Zhuchkova, S. P. Sysolyatin, V. P. Minaev, V. I. Yusupov, N. V. Minaev
{"title":"Prospects for Using a Pulsed Tm-Doped Fiber Laser for Lithotripsy of Salivary Stones","authors":"Yu. K. Sedova,&nbsp;S. E. Minaev,&nbsp;E. O. Epifanov,&nbsp;D. V. Zhuchkova,&nbsp;S. P. Sysolyatin,&nbsp;V. P. Minaev,&nbsp;V. I. Yusupov,&nbsp;N. V. Minaev","doi":"10.3103/S1068335624600554","DOIUrl":"10.3103/S1068335624600554","url":null,"abstract":"<p>Laser lithotripsy using optical fiber to fragment salivary gland stones (sialoliths) is currently one of the most successful methods for treating salivary stone disease. It is important to reduce the fragmentation time of extremely hard salivary stones, which in practice is more than three hours in the case of large stones. We present new approaches to lithotripsy related to the use of radiation from a nanosecond thulium-doped fiber laser at a wavelength of 1.94 μm. The study is performed using gypsum phantoms and sialoliths. Parameters of laser exposure are determined that provide a high rate of lithotripsy without significant heating of surrounding tissues. It is shown that the mechanism of action of nanosecond laser radiation, which is well absorbed in water upon fragmentation of stones, is associated with the burnout of the binding organic material of sialolite and the explosive boiling of water. The results obtained can serve as the basis for the development of new promising medical technology.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S146 - S156"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Features of High-Power Uni-Traveling-Carrier InGaAs/InP Photodiodes 高功率单向移动载流子 InGaAs/InP 光电二极管的特点
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600542
N. N. Bragin, V. N. Svetogorov, Yu. L. Ryaboshtan, A. A. Marmalyuk, A. V. Ivanov, M. A. Ladugin
{"title":"Features of High-Power Uni-Traveling-Carrier InGaAs/InP Photodiodes","authors":"N. N. Bragin,&nbsp;V. N. Svetogorov,&nbsp;Yu. L. Ryaboshtan,&nbsp;A. A. Marmalyuk,&nbsp;A. V. Ivanov,&nbsp;M. A. Ladugin","doi":"10.3103/S1068335624600542","DOIUrl":"10.3103/S1068335624600542","url":null,"abstract":"<p>A comparison is made of conventional pin photodetectors and modern uni-traveling-carrier photodetectors based on InGaAs/InP heterostructures. The differences in the designs of heterostructures of these photodetectors are considered and the resulting features of their functioning are analyzed. It is shown that with comparable photosensitivity, the saturation photocurrent of uni-traveling-carrier photodetectors is approximately four times greater than that in conventional pin photodetectors. Devices with a photosensitive area 40 μm in diameter reach the saturation current at an input optical power of 10–12 and 60–70 mW for pin and uni-traveling-carrier photodetectors, respectively (reverse bias voltage of 5 V).</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S180 - S184"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of Laser-Stimulated Heating of Aqueous Suspensions of Titanium Nitride Nanoparticles for Biomedical Applications 氮化钛纳米粒子水悬浮液在生物医学应用中的激光刺激加热研究
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600530
A. A. Bubnov, A. V. Syui, V. Yu. Timoshenko
{"title":"Study of Laser-Stimulated Heating of Aqueous Suspensions of Titanium Nitride Nanoparticles for Biomedical Applications","authors":"A. A. Bubnov,&nbsp;A. V. Syui,&nbsp;V. Yu. Timoshenko","doi":"10.3103/S1068335624600530","DOIUrl":"10.3103/S1068335624600530","url":null,"abstract":"<p>We report an experimental study of optical and photothermal properties of aqueous suspensions of titanium nitride (TiN) nanoparticles (NPs), exhibiting plasmon resonance in the visible and near-IR spectral regions. Dependences of the rate of photoinduced heating and the value of photothermal conversion efficiency (PCE) on the concentration of TiN NPs are obtained for exciting laser wavelengths of 532, 665, and 808 nm. It is found that under irradiation at 808 nm, the PCE is 1.5–2.5 times greater than that under irradiation in the visible range of the spectrum, and for all studied laser wavelengths, an increase in the PCE is observed with increasing NP concentration, reaching a value of 0.55 for an NP concentration on the order of 1 mg/ml under irradiation at a wavelength of 808 nm. The concentration dependence of the PCE is explained by the contribution of multiple scattering in combination with light absorption in ensembles of TiN NPs. The results may be useful for biomedical applications of TiN NPs in the method of local photohyperthermia under multifrequency laser excitation.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S171 - S179"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propagation of Electromagnetic Pulses with a Nonzero Electrical Area in Conducting Media 电面积不为零的电磁脉冲在导电介质中的传播
