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Artigos de revistas sobre o tema "Brillouin scattering"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

GUERRA, R., J. T. MENDONÇA, and P. K. SHUKLA. "Stimulated Raman, Brillouin and dust–Brillouin scattering in dusty plasmas." Journal of Plasma Physics 59, no. 2 (1998): 343–65. http://dx.doi.org/10.1017/s002237789700620x.

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Stimulated scatterings of large-amplitude electromagnetic waves by Langmuir, dust–ion-acoustic and dust-acoustic waves in unmagnetized dusty plasmas are investigated by employing the standard methods of nonlinear three-wave interactions and by incorporating the effects of grain-charge fluctuations, collisions of electrons and ions with dust grains, the plasma drag on a dust grain (for the case of the dust-acoustic wave) and the dependence of the average dust charge on the dusty plasma parameters. Distinction is made between the charging collisions, when electrons and ions are accumulated onto

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2

Ahmad Hambali, N. A. M., M. Ajiya, M. M. Shahimin, M. H. A. Wahid, and M. A. Mahdi. "Single-wavelength ring-cavity fiber laser employed pre-amplification technique to reduce threshold by circulating spontaneous brillouin scattering." Indonesian Journal of Electrical Engineering and Computer Science 14, no. 1 (2019): 276. http://dx.doi.org/10.11591/ijeecs.v14.i1.pp276-283.

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<span>In this paper, two types of ring-cavity fiber laser structures that operate as a single wavelength laser were investigated on the threshold performance. The two structures are namely Brillouin fiber laser and Brillouin erbium fiber laser. In the first structure, the Brillouin pump signal was amplified before being injected into the laser cavity which namely as Brillouin fiber laser. Meanwhile, for second structure respectively, the Brillouin pump signal was pre-amplified in the laser cavity which namely as Brillouin Erbium fiber laser. We found that the stimulated Brillouin scatter

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3

Feng, Liuyan, Yi Liu, Wenjun He, et al. "Intramode Brillouin Scattering Properties of Single-Crystal Lithium Niobate Optical Fiber." Applied Sciences 12, no. 13 (2022): 6476. http://dx.doi.org/10.3390/app12136476.

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Ordinary step-type fiber usually has only one obvious Brillouin scattering gain peak with a low gain coefficient, resulting in a poor sensing performance. As a promising material for nonlinear photonics, lithium niobate can significantly improve the Brillouin gain due to its higher refractive index when replaced with the core material. Furthermore, the higher-order acoustic modes make the Brillouin gain spectrum exhibit multiple scattering peaks, which could improve the performance of sensors. In this study, we simulated the Brillouin scattering properties of different modes of intramode in st

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4

Qiu, Jie, Liang Hao, Lihua Cao, and Shiyang Zou. "Investigation of Langdon effect on the stimulated backward Raman and Brillouin scattering." Plasma Physics and Controlled Fusion 63, no. 12 (2021): 125021. http://dx.doi.org/10.1088/1361-6587/ac2e5b.

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Abstract In a laser-irradiated plasma, the Langdon effect makes the electron energy distribution function tend to a super-Gaussian distribution, which has important influence on laser plasma instabilities. In this work, the influence of a super-Gaussian electron energy distribution function on the convective stimulated backward Raman scattering and stimulated backward Brillouin scattering is studied systematically for a wide range of typical plasma parameters in the inertial confinement fusion. Distinct behaviors are found for stimulated Raman scattering and stimulated Brillouin scattering in

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5

Yu, Linfeng, Chukun Huang, Ming Cheng, et al. "On-chip stimulated Brillouin scattering [Invited]." Chinese Optics Letters 22, no. 2 (2024): 020031. http://dx.doi.org/10.3788/col202422.020031.

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6

Gerakis, A., M. N. Shneider, and P. F. Barker. "Coherent Brillouin scattering." Optics Express 19, no. 24 (2011): 24046. http://dx.doi.org/10.1364/oe.19.024046.

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7

Verkerk, Peter. "Neutron brillouin scattering." Neutron News 1, no. 1 (1990): 21. http://dx.doi.org/10.1080/10448639008210194.

