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We report the observation of transient nonlinear optical effects in a macroscopic whispering gallery mode resonator made of rutile TiO$_2$, demonstrating strong optical-microwave transduction under laser irradiation. By comparing the…

Applied Physics · Physics 2025-03-13 Catriona A. Thomson , Michael E. Tobar , Maxim Goryachev

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

Over the past two decades there have been tremendous advances in high-power fiber lasers, which have provided a powerful tool for science, engineering and defense. A major roadblock for further power scaling of single-frequency fiber laser…

We develop a statistical theory of stimulated Brillouin backscatter (BSBS) of a spatially and temporally partially incoherent laser beam for laser fusion relevant plasma. We find a new collective regime of BSBS which has a much larger…

Plasma Physics · Physics 2011-05-12 Alexander O. Korotkevich , Pavel M. Lushnikov , Harvey A. Rose

Microfocused Brillouin light scattering (BLS) and microwave absorption (MA) are used to study magnon-photon coupling in a system consisting of a split-ring microwave resonator and a yttrium iron garnet (YIG) film. The split-ring resonantor…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 Stefan Klingler , Hannes Maier-Flaig , Rudolf Gross , Can-Ming Hu , Hans Huebl , Sebastian T. B. Goennenwein , Mathias Weiler

The effects of a frequency-modulated pump on stimulated Brillouin scattering (SBS) in a flowing plasma are investigated by theoretical analysis, three-wave simulations, and kinetic simulations. The resonance point of SBS oscillates in a…

Plasma Physics · Physics 2024-01-09 Y. Chen , C. Y. Zheng , Z. J. Liu , L. H. Cao , C. Z. Xiao

Plasma-based parametric amplification using stimulated Brillouin scattering offers a route to coherent x-ray pulses orders-of-magnitude more intense than those of the brightest available sources. Brillouin amplification permits…

Plasma Physics · Physics 2017-08-30 Matthew R. Edwards , Julia M. Mikhailova , Nathaniel J. Fisch

Lithium tetraborate (LB4) is a lithium borate compound and recently has shown renewed interest due to its exceptional linear and nonlinear optical properties. Its wide transparency range, spanning from 0.16$\mu m$ to 3.5$\mu m$, and low…

We demonstrate a miniature self-injection locked DFB laser using resonant optical feedback from a high-Q crystalline whispering gallery mode resonator. The linewidth reduction factor is greater than 10,000, with resultant instantaneous…

Optics · Physics 2016-04-13 W. Liang , V. S. Ilchenko , A. A. Savchenkov , A. B. Matsko , D. Seidel , L. Maleki

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

This paper explores the integration of cross-polarized stimulated Brillouin scattering (XP-SBS) with Kerr and quadratic nonlinearities in lithium niobate (LN) to enhance photonic device performance. Three novel applications are…

Optics · Physics 2024-05-28 Mingming Nie , Jonathan Musgrave , Shu-Wei Huang

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

We report the first observation of above-threshold maser oscillation in a whispering-gallery(WG)-mode resonator, whose quasi-transverse-magnetic, 17th azimuthal-order WG mode, at a frequency of approx. 12.038 GHz, with a loaded Q of several…

Quantum Physics · Physics 2009-11-11 P. -Y. Bourgeois , N. Bazin , Y. Kersale , V. Giordano , M. E. Tobar , M. Oxborrow

We develop a statistical theory of stimulated Brillouin backscatter (BSBS) of a spatially and temporally partially incoherent laser beam for laser fusion relevant plasma. We find a new collective regime of BSBS (CBSBS) with intensity…

Plasma Physics · Physics 2022-06-03 Alexander O. Korotkevich , Pavel M. Lushnikov , Harvey A. Rose

We demonstrate laser frequency stabilization using a high-Q MgF2 crystalline whispering gallery mode resonator coupled with a tapered fiber. We discovered that the tapered fiber, acting as a microcantilever, exhibits mechanical resonance…

Optics · Physics 2023-12-06 Yaohui Xu , Xiaolan Liu , Wujun Li , Haotian Wang , Jun Guo , Jie Ma , Jianing Zhang , Deyuan Shen

Laser linewidth is of central importance in spectroscopy, frequency metrology and all applications of lasers requiring high coherence. It is also of fundamental importance, because the Schawlow-Townes laser linewidth limit is of quantum…

Optics · Physics 2017-10-11 Myoung-Gyun Suh , Qi-Fan Yang , Kerry Vahala

Stimulated Brillouin scattering in optical waveguides is a fundamental interaction between light and acoustic waves mediated by electrostriction and photoelasticity. In this paper, we revisit the usual theory of this inelastic scattering…

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…

Guided Acoustic Wave Brillouin Scattering (GAWBS) generates phase and polarization noise of light propagating in glass fibers. This excess noise affects the performance of various experiments operating at the quantum noise limit. We…

Quantum Physics · Physics 2007-05-23 D. Elser , U. L. Andersen , A. Korn , O. Gloeckl , S. Lorenz , Ch. Marquardt , G. Leuchs

We address the problem of the interaction of powerful laser radiation with a transparent substance containing a low concentration of strongly absorbing nanoparticles under the condition of Stimulated Brillouin scattering (SBS) whose…