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On-chip Brillouin laser gyroscopes harnessing opto-acoustic interaction are an emerging approach to detect rotation, due to their small footprint, excellent stability and low power consumption. However, previous implementations rely solely…

Here we identify a new form of optomechanical coupling in gas-filled hollow-core fibers. Stimulated forward Brillouin scattering is observed in air in the core of a photonic bandgap fiber. A single resonance is observed at 35 MHz, which…

Optics · Physics 2016-07-19 William H. Renninger , Ryan O. Behunin , Peter T. Rakich

Absorption of ultrashort laser pulses in a metallic grating deposited on a transparent sample launches coherent compression/dilatation acoustic pulses in directions of different orders of acoustic diffraction. Their propagation is detected…

Applied Physics · Physics 2018-02-14 Osamu Matsuda , Thomas Pezeril , Ievgeniia Chaban , Kentaro Fujita , Vitalyi Gusev

Phase-contrast microscopy converts the optical phase introduced by transparent, unlabeled specimens into modulation in the intensity image. Modern phase imaging techniques are capable of quantifying phase shift at each point in the field of…

Magnons, the quanta of spin waves, are magnetic excitations of matter spanning through the entire crystal's Brillouin zone and covering a wide range of frequencies ranging from sub-gigahertz to hundreds of terahertz. Magnons play a crucial…

Mesoscale and Nanoscale Physics · Physics 2025-02-07 Jakub Krčma , Ondřej Wojewoda , Martin Hrtoň , Jakub Holobrádek , Jon Ander Arregi , Jaganandha Panda , Michal Urbánek

In the well-known stimulated Brillouin scattering (SBS) process, spontaneous acoustic phonons in materials are stimulated by laser light and scatter the latter into a Stokes sideband. SBS becomes more pronounced in optical fibers and has…

Optics · Physics 2019-05-13 Qiyu Liu , Huan Li , Mo Li

We propose a scheme to generate low driving threshold quantum correlations in Brillouin optomechanical system based on synthetic magnetism. Our proposal consists of a mechanical (acoustic) resonator coupled to two optical modes through the…

Quantum Physics · Physics 2024-09-04 D. R. K. Massembele , P. Djorwé , K. B. Emale , Jia-Xin Peng , A. -H. Abdel-Aty , K. S. Nisar

Brillouin-based optomechanical systems with high-frequency acoustic modes provide a promising platform for implementing quantum-information processing and wavelength conversion applications, and for probing macroscopic quantum effects.…

Time- and angle-resolved photoemission spectroscopy has played an important role in revealing the non-equilibrium electronic structures of solid-state materials. The implementation of high harmonic generation to obtain a higher photon…

Strongly Correlated Electrons · Physics 2022-06-29 Takeshi Suzuki , Shik Shin , Kozo Okazaki

Coherent optomechanical interaction between acoustic and optical waves known as stimulated Brillouin scattering (SBS) can enable ultra-high resolution signal processing and narrow linewidth lasers important for next generation wireless…

Second-order nonlinear optical interactions such as sum- and difference-frequency generation are widely used for bioimaging and as selective probes of interfacial environments. However, inefficient nonlinear optical conversion often leads…

Optics · Physics 2015-05-07 Aaron J. Goodman , William A. Tisdale

Mounting evidence connects the biomechanical properties of tissues to the development of eye diseases such as keratoconus, a common disease in which the cornea thins and bulges into a conical shape. However, measuring biomechanical changes…

Quantitative Methods · Quantitative Biology 2018-02-06 Peng Shao , Amira M. Eltony , Theo G. Seiler , Behrouz Tavakol , Roberto Pineda , Tobias Koller , Theo Seiler , Seok-Hyun Yun

We report a theoretical study of Stimulated Brillouin Scattering (SBS) in general anisotropic media, incorporating the effects of both acoustic strain and local rotation in all calculations. We apply our general theoretical framework to…

Optics · Physics 2019-03-27 M. J. A. Smith , C. Wolff , C. G. Poulton , C. M. de Sterke

Recent advances in design and fabrication of photonic-phononic waveguides have enabled stimulated Brillouin scattering (SBS) in silicon-based platforms, such as under-etched silicon waveguides and hybrid waveguides. Due to the sophisticated…

Recent years witnessed much broader use of Brillouin inelastic light scattering spectroscopy for the investigation of phonons and magnons in novel materials, nanostructures, and devices. Driven by developments in instrumentation and the…

Applied Physics · Physics 2020-11-18 Fariborz Kargar , Alexander A. Balandin

Narrow linewidth visible light lasers are critical for atomic, molecular and optical (AMO) applications including atomic clocks, quantum computing, atomic and molecular spectroscopy, and sensing. Historically, such lasers are implemented at…

Brillouin light scattering (BLS) spectroscopy is an effective method for detecting spin waves in magnetic thin films and nanostructures. While it provides extensive insight into the properties of spin waves, BLS spectroscopy is impeded in…

Optics · Physics 2024-04-24 Valeri Lozovski , Andrii V. Chumak

Purpose: Spectral imaging is a method in medical x-ray imaging to extract information about the object constituents by the material-specific energy dependence of x-ray attenuation. The authors have investigated a photon-counting spectral…

Medical Physics · Physics 2021-01-21 Erik Fredenberg , Magnus Hemmendorff , Bjorn Cederstrom , Magnus Aslund , Mats Danielsson

This study investigates the mechanical properties of colon cancer cells through Brillouin microscopy, focusing on the differentiation between wild-type (WT) and CRISPR-modified cells. Brillouin microspectroscopy, a non-invasive technique,…

Biological Physics · Physics 2025-07-09 Mykyta Kizilov , Vsevolod Cheburkanov , Vladislav V. Yakovlev

Brillouin scattering in optical fibres is a fundamental interaction between light and sound with important implications ranging from optical sensors to slow and fast light. In usual optical fibres, light both excites and feels shear and…

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