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8

Yanukovich, T. P., and A. V. Polyakov. "Simulation of Distributed Current Sensor Based on Optical Fiber Deformation." Devices and Methods of Measurements 10, no. 3 (2019): 243–52. http://dx.doi.org/10.21122/2220-9506-2019-10-3-243-252.

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Due to the development of automation and control systems, methods and devices for measuring of electric current large values are of great interest. The aim of the work was to develop a schematic diagram of a distributed current strength sensor based on the Brillouin optical frequency domain analysis; to create a mathematical model of the sensor to demonstrate its work and to calculate the basic parameters of the sensor. To provide the measurement optical fiber with conductive coating is used. Between the current bus, where current is measured, and conductive coating the Ampere force arises. St

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9

Bogachkov, I. V., and N. I. Gorlov. "Determination of the Mandelstam – Brillouin Scatter Frequency Characteristic in Optical Fibers of Various Types." Journal of Physics: Conference Series 2182, no. 1 (2022): 012089. http://dx.doi.org/10.1088/1742-6596/2182/1/012089.

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Abstract The results of researches of the Mandelstam – Brillouin scattering frequency characteristics in single-mode optical fibers of various types are presented in this paper. A technique for obtaining the spectral characteristics of Mandelstam – Brillouin scattering for predefined acoustic mode distributions in single-mode optical fibers is considered. The procedure for determining the frequency characteristics of the Mandelstam – Brillouin scattering for a given structure of the radial distribution of the optical fiber refractive index is discussed. The Mandelstam – Brillouin scattering fr

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10

Gao, Jing, Linbo Zhang, Dongdong Jiao, et al. "Analysis and Reduction of Nonlinear Effects in Optical Fiber Frequency Transfer." Applied Sciences 13, no. 23 (2023): 12762. http://dx.doi.org/10.3390/app132312762.

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Nonlinear effects in optical fiber frequency transfer have a significant impact on the precision of frequency transfer. We investigate the main nonlinear effects, including the Brillouin scattering and the Raman scattering, in optical fiber frequency transfer through theoretical and simulation calculations in detail. The calculation results show that the threshold powers of the Brillouin scattering and the Raman scattering decrease with the increase in the fiber length; however, the fiber length has little to no impact on the threshold powers when the fiber length is greater than 10 km. The th

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11

Kojima, Seiji. "100th Anniversary of Brillouin Scattering: Impact on Materials Science." Materials 15, no. 10 (2022): 3518. http://dx.doi.org/10.3390/ma15103518.

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L. Brillouin predicted inelastic light scattering by thermally excited sound waves in 1922. Brillouin scattering is a non-contact and non-destructive method to measure sound velocity and attenuation. It is possible to investigate the elastic properties of gases, liquids, glasses, and crystals. Various kinds of phase transitions, i.e., liquid–glass transitions, crystallization, polymorphism, and denaturation have been studied by changing the temperature, pressure, time, and external fields such as the electric, magnetic, and stress fields. Nowadays, Brillouin scattering is extensively used to m

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12

Rodriguez, Anne, Elham Mehdi, Priya Priya, Edson R. Cardozo de Oliveira, Martin Esmann, and Norberto Daniel Lanzillotti-Kimura. "Polarization-controlled Brillouin scattering in elliptical optophononic resonators." Optics Express 32, no. 23 (2024): 41102. http://dx.doi.org/10.1364/oe.534680.

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The fast-growing development of optomechanical applications has motivated advancements in Brillouin scattering research. In particular, the study of high-frequency acoustic phonons at the nanoscale is interesting due to the large range of interactions with other excitations in matter. However, standard Brillouin spectroscopy schemes rely on fixed wavelength filtering, which limits their usefulness for the study of tunable optophononic resonators. It has been recently demonstrated that elliptical optophononic micropillar resonators induce different energy-dependent polarization states for the B

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13

Kim, Yong Hyun, and Kwang Yong Song. "Recent Progress in Distributed Brillouin Sensors Based on Few-Mode Optical Fibers." Sensors 21, no. 6 (2021): 2168. http://dx.doi.org/10.3390/s21062168.

