Topic
Brillouin scattering
About: Brillouin scattering is a research topic. Over the lifetime, 11426 publications have been published within this topic receiving 178306 citations.
Papers published on a yearly basis
Papers
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TL;DR: A high Q-factor photonic microwave filter showing tuning and reshaping capabilities and based on stimulated Brillouin scattering is demonstrated, demonstrating the wide tuning range of the filter, its reshaping capability, and Q factor of 670.
Abstract: A high Q-factor photonic microwave filter showing tuning and reshaping capabilities and based on stimulated Brillouin scattering is demonstrated. The filter bandpass can be continuously tuned, changing the microwave oscillator used to generate the pump power, and the filter shape can be modified by modulating the microwave tone. A single bandpass over the microwave spectrum can be obtained by using single-sideband suppressed carrier modulation. Experimental results demonstrate the wide tuning range of the filter, its reshaping capability, and Q factor of 670.
145 citations
TL;DR: In this paper, the authors focus on Rayleigh-based distributed optical fiber sensors, which are based on the scattering processes that originate from the interaction between light and matter, and provide unprecedented features, such as the ability of monitoring varia- tions of the observed physical field with spatial continuity along the fiber.
Abstract: Optical fiber sensors offer unprecedented features, the most unique of which is the ability of monitoring varia- tions of the observed physical field with spatial continuity along the fiber. These distributed optical fiber sensors are based on the scattering processes that originate from the interaction between light and matter. Among the three different scatter- ing processes that may take place in a fiber—namely Rayleigh, Raman and Brillouin scattering, this paper focuses on Rayleigh-based distributed optical fiber sensors. For a given optical frequency, Rayleigh-based sensors exploit the three main properties of light: intensity, phase and polarization. All these sensing mechanisms are reviewed, along with basic principles, main acquisition techniques and fields of application. Emphasis, however, will be put on polarization-based distributed optical fiber sensors. While they currently represent a niche, they offer promising unique features worth being considered in greater detail.
145 citations
TL;DR: A novel shape-adjustable narrowband optical filter utilizing stimulated Brillouin scattering in an optical fiber is proposed and demonstrated and a tunable optical notch filter is also realized by deamplification of the anti-Stokes wave.
Abstract: A novel shape-adjustable narrowband optical filter utilizing stimulated Brillouin scattering in an optical fiber is proposed and demonstrated. In this scheme, binary-phase-shift-keying modulation is applied to the pump wave to broaden and shape the Brillouin gain spectrum. By choosing an appropriate modulation data pattern, we realized a flat-top steep-cutoff optical bandpass filter with a 3-dB bandwidth of 1.5 GHz and a 10-dB bandwidth of 2 GHz is realized. In addition, a tunable optical notch filter is also realized by deamplification of the anti-Stokes wave.
145 citations
TL;DR: In this paper, a new technique called picosecond interferometry is proposed for the study of phonons in the Brillouin frequency range in transparent materials, which makes possible the measurement of longitudinal phonon velocity and attenuation under conditions such that the conventional approach is not applicable.
144 citations
Book•
01 Aug 2003TL;DR: In this article, the authors discuss the effects of low power/energy levels on the performance of a conducting surface and the effect of delectric coating on dielectric coatings.
Abstract: Glossary of Terms OPTICAL EFFECTS AT LOW POWER/ENERGY LEVELS Introduction Electromagnetic Theory Dispoersion Reflectance and Transmittance Reflectance and Absortance of a Conducting Surface Molecular Polarizability Absorption Scatter Analysis of R, T, A and S Measurements OPTICAL EFFECTS AT MEDIUM POWER/ENERGY LEVELS Introduction Absorption Raman Scattering Brillouin Scattering Harmonic Generation Self-Focusing DAMAGE THEORY Introduction Thermal Mechanisms Dielectric Processes Testing Regimes Time of Damage Damage Morphology SURFACES AND SUB-SURFACES Introduction Surfaces Sub-Surface COATINGS Introduction Coating Technology Measurements and Morphology of Coated Surfaces Coating Design Damage to Dielectric Coatings SPECIAL TOPICS Ambient Atmosphere/Gases Liquids Photodetectors Fibre Optics Scaling Laws Significance of the Units of Measurement MEASUREMENT TECHNIQUES Introduction Measurement of Power, Power Density, Energy, and Energy Density Laser-Induced Damage Threshold Measurement of Optical Characteristics Surface Measurement and Specification Other Measurements APPENDICES References Index
144 citations