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600517
A. V. Bogatskaya, E. A. Volkova, A. M. Popov
{"title":"Propagation of Electromagnetic Pulses with a Nonzero Electrical Area in Conducting Media","authors":"A. V. Bogatskaya,&nbsp;E. A. Volkova,&nbsp;A. M. Popov","doi":"10.3103/S1068335624600517","DOIUrl":"10.3103/S1068335624600517","url":null,"abstract":"<p>The features of propagation of ultrashort electromagnetic pulses with a nonzero electric area in plasma media are considered. In the framework of the approximation of unidirectional pulse propagation, general solutions of the equation for the electric area of a pulse in a conducting medium with a linear response to an external influence were obtained. The obtained data are compared with the results of calculations of the electric pulse area based on the exact solution of the second-order wave equation.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S138 - S145"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Change in Transmittance of Indium-Tin-Oxide-Coated Silicon Waveguides Exposed to Intense Light Pulses 暴露于强光脉冲的氧化铟锡涂层硅波导的透射率变化
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600499
I. A. Pshenichnyuk, K. N. Garbuzov, D. S. Zemtsov, Yu. G. Gladush, S. S. Kosolobov
{"title":"Change in Transmittance of Indium-Tin-Oxide-Coated Silicon Waveguides Exposed to Intense Light Pulses","authors":"I. A. Pshenichnyuk,&nbsp;K. N. Garbuzov,&nbsp;D. S. Zemtsov,&nbsp;Yu. G. Gladush,&nbsp;S. S. Kosolobov","doi":"10.3103/S1068335624600499","DOIUrl":"10.3103/S1068335624600499","url":null,"abstract":"<p>A simple scheme is proposed that allows one to verify the effect of nonlinear properties of an indium-tin oxide film on the transmittance of integrated silicon waveguides. In the proposed implementation, the transmittance of the waveguide depends on the transmitted light intensity. The scheme is adapted for direct experimental verification. To calculate characteristics and optimize geometry, nonlinear Maxwell equations are solved numerically in frequency space. Nonlinearity is introduced into the equations as a general function, without the usual expansion in a series in powers of the field, and is parameterized on the basis of experimental data. Simulation is performed in three-dimensional space.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S123 - S128"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141509033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
InP-Based Electro-Optic and Electro-Absorption Modulators for the 1.5-μm Spectral Range 用于 1.5μm 光谱范围的 InP 基电光学和电吸收调制器
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600608
D. V. Gulyaev, K. S. Zhuravlev
{"title":"InP-Based Electro-Optic and Electro-Absorption Modulators for the 1.5-μm Spectral Range","authors":"D. V. Gulyaev,&nbsp;K. S. Zhuravlev","doi":"10.3103/S1068335624600608","DOIUrl":"10.3103/S1068335624600608","url":null,"abstract":"<p>The review examines telecom electro-optic modulators made of group III–V compound semiconductor material composed of indium phosphide. The operation principles of modulators and issues of heterostructure and modulator design optimization are considered; the results of recent developments and the achieved parameters of modulators are presented.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S101 - S116"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141509079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Femtosecond Cr2+:ZnSe Laser with Mode-Locking Based on Carbon Nanotubes 基于碳纳米管的具有模式锁定功能的飞秒 Cr2+:ZnSe 激光器
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S1068335624600529