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Brillouin scattering is a dominant inelastic scattering observed in optical fibers, where the energy and momentum transfer between photons and acoustic phonons takes place. Narrowband reflection (or gain and loss) spectra appear in the spontaneous (or stimulated) Brillouin scattering, and their linear dependence of the spectral shift on ambient temperature and strain variations is the operation principle of distributed Brillouin sensors, which have been developed for several decades. In few-mode optical fibers (FMF’s) where higher-order spatial modes are guided in addition to the fundamental m

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14

Liu, Zhiqiang, Jie Sun, Xianda Zhang, et al. "High-Accuracy Spectral Measurement of Stimulated-Brillouin-Scattering Lidar Based on Hessian Matrix and Steger Algorithm." Remote Sensing 15, no. 6 (2023): 1511. http://dx.doi.org/10.3390/rs15061511.

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The measurement accuracy of Brillouin scattering spectra is crucial for ocean remote sensing by Brillouin scattering lidar. Due to the limited resolution of ICCD cameras, the traditional processing methods remain at the pixel or partial sub-pixel level, which cannot meet the requirements of high-performance lidar. In this paper, to extract the frequency shift with high precision from stimulated Brillouin scattering (SBS) lidar, a novel spectral processing method with sub-pixel recognition accuracy is proposed based on the Hessian matrix and Steger algorithm combined with the least square fitti

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15

Tanaka, Yosuke, Hironobu Yoshida, and Takashi Kurokawa. "Guided-acoustic-wave Brillouin scattering observed backward by stimulated Brillouin scattering." Measurement Science and Technology 15, no. 8 (2004): 1458–61. http://dx.doi.org/10.1088/0957-0233/15/8/004.

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16

Chaban, Ievgeniia, Hyun D. Shin, Christoph Klieber, et al. "Time-domain Brillouin Scattering as a Local Temperature Probe in Liquids." MRS Advances 4, no. 1 (2019): 9–14. http://dx.doi.org/10.1557/adv.2018.650.

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ABSTRACTWe present results of time-domain Brillouin scattering (TDBS) to determine the local temperature of liquids. TDBS is based on an ultrafast pump-probe technique to determine the light scattering frequency shift caused by the propagation of coherent acoustic waves in a sample. Since the temperature influences the Brillouin scattering frequency shift, the TDBS signal probes the local temperature of the liquid. Results for the extracted Brillouin scattering frequencies recorded at different liquid temperatures and at different laser powers are shown to demonstrate the usefulness of TDBS as

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17

Palaniswamy NKumaran Kunthala, Rajeswari. "Brillouin Scattering based Distributed Sensing of Temperature." International Journal of Science and Research (IJSR) 1, no. 3 (2012): 44–46. http://dx.doi.org/10.21275/ijsr12120343.

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18

Dong, Yongkang. "High-Performance Distributed Brillouin Optical Fiber Sensing." Photonic Sensors 11, no. 1 (2021): 69–90. http://dx.doi.org/10.1007/s13320-021-0616-7.

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AbstractThis paper reviews the recent advances on the high-performance distributed Brillouin optical fiber sensing, which include the conventional distributed Brillouin optical fiber sensing based on backward stimulated Brillouin scattering and two other novel distributed sensing mechanisms based on Brillouin dynamic grating and forward stimulated Brillouin scattering, respectively. As for the conventional distributed Brillouin optical fiber sensing, the spatial resolution has been improved from meter to centimeter in the time-domain scheme and to millimeter in the correlation-domain scheme, r

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19

Omatsu, T., H. J. Kong, S. Park, et al. "The Current Trends in SBS and phase conjugation." Laser and Particle Beams 30, no. 1 (2012): 117–74. http://dx.doi.org/10.1017/s0263034611000644.

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AbstractThe current trends in stimulated Brillouin scattering and optical phase conjugation are overviewed. This report is formed by the selected papers presented in the “Fifth International Workshop on stimulated Brillouin scattering and phase conjugation 2010” in Japan. The nonlinear properties of phase conjugation based on stimulated Brillouin scattering and photo-refraction can compensate phase distortions in the high power laser systems, and they will also open up potentially novel laser technologies, e.g., phase stabilization, beam combination, pulse compression, ultrafast pulse shaping,

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20

Hotate, Kazuo. "Brillouin Optical Correlation-Domain Technologies Based on Synthesis of Optical Coherence Function as Fiber Optic Nerve Systems for Structural Health Monitoring." Applied Sciences 9, no. 1 (2019): 187. http://dx.doi.org/10.3390/app9010187.

