Bulletin of the Lebedev Physics Institute最新文献

A Fiber-Optic Angular Displacement Sensor Based on Optical Microfibers and Its Calibration Method 基于光学微纤维的光纤角位移传感器及其校准方法

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601808

F. A. Egorov

{"title":"A Fiber-Optic Angular Displacement Sensor Based on Optical Microfibers and Its Calibration Method","authors":"F. A. Egorov","doi":"10.3103/S1068335624601808","DOIUrl":"10.3103/S1068335624601808","url":null,"abstract":"A fiber-optic angular-displacement sensor with a pendulum sensing element based on an optical microfiber with end and side directional radiation outputs, which serve, respectively, for measuring angular displacements and creating a transverse component of the light pressure force that leads to a deflection of the pendulum from the local vertical direction. A method of remote calibration and an algorithm for the sensor operation are proposed, which provide the possibility of calibration without violating the measurement mode. The method is based on the laser excitation of forced resonant oscillations of a pendulum–optical microfiber under the action of a transverse light-pressure force and the comparison of the resulting maximum values of the sensor output signals with the reference amplitude values of the angular deflections of the optical microfiber, which were calculated within the framework of the model of an elastic thin cantilever rod with a load at its end located in the Earth’s gravity field. The results obtained in this study and the approaches outlined in it may serve as the basis for creating new types of fiber-optic sensors characterized by a long service life and highly stable metrological indicators, which can be used, e.g., in systems for monitoring the technical conditions of construction structures and antenna mast systems, in systems of angular orientation and stabilization of platforms, etc.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 7 supplement","pages":"S572 - S580"},"PeriodicalIF":0.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714472","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

Temperature Dependence of the Output Optical Power of Semiconductor Lasers–Thyristors Based on AlGaAs/GaAs/InGaAs Heterostructures 基于 AlGaAs/GaAs/InGaAs 异质结构的半导体激光器-晶闸管输出光功率的温度依赖性

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601766

P. S. Gavrina, A. A. Podoskin, I. V. Shushkanov, S. O. Slipchenko, N. A. Pikhtin, T. A. Bagaev, M. A. Ladugin, A. A. Marmalyuk, V. A. Simakov

引用次数: 0

Experiments in vivo for Melanoma Treatment Using Laser Technology and Zirconium Dioxide-Based Dielectric Particles 利用激光技术和二氧化锆介质粒子治疗黑色素瘤的活体实验

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601730

P. A. Ryabochkina, S. A. Khrushchalina, O. A. Kulikov, V. I. Shlyapkina, V. P. Ageev, N. Yu. Tabachkova, V. O. Veselova, T. V. Volkova

{"title":"Experiments in vivo for Melanoma Treatment Using Laser Technology and Zirconium Dioxide-Based Dielectric Particles","authors":"P. A. Ryabochkina, S. A. Khrushchalina, O. A. Kulikov, V. I. Shlyapkina, V. P. Ageev, N. Yu. Tabachkova, V. O. Veselova, T. V. Volkova","doi":"10.3103/S1068335624601730","DOIUrl":"10.3103/S1068335624601730","url":null,"abstract":"The features of thermal radiation occurrence in zirconium dioxide-based compounds doped with various rare earth (RE) ions were investigated to identify the RE ion type and excitation conditions most suitable for enhancing the thermal effect on biological tissue. Holmium-containing particles were found to emit heat upon excitation by radiation with wavelengths of 457 and 1940 nm, and thermal radiation occurs in thulium-containing particles upon excitation by radiation with a wavelength of 1940 nm. Experiments in vivo using particles studied in this work (with thulium and holmium ions) and previously (with ytterbium and erbium ions) have shown that the effect of enhancing the thermal action of laser radiation is most pronounced for ytterbium-containing particles and radiation with a wavelength of 970 nm. Experiments in vitro on mice have demonstrated the possibility of using ytterbium-containing particles when excited by laser radiation with a wavelength of 970 nm for melanoma treatment.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 7 supplement","pages":"S581 - S593"},"PeriodicalIF":0.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714473","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

Efficient Generation of X-Ray Radiation under Relativistic Laser Pulses Interaction with a Kr Cluster Jet 相对论激光脉冲与 Kr 簇射流相互作用下 X 射线辐射的高效生成

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601791

P. A. Shcheglov, M. M. Nazarov, T. A. Semenov, A. A. Tausenev, M. V. Chashchin, A. V. Lazarev, V. M. Gordienko

引用次数: 0

Control of Dimensional and Optical Properties of Laser-Synthesized TiN Nanoparticles for Biomedical Applications 控制用于生物医学应用的激光合成 TiN 纳米粒子的尺寸和光学特性

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S106833562460181X

V. S. Chernyakova, G. V. Tikhonovskii, A. P. Satina, I. V. Sozaev, M. S. Savinov, P. V. Shakhov, D. I. Tselikov, A. A. Popov, A. A. Fronya, I. N. Zavestovskaya, S. M. Klimentov, A. V. Kabashin

