A theory of acoustic scattering of light in a Fabry-Perot resonator is described. The theory predicts the optimum acoustic scattering frequencies, the acoustic bandwidth, and the scattering enhancements as a function of the cavity geometry. The calculation is based on the formalism developed by ...
time-resolved mechanical response of the suspended structures. We refer to the portions of the 2D structures undergoing optically-generated thickness-mode vibrations as “acoustic cavities,” and consider these as an extension of the trapped energy resonator...
This paper describes a diaphragm-based external Fabry-Perot interferometric (EFPI) fiber acoustic sensor with pressure-isolation structure. The structure m... Z Huang,J Deng,P Wei,... - Proceedings of SPIE - The International Society for Optical Engineering 被引量: 5发表: 2004年 Highly sensitiv...
(c). Each unit cell can be regarded as a Fabry–Perot (FP) resonator, inside which the wave oscillates back and forthLtimes before reaching a resonance condition that determines the reflection or transmission. The higher order diffraction depends on the propagation numberLand the numbermof unit ...
专利名称:ACOUSTIC OPTIC ISOLATOR 发明人:JOHN STUART HEEKS,JOHN DAVID JACKSON 申请号:AU8985282 申请日:19821028 公开号:AU8985282A 公开日:19830512 专利内容由知识产权出版社提供 摘要:An acousto-optic isolator for a semiconductor laser diode D comprises a Fabry-Perot resonator R tuned to the laser...
We report an all-optical fiber photoacoustic gas sensor with a graphene nano-mechanical resonator as the acoustic detector. The acoustic detector is a Fabry–Perot interferometer formed by attaching a 100-nm-thick, 2.5-mm-diameter multilayer graphene diaphragm to a hollow cavity at the end of a...
Stabilization of a fiber Fabry–Perot interferometric acoustic wave sensor Control of the operating point of an interferometric optical sensor to produce the highest sensitivity is crucial in the demodulation of interferometric op... J Chen,W Li,H Jiang,... - Optik - International Journal for Ligh...
The broadband probe light generated by the SLD is injected into the Fabry-Perot cavity of the fiber-optic microphone through a circulator, and the corresponding interference spectrum are received by the high-speed spectrometer and demodulated by a digital lock-in amplifier to acquire the ...
the Fabry-Perot resonances can be excited inside the tubes to achieve high transmission efficiency27. Based on those facts, we construct the acoustic binary phase grating in our system with a straight channel of length 17.5 mm (aroundλ0/2) and a curved channel with wave path length of ...
The propagating SAW is confined to a small region of the chip between two Bragg mirrors facing each other forming a Fabry–Perot acoustic cavity; each mirror consists of a regular array of shorted metallic strips. A tuneable transmon qubit is situated in the middle of the SAW cavity and ...