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Brillouin optical correlation-domain technologies are reviewed as “fiber optic nerve systems” for the health monitoring of large structures such as buildings, bridges, and aircraft bodies. The Brillouin scattering property is used as a sensing mechanism for strain and/or temperature. Continuous lightwaves are used in the technologies, and their optical coherence properties are synthesized to realize position-selective measurement. This coherence manipulation technology is called the “synthesis of optical coherence function (SOCF)”. By utilizing SOCF technologies, stimulated Brillouin scatterin

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21

Chen, Hui, Zhenxu Bai, Xuezong Yang, et al. "Enhanced stimulated Brillouin scattering utilizing Raman conversion in diamond." Applied Physics Letters 120, no. 18 (2022): 181103. http://dx.doi.org/10.1063/5.0087092.

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Cascaded Brillouin lasers based on guided-wave structures are applied across a range of important fields such as optical communications, microwave photonics, and sensing. However, restricted by the volume and available transmission range of the gain medium, the power output and wavelength diversity of guided-wave Brillouin devices are somewhat limited. In this work, we report the design and development of a cascaded Brillouin laser based utilizing a free-space optical layout with a diamond crystal as the Brillouin gain medium. A quasi-continuous-wave, 1 μm laser was used as the pump laser, and

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22

Ostermeyer, M., H. J. Kong, V. I. Kovalev, et al. "Trends in stimulated Brillouin scattering and optical phase conjugation." Laser and Particle Beams 26, no. 3 (2008): 297–362. http://dx.doi.org/10.1017/s0263034608000335.

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AbstractAn overview on current trends in stimulated Brillouin scattering and optical phase conjugation is given. This report is based on the results of the “Second International Workshop on stimulated Brillouin scattering and phase conjugation” held in Potsdam/Germany in September 2007. The properties of stimulated Brillouin scattering are presented for the compensation of phase distortions in combination with novel laser technology like ceramics materials but also for e.g., phase stabilization, beam combination, and slow light. Photorefractive nonlinear mirrors and resonant refractive index g

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23

Merklein, Moritz, Irina V. Kabakova, Atiyeh Zarifi, and Benjamin J. Eggleton. "100 years of Brillouin scattering: Historical and future perspectives." Applied Physics Reviews 9, no. 4 (2022): 041306. http://dx.doi.org/10.1063/5.0095488.

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The Year 2022 marks 100 years since Leon Brillouin predicted and theoretically described the interaction of optical waves with acoustic waves in a medium. Accordingly, this resonant multi-wave interaction is referred to as Brillouin scattering. Today, Brillouin scattering has found a multitude of applications, ranging from microscopy of biological tissue, remote sensing over many kilometers, and signal processing in compact photonic integrated circuits smaller than the size of a thumbnail. What allows Brillouin scattering to be harnessed over such different length scales and research domains a

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24

O’Key, M. A., and M. R. Osborne. "Multikilohertz stimulated Brillouin scattering." Optics Letters 19, no. 7 (1994): 442. http://dx.doi.org/10.1364/ol.19.000442.

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25

Horikx, J. J. L., A. F. M. Arts, J. I. Dijkhuis, and H. W. de Wijn. "Brillouin scattering in incommensurateRb2ZnBr4andRb2ZnCl4." Physical Review B 39, no. 9 (1989): 5726–38. http://dx.doi.org/10.1103/physrevb.39.5726.

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26

Ma̧czka, Mirosław, Jae-Hyeon Ko, Seiji Kojima, Jerzy Hanuza, and Andrzej Majchrowski. "Brillouin scattering in RbNbWO6." Journal of Applied Physics 94, no. 6 (2003): 3781–84. http://dx.doi.org/10.1063/1.1601683.