{"title":"Control of Dimensional and Optical Properties of Laser-Synthesized TiN Nanoparticles for Biomedical Applications","authors":"V. S. Chernyakova, G. V. Tikhonovskii, A. P. Satina, I. V. Sozaev, M. S. Savinov, P. V. Shakhov, D. I. Tselikov, A. A. Popov, A. A. Fronya, I. N. Zavestovskaya, S. M. Klimentov, A. V. Kabashin","doi":"10.3103/S106833562460181X","DOIUrl":"10.3103/S106833562460181X","url":null,"abstract":"The dimensional and optical properties of nanomaterials largely determine the prospects of their application in biomedicine. We have studied the feasibility of controlling the dimensional and optical characteristics of laser-synthesized titanium nitride (TiN) nanoparticles (NP) using various liquid media (water, isopropanol, acetone, or acetonitrile) and laser focusing parameters and energy. Laser ablation of the TiN target in all solvents resulted in the formation of spherical NPs with the mode and half-width of the size distribution dependent on the type of liquid. We show that the use of organic solvents can produce NPs with higher coefficients of mass extinction (up to 35.2 L cm–1 g–1) and of photothermal conversion (up to 69%) in the window of relative biotissue transparency for aqueous medium. It is also demonstrated that the mode and half-width of the TiN NP size distribution decreases as the distance from the lens to the target surface increases or laser radiation energy decreases. These findings form a quantitative basis for developing laser-synthesized TiN NPs with controlled properties and they also prove their high potential for applications in biomedicine.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 7 supplement","pages":"S594 - S601"},"PeriodicalIF":0.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714474","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

Measuring Spectral Quantum Efficiency of Infrared Photodiodes 测量红外光电二极管的光谱量子效率

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601833

V. P. Khodunkov, Yu. P. Zarichnyak

引用次数: 0

Increased Nuclear Reaction Yields in Cluster Targets Irradiated with Circularly Polarized, Short and Intense Laser Pulses 利用圆偏振、短而强的激光脉冲辐照簇状目标，提高其核反应当量

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601754

A. A. Andreev, L. A. Litvinov, K. Yu. Platonov

引用次数: 0

Study of the Lasing Efficiency of a Single-Mode, Longitudinally Diode CW-Pumped, Q-Switched YLF:Nd3+ Laser 单模纵向二极管 CW 泵浦 Q 开关 YLF:Nd3+ 激光器的激光效率研究

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601717

A. Yu. Abazadze

引用次数: 0

InGaAs/AlInAs/InP Quantum-Cascade Lasers with Reflective and Antireflective Optical Coatings 具有反射和抗反射光学涂层的 InGaAs/AlInAs/InP 量子级联激光器

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601742

K. A. Podgaetskii, A. V. Lobintsov, A. I. Danilov, A. V. Ivanov, M. A. Ladugin, A. A. Marmalyuk, E. V. Kuznetsov, V. V. Dyudelev, D. A. Mikhailov, D. V. Chistyakov, E. A. Kognovitskaya, S. N. Losev, S. Kh. Abdulrazak, A. V. Babichev, G. M. Savchenko, A. V. Lyutetskii, S. O. Slipchenko, N. A. Pikhtin, A. G. Gladyshev, I. I. Novikov, L. Ya. Karachinsky, A. Yu. Egorov, G. S. Sokolovskii

{"title":"InGaAs/AlInAs/InP Quantum-Cascade Lasers with Reflective and Antireflective Optical Coatings","authors":"K. A. Podgaetskii, A. V. Lobintsov, A. I. Danilov, A. V. Ivanov, M. A. Ladugin, A. A. Marmalyuk, E. V. Kuznetsov, V. V. Dyudelev, D. A. Mikhailov, D. V. Chistyakov, E. A. Kognovitskaya, S. N. Losev, S. Kh. Abdulrazak, A. V. Babichev, G. M. Savchenko, A. V. Lyutetskii, S. O. Slipchenko, N. A. Pikhtin, A. G. Gladyshev, I. I. Novikov, L. Ya. Karachinsky, A. Yu. Egorov, G. S. Sokolovskii","doi":"10.3103/S1068335624601742","DOIUrl":"10.3103/S1068335624601742","url":null,"abstract":"Quantum-cascade lasers (QCLs) based on InGaAs/AlInAs/InP with reflective and antireflective coatings are fabricated and studied. The manufactured lasers emit in the spectral range from 4 to 5 μm. The effect of variation in the front mirror reflectance on the output power of a QCL with a highly reflective rear mirror is investigated. It is shown that the use of an antireflective coating on the front face leads to a simultaneous increase in both the threshold current of the QCL and the slope of the light–current characteristic. This allows a higher output power to be achieved at high pump currents. In contrast, the use of a partially reflective coating on the front face not only reduces the threshold current of the QCL, but also decreases the slope of the light–current characteristic. Such QCLs may have an advantage over other emitters at low pump currents.","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 7 supplement","pages":"S507 - S511"},"PeriodicalIF":0.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714318","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

Determining by Luminescence Dynamics the Relaxation Rate Constant of CO Molecule’s First Vibrational Level on Water Vapor in the Afterglow of a Pulsed E-Beam Sustained Discharge 通过发光动力学确定脉冲电子束持续放电余辉中水蒸汽上 CO 分子第一振动级的弛豫速率常数

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-25 DOI: 10.3103/S1068335624601778

A. A. Ionin, A. Yu. Kozlov, I. V. Kochetov, A. K. Kurnosov, O. A. Rulev, D. V. Sinitsyn

引用次数: 0