Topic
Brillouin scattering
About: Brillouin scattering is a research topic. Over the lifetime, 11426 publications have been published within this topic receiving 178306 citations.
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TL;DR: In this article, the authors refer to these spontaneous surface structures as "stimulated Wood's anomalies" and describe a growth process analogous to stimulated Brillouin or Raman scattering or small-scale self focusing.
Abstract: Spontaneous, highly periodic, often permanent surface gratings or "ripples" can develop on the surface of almost any solid or liquid material illuminated by a single laser beam of sufficient intensity, under either pulsed or CW conditions. The grating periods are such that the incident laser beam is diffracted into a tangential wave which skims just along or under the illuminated surface. These spontaneously appearing surface ripples are generated by a runaway growth process analogous to stimulated Brillouin or Raman scattering or small-scale self focusing, but having many of the same properties as Wood's anomalies in diffraction gratings. Hence, it seems appropriate to refer to these spontaneous surface structures as "stimulated Wood's anomalies."
216 citations
Journal Article•
TL;DR: In this article, the Assistant Secretary of Defense for Research & Engineering (AODE) contract FA8721-05-C-000 was used to evaluate the performance of an Air Force FPGA.
Abstract: United States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (Air Force Contract FA8721-05-C-000)
213 citations
TL;DR: The Brillouin optical time-domain reflectometer (BOTDR) as mentioned in this paper is a distributed optical fiber strain sensor whose operation is based on Brillour scattering, and BOTDR equipment has been developed for practical use in the field of civil engineering.
211 citations
NEC1
TL;DR: In this article, the authors investigated SBS gain and threshold characteristics with amplitude-shift-keying (ASK), frequency-shift keying (FSK), and phase-shiftkeying modulated lights to estimate the input power limitation.
Abstract: Stimulated Brillouin scattering (SBS) limits the optical power that can be transmitted through a single-mode fiber in long-distance optical communication systems, the authors have investigated SBS gain and threshold characteristics with amplitude-shift-keying (ASK), frequency-shift-keying (FSK), and phase-shift-keying (PSK) modulated lights to estimate the input power limitation set by SBS. It was shown that maximum fiber-input powers or the SBS thresholds for fixed-pattern (1010 . . .) ASK, FSK, and PSK modulated lights are 2, 4, and 2.5 times higher, respectively, than the threshold for unmodulated light. Theoretical predictions were experimentally verified by SBS gain measurements with FSK and PSK modulated lights. The first direct observation of SBS with FSK modulated light pumping is also described. >
210 citations
TL;DR: High-order transverse optical modes are relied on to relax this limitation and report the experimental excitation of mechanical resonances ranging from 49 to 1,400 MHz by using forward Brillouin scattering.
Abstract: Brillouin interactions between sound and light can excite mechanical resonances in photonic microsystems, with potential for sensing and frequency reference applications. The authors demonstrate experimental excitation of mechanical resonances ranging from 49 to 1,400 MHz using forward Brillouin scattering.
205 citations