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27

O'Key, M. A., and M. R. Osborne. "Broadband stimulated Brillouin scattering." Optics Communications 89, no. 2-4 (1992): 269–75. http://dx.doi.org/10.1016/0030-4018(92)90172-n.

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28

Pättikangas, T. J. H., and R. R. E. Salomaa. "Double stimulated Brillouin scattering." Physica Scripta 40, no. 1 (1989): 99–108. http://dx.doi.org/10.1088/0031-8949/40/1/013.

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Minami, Yasuo, Takeshi Yogi, and Keiji Sakai. "Millisecond Brillouin scattering spectroscopy." Applied Physics Letters 93, no. 16 (2008): 161107. http://dx.doi.org/10.1063/1.3002301.

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30

Corvo, Antonio, and Athanasios Gavrielides. "Forward stimulated Brillouin scattering." Journal of Applied Physics 63, no. 11 (1988): 5220–27. http://dx.doi.org/10.1063/1.340383.

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31

Mroz, B., and S. Mielcarek. "Double Brillouin scattering geometry." Journal of Physics D: Applied Physics 34, no. 3 (2001): 395–99. http://dx.doi.org/10.1088/0022-3727/34/3/324.

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32

Zhan, Yage, Ziyang Shen, Zeyu Sun, Qiao Yu, Hong Liu, and Yong Kong. "A two-parameter distributed sensing system for temperature and strain monitoring based on highly nonlinear fiber." Sensor Review 39, no. 1 (2019): 10–16. http://dx.doi.org/10.1108/sr-10-2017-0230.

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Purpose The purpose of this paper is to theoretically analyze and experimentally demonstrate the investigation of and present a kind of sensing system for monitoring simultaneous temperature and strain measurements based on highly nonlinear fiber (HNLF) and single mode fiber (SMF). Design/methodology/approach First, the stimulated Brillouin scattering (SBS) characteristics of the HNLF have been studied, including the Brillouin gain bandwidth, Brillouin gain center frequency and SBS threshold. Second, based on the Brillouin gain center frequency, the Brillouin frequency shift coefficients of st

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33

Bogachkov, I. V., and N. I. Gorlov. "AN IDENTIFICATION OF VARIETIES OF SINGLE-MODE OPTICAL FIBERS AND DETERMINATION OF THEIR LONGITUDINAL TENSION CHARACTERISTICS." DYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES 11, no. 4 (2023): 57–64. http://dx.doi.org/10.25206/2310-9793-2023-11-4-57-64.

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This paper presents the results of studies on the automation of the processing of measurements of Brillouin reflectograms containing various types of single-mode optical fibers. By analyzing the Mandelstam-Brillouin scattering parameters, it is possible to distinguish the varieties of optical fibers in the studied optical cables, as well as to estimate the change in Brillouin frequency shift and determine the degree of longitudinal tension. The initial values of the Brillouin frequency shift and the Mandelstam-Brillouin scattering spectrum for each type of optical fiber differ. Developed progr

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34

Sharma, R. P., and Ram Kishor Singh. "Stimulated Brillouin backscattering of filamented hollow Gaussian beams." Laser and Particle Beams 31, no. 4 (2013): 689–96. http://dx.doi.org/10.1017/s0263034613000670.

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AbstractThis paper presents an investigation for excitation of ion acoustic wave and resulting stimulated Brillouin scattering in a collisionless plasma due to presence of a laser beam carrying null intensity at center (hollow Gaussian beam). In presence of ponderomotive nonlinearity, the pump beam get focused and affects the back stimulated Brillouin scattering process. To understand the nature of laser plasma coupling, a paraxial-ray approximation has been invoked for the propagation of the hollow Gaussian beam, ion acoustic wave, and stimulated Brillouin scattering. It is observed from the

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35

Gao, Qilin, Zhiwei Lu, Chengyu Zhu, and Jianhui Zhang. "High efficient beam cleanup based on stimulated Brillouin scattering with a large core fiber." Laser and Particle Beams 32, no. 4 (2014): 517–21. http://dx.doi.org/10.1017/s0263034614000445.

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AbstractA novel approach of beam cleanup based on stimulated Brillouin scattering with a large core fiber is proposed to improve the laser beam quality. The fusion splice scheme from a single-mode fiber to a very large core fiber (105 µm) is first employed in stimulated Brillouin scattering to steadily excite the fundamental mode of the Stokes beam. As a result, the output beam achieves a measured M2 value of around 1.3 meanwhile the pump conversion efficiency is up to 90%, which is the best in the reports of stimulated Brillouin scattering cleanup to our knowledge.

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36

Shanavas, Thariq, Michael Grayson, Bo Xu, Mo Zohrabi, Wounjhang Park, and Juliet T. Gopinath. "Cascaded forward Brillouin lasing in a chalcogenide whispering gallery mode microresonator." APL Photonics 7, no. 11 (2022): 116108. http://dx.doi.org/10.1063/5.0112847.

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We report the first observation of cascaded forward stimulated Brillouin scattering in a microresonator platform. We have demonstrated 25 orders of intramodal Stokes beams separated by a Brillouin shift of 34.5 MHz at a sub-milliwatt threshold at 1550 nm. An As2S3 microsphere of diameter 125 µm with a quality factor of 1 × 106 was used for this demonstration. Theoretical modeling is used to support our experimental observations of Brillouin shift and threshold power. We expect our work will advance the field of forward stimulated Brillouin scattering in integrated photonics, with applications

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37

Gao, W., Z. W. Lu, S. Y. Wang, W. M. He, and W. L. J. Hasi. "Measurement of stimulated Brillouin scattering threshold by the optical limiting of pump output energy." Laser and Particle Beams 28, no. 1 (2010): 179–84. http://dx.doi.org/10.1017/s0263034610000054.

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AbstractA new approach to measure stimulated Brillouin scattering threshold based on the output energy characteristic of stimulated Brillouin scattering optical limiting is proposed. The stimulated Brillouin scattering threshold or its exponential gain, Gth, can be accurately and conveniently determined by the intersection point of linear-fitting lines of the output energy below and above the threshold. The values of Gth in CS2 and FC-72 for different wavelengths and interaction lengths are measured in Continuum's Nd:YAG Q-switched laser and its frequency-doubled system. We show that Gth for t

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38

Hanlon, Dillon F., Bradley D. McNiven, Stephen J. Spencer, and G. T. Andrews. "Brillouin light scattering spectroscopy as a versatile probe of hypersound in diverse materials systems." Journal of the Acoustical Society of America 152, no. 4 (2022): A260. http://dx.doi.org/10.1121/10.0016202.

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An overview of the inelastic laser light scattering technique of Brillouin spectroscopy and its application to the study of hypersound in a diverse set of materials systems will be presented. In particular, results obtained from recent Brillouin scattering experiments on natural gastropod mucus, layered high temperature superconductor Bi2Sr2CaCu2O8+δ, biotite micas, and satellite tobacco mosaic virus crystals will be highlighted. Collectively, these results demonstrate the utility of Brillouin light scattering spectroscopy as a sensitive non-destructive probe of hypersound velocity and attenua

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39

Journal, Baghdad Science. "Mathematical model of optical amplifier using nonlinear stimulated Brillouin scattering (SBS) in optical fiber." Baghdad Science Journal 4, no. 1 (2007): 142–46. http://dx.doi.org/10.21123/bsj.4.1.142-146.

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We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier. The SBS is created by interaction between the incident We demonstrate the results of a mathematical model for investigation the nonlinear Stimulated Brillouin Scattering (SBS), which can be employed to achieve high optical amplifier. The SBS is created by interaction between the incident light and the acoustic vibration fiber. The design criteria and the amplification characteristic of the Brillouin amplifier is demon

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40

Wang, Yahui, Jing Chen, Jinglian Ma, Lintao Niu, and Mingjiang Zhang. "High-Spatial-Resolution Dynamic Strain Measurement Based on Brillouin Optical Correlation-Domain Sensors." Photonics 10, no. 11 (2023): 1255. http://dx.doi.org/10.3390/photonics10111255.

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Brillouin-scattering-based sensors have been widely applied in distributed temperature or strain measurement in recent 20 years. Brillouin optical correlation-domain technology has extensive development and application prospects because of its millimeter-level spatial resolution, distribution measurement, and high accuracy. Traditional Brillouin-scattering-based sensors, requiring a time-consuming frequency-sweep process, struggle to achieve dynamic strain measurement. In this article, Brillouin optical correlation-domain analysis and reflectometry based on fast-sweep frequency and slope-assis

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41

Wang, Yanzhao, Hongrun Ren, and Yunjie Teng. "Tailorable Brillouin Light Scattering in Air-Slit Suspended Waveguide." Photonics 12, no. 6 (2025): 586. https://doi.org/10.3390/photonics12060586.

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Silicon-based optical waveguides exhibit high Brillouin gain, enabling the realization of Brillouin lasers directly on silicon substrates. These lasers hold significant promise for applications such as tunable-frequency laser emission, ultrafast pulse generation via mode-locking techniques, and other advanced photonic functionalities. However, a key challenge in silicon-based Brillouin lasers is the requirement for long waveguide lengths to achieve sufficient optical feedback and reach the lasing threshold. This study proposes a novel floating waveguide architecture designed to significantly e

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42

Yeap, Soon Heng, Siamak Dawazdah Emami, and Hairul Azhar Abdul-Rashid. "Numerical model for enhancing stimulated Brillouin scattering in optical microfibers." F1000Research 10 (June 30, 2021): 521. http://dx.doi.org/10.12688/f1000research.51029.1.

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Stimulated Brillouin scattering (SBS) is useful, among others for generating slow light, sensing and amplification. SBS was previously viewed as a poor method due to the limitation on optical power in high-powered photonic applications. However, considering the many possible applications using SBS, it is now of interest to enhance SBS in areas of Brillouin frequency shift together with Brillouin Gain. A numerical model, using a fully vectorial approach, by employing the finite element method, was developed to investigate methods for enhancing SBS in optical fiber. This paper describes the meth

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Feng, Cheng, and Thomas Schneider. "Benefits of Spectral Property Engineering in Distributed Brillouin Fiber Sensing." Sensors 21, no. 5 (2021): 1881. http://dx.doi.org/10.3390/s21051881.

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As one of the most consolidated distributed fiber sensors based on stimulated Brillouin scattering, the Brillouin optical time-domain analyzer (BOTDA) has been developed for decades. Despite the commercial availability and outstanding progresses which has been achieved, the intrinsic Lorentzian gain spectrum restricts the sensing performance from possible further enhancements and hence limits the field of validity of the technique. In this paper, the novel method of engineering the gain spectral properties of the Brillouin scattering and its application on static and dynamic BOTDA sensors will

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Yeap, Soon Heng, Siamak Dawazdah Emami, and Hairul Azhar Abdul-Rashid. "Numerical model for enhancing stimulated Brillouin scattering in optical microfibers." F1000Research 10 (February 17, 2022): 521. http://dx.doi.org/10.12688/f1000research.51029.2.

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Stimulated Brillouin scattering (SBS) is useful, among others for generating slow light, sensing and amplification. SBS was previously viewed as a poor method due to the limitation on optical power in high-powered photonic applications. However, considering the many possible applications using SBS, it is now of interest to enhance SBS in areas of Brillouin frequency shift together with Brillouin Gain. A numerical model, using a fully vectorial approach, by employing the finite element method, was developed to investigate methods for enhancing SBS in optical fiber. This paper describes the meth

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Shaashoua, Roni, and Alberto Bilenca. "Aperture-induced spectral effects in stimulated Brillouin scattering microscopy." Applied Physics Letters 122, no. 14 (2023): 143702. http://dx.doi.org/10.1063/5.0146627.

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Stimulated Brillouin scattering (SBS) microscopy is emerging as a promising approach for mechanical imaging in biological settings. It is based on a spectroscopic backscattering SBS setup, but with scanning of the sample and using higher apertures of the excitation and collection optics for adequate spatial sampling. Here, we provide direct experimental measurements and theoretical predictions of the aperture-induced spectral effects of SBS microscopy in water—a key constituent of biological systems. It is shown that with increasing numerical aperture (NA), the Brillouin frequency shift and pe

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Malek, A. Zakiah, N. A. M. Ahmad Hambali, M. H. A. Wahid, M. A. M. Azidin, Siti Salwa Mat Isa, and M. M. Shahimin. "Fiber Length Optimization of Ring Cavity Multi-Wavelength Brillouin Fiber Laser Utilizing Fiber Bragg Grating." Applied Mechanics and Materials 815 (November 2015): 343–47. http://dx.doi.org/10.4028/www.scientific.net/amm.815.343.

