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It is shown here that Brillouin amplification can be used to produce picosecond pulses of petawatt power. Brillouin amplification is far more resilient to fluctuations in the laser and plasma parameters than Raman amplification, making it…

Stimulated Raman scattering (SRS) microscopy has emerged as a powerful technique for probing the spatiotemporal dynamics of molecular bonds with exceptional sensitivity, resolution, and speed. However, classically, its performance remains…

A microwave photonic short-time Fourier transform (STFT) system based on stabilized period-one (P1) nonlinear laser dynamics and stimulated Brillouin scattering (SBS) is proposed. By using an optoelectronic feedback loop, the…

Optics · Physics 2024-04-18 Sunan Zhang , Taixia Shi , Lizhong Jiang , Yang Chen

We report the first-ever experimental observation of backward stimulated Brillouin scattering (SBS) in thin-film lithium niobate (TFLN) waveguides. The peak Brillouin gain coefficient of the z-cut LN waveguide with a crystal rotation angle…

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

A photonic-assisted multiple radio frequency (RF) measurement approach based on stimulated Brillouin scattering (SBS) and frequency-to-time mapping with high accuracy and high-frequency resolution is reported. A two-tone signal is…

Signal Processing · Electrical Eng. & Systems 2021-08-04 Taixia Shi , Yang Chen

Rapid detection of bacterial growth is crucial in clinical, food safety, and environmental contexts, yet conventional optical methods are limited by noise and require hours of incubation. Here, we present the first experimental…

The application of Brillouin light scattering to the study of the spin-wave spectrum of one- and two-dimensional planar magnonic crystals consisting of arrays of interacting stripes, dots and antidots is reviewed. It is shown that the…

Materials Science · Physics 2015-05-18 G. Gubbiotti , S. Tacchi , M. Madami , G. Carlotti , A. O. Adeyeye , M. Kostylev

Material damage thresholds pose a fundamental limit to chirped pulse amplification (CPA) in high-power laser systems. Plasma-based amplification via stimulated Brillouin scattering (SBS) offers a damage-free alternative, yet its…

The notion that Stimulated Brillouin Scattering (SBS) is primarily defined by bulk material properties has been overturned by recent work on nanoscale waveguides. It is now understood that boundary forces of radiation pressure and…

Optics · Physics 2015-10-21 Nathan Dostart , Seunghwi Kim , Gaurav Bahl

Brillouin spectroscopy emerges as a promising non-invasive tool for nanoscale imaging and sensing. One-dimensional semiconductor superlattice structures are eminently used for selectively enhancing the generation or detection of phonons at…

Brillouin microscopy is an emerging optical technique for probing mechanical properties with submicron resolution, offering fully non-contact, label-free operation. Despite its unique capabilities, broader adoption has been limited by slow…

Optics · Physics 2026-04-22 Mikolaj Pochylski

On-chip stimulated Brillouin scattering (SBS) has recently been demonstrated in thin-film lithium niobate (TFLN), an emerging material platform for integrated photonics offering large electro-optic and nonlinear properties. While previous…

A previous inelastic UV scattering experiment on silica glass is reproduced using a high grade superpolished sample. In the pristine sample condition, surface scattering is not observable compared to Rayleigh scattering from the bulk.…

Materials Science · Physics 2011-10-21 B. Rufflé , E. Courtens , M. Foret

As self-sustained oscillators, lasers possess the unusual ability to spontaneously synchronize. These nonlinear dynamics are the basis for a simple yet powerful stabilization technique known as injection locking, in which a laser's…

Brillouin spectroscopy was used to probe the viscoelastic properties of E. coli bacterial cell lysate in aqueous solution at GHz-frequencies over the range -5.0 $^\circ$C $\leq T \leq$ 50.0 $^\circ$C. This work offers a first temperature…

Soft Condensed Matter · Physics 2023-11-13 D. F. Hanlon , S. Heravi , V. Booth , G. T. Andrews

High coherence lasers are essential in a wide range of applications, however, such performance is normally associated with large laser cavities, because increasing energy storage reduces quantum phase noise and also renders the laser…

Optics · Physics 2012-01-23 Jiang Li , Hansuek Lee , Tong Chen , Oskar Painter , Kerry Vahala

High-resolution Brillouin scattering is used to achieve 3-dimensional maps of the longitudinal acoustic mode frequency shift in soda-lime silicate glasses subject to Vickers indentations. Assuming that residual stress-induced effects are…

Materials Science · Physics 2012-06-11 H. Tran , S. Clément , R. Vialla , D. Vandembroucq , B. Rufflé

Stimulated Brillouin scattering (SBS) offers among the highest nonlinear gains in solid materials and has demonstrated advanced photonics functionalities in waveguides. The large compressibility of gases suggests that SBS may gain in…

Optics · Physics 2020-12-22 Fan Yang , Flavien Gyger , Luc Thévenaz

We report a comprehensive experimental study of spontaneous Brillouin scattering in a few-mode optical fiber, resolving both forward and backward scattering processes for intra- and inter-modal interactions. Using heterodyne detection,…

Optics · Physics 2026-01-13 Hikari Kikuchi , Rekishu Yamazaki
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