S. O. Leonov, T. V. Eremin, M. P. Frolov, Yu. V. Korostelin, Ya. K. Skasyrsky, E. D. Obraztsova, V. I. Kozlovsky
{"title":"Femtosecond Cr2+:ZnSe Laser with Mode-Locking Based on Carbon Nanotubes","authors":"S. O. Leonov,&nbsp;T. V. Eremin,&nbsp;M. P. Frolov,&nbsp;Yu. V. Korostelin,&nbsp;Ya. K. Skasyrsky,&nbsp;E. D. Obraztsova,&nbsp;V. I. Kozlovsky","doi":"10.3103/S1068335624600529","DOIUrl":"10.3103/S1068335624600529","url":null,"abstract":"<p>The ultrashort pulse laser based on a Cr<sup>2+</sup>:ZnSe monocrystal has been presented, utilizing carbon nanotubes as a saturable absorber. The saturable absorber consists of a sapphire substrate onto which nanotubes are deposited. Such a structure enables the realization of an element capable of simultaneously functioning as a saturable absorber and as a compensator for intracavity dispersion, as the substrate thickness can be chosen during fabrication, allowing for the adjustment of the introduced dispersion. Several laser resonator configurations are discussed, demonstrating the possibility of generating ultrashort laser pulses with durations down to 160 fs, a repetition rate of 135 MHz, an output power of 17 mW, and a central wavelength of 2.45 µm.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S157 - S164"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wavefront Correction on a New Generation Multichannel High-Power Laser Facility 新一代多通道高功率激光设备的波前校正
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-06-17 DOI: 10.3103/S106833562460058X
S. A. Belkov, B. G. Zimalin, P. Yu. Kruglov, A. O. Lipatov, A. N. Manachinskii, A. V. Yakhlov
{"title":"Wavefront Correction on a New Generation Multichannel High-Power Laser Facility","authors":"S. A. Belkov,&nbsp;B. G. Zimalin,&nbsp;P. Yu. Kruglov,&nbsp;A. O. Lipatov,&nbsp;A. N. Manachinskii,&nbsp;A. V. Yakhlov","doi":"10.3103/S106833562460058X","DOIUrl":"10.3103/S106833562460058X","url":null,"abstract":"<p>We report an investigation of an adaptive system designed to correct the wavefront of laser beams up to 400 × 400 mm in size using a new generation multichannel laser facility. An algorithm is developed for the operation of the adaptive system to determine and correct wavefront aberrations of the laser beam in the amplification path without and with pumping slabs based on neodymium phosphate glass. Characteristic thermal aberrations of the amplification path that occur under slabs pumping are presented. A possibility of compensating for thermal aberrations in the amplifier path and the formation of a laser beam with an energy of up to 25 kJ and wavefront parameters of PV ≈ 1.4 μm and RMS ≈ 0.2 μm are experimentally demonstrated.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 2 supplement","pages":"S165 - S170"},"PeriodicalIF":0.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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 the Regeneration Regime in the Process of Generating Extremely Short Pulses in an Nd3+: YAG Laser with a Passive Shutter 在使用无源快门的 Nd3+：YAG 激光器产生极短脉冲的过程中实现再生机制
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-05-24 DOI: 10.3103/S1068335623601905
V. A. Babenko, A. A. Sychev
{"title":"Implementation of the Regeneration Regime in the Process of Generating Extremely Short Pulses in an Nd3+: YAG Laser with a Passive Shutter","authors":"V. A. Babenko,&nbsp;A. A. Sychev","doi":"10.3103/S1068335623601905","DOIUrl":"10.3103/S1068335623601905","url":null,"abstract":"<p>We report experimental results of using the resonator-loss-unloading method to implement relaxation properties of a passive shutter in an Nd<sup>3+</sup>:YAG laser with the aim of producing extremely short picosecond pulses. The application of a fast relaxing passive shutter based on a technologically advanced new pyrillocyanine dye and the use of the unloading method make it possible to obtain highly reproducible, ultrashort 7-ps light pulses from this laser.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 3","pages":"93 - 99"},"PeriodicalIF":0.6,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141149389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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