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In this paper, we experimentally investigated the performance of ring cavity multi-wavelength Brillouin fiber laser utilizing fiber Bragg grating which operated in the C-band wavelength region. The combination of stimulated Brillouin scattering and selective wavelengths gave a new invention in the optical fiber communication. Five different lengths of single mode fiber are used in order to get the best gain medium for stimulated Brillouin scattering effect. Up to 33 of Brillouin Stokes signals and 31 of anti-Stokes signals were obtained when 10 km fiber length was used in the laser system. The

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Xu, Hua, Wensuo Yi, Ruiyang Ding, and Qiongjia Pang. "Research on Strain Extraction Method Based on BOTDR Scattering Spectrum." Journal of Physics: Conference Series 2988, no. 1 (2025): 012011. https://doi.org/10.1088/1742-6596/2988/1/012011.

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Abstract This study explores a novel signal detection method for a stress-strain sensing system based on the principle of Brillouin backscattering. Currently, signal detection methods in this field face challenges such as high computational load, low accuracy, and poor consistency. This paper proposes the use of the Adaptive Gradient Descent Algorithm (Adam) for fitting calculations on Brillouin scattering signals, and it establishes a Brillouin strain measurement system for heterodyne coherent detection. Experimental results indicate that the strain error after applying the Adam method to fit

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Bogachkov, I. V., N. I. Gorlov, E. T. Kitova, and T. I. Monastyrskaya. "Application of Brillouin scattering in optic-fiber sensors." Journal of Physics: Conference Series 2091, no. 1 (2021): 012070. http://dx.doi.org/10.1088/1742-6596/2091/1/012070.

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Abstract The article analyses possible applications for Brillouin scattering in optic-fiber sensors. They make it possible to do temperature and physical strain measurements with high accuracy for long line sections. The functional dependences of the output signals characteristics on parameters measured by the sensors are studied. Of particular interest are the results of the analysis of the spectral component shifts in the Brillouin light scattering depending on the fiber elongation and temperature. After a brief review of the basic theoretical principles the results of some researches aimed

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Rioboó, Rafael J. Jiménez, Nuria Gontán, Daniel Sanderson, Manuel Desco, and Maria Victoria Gómez-Gaviro. "Brillouin Spectroscopy: From Biomedical Research to New Generation Pathology Diagnosis." International Journal of Molecular Sciences 22, no. 15 (2021): 8055. http://dx.doi.org/10.3390/ijms22158055.

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Brillouin spectroscopy has recently gained considerable interest within the biomedical field as an innovative tool to study mechanical properties in biology. The Brillouin effect is based on the inelastic scattering of photons caused by their interaction with thermodynamically driven acoustic modes or phonons and it is highly dependent on the material’s elasticity. Therefore, Brillouin is a contactless, label-free optic approach to elastic and viscoelastic analysis that has enabled unprecedented analysis of ex vivo and in vivo mechanical behavior of several tissues with a micrometric resolutio

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Kasumova R. J., Kerimli N. V., and Safarova G. A. "Phase effects at stimulated Brillouin scattering." Optics and Spectroscopy 131, no. 1 (2023): 41. http://dx.doi.org/10.21883/eos.2023.01.55515.3165-22.

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In the study of stimulated Brillouin scattering (SBS) in the constant intensity approximation, the spatial behavior of the intensity of the Stokes scattering wave in a medium was investigated. It was found that as a result of nonlinear interaction of waves, the period of spatial beats changes. The intensity of the Stokes scattering component is considered as a function of the phase mismatch, pump and acoustic wave intensities. It is found that the efficiency of the scattering of the backward Stokes wave is affected by the total length of the nonlinear medium. According to the analytical expres

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