Full-field acoustomammography using an acousto-optic sensor

Pulse Measurement Techniques Using an Acousto-Optic Programmable Dispersive Filter

Programmable spectral filters, such as acousto-optic programmable dispersive filters (AOPDF, Tournois (1997)) or spatial light modulators inserted in the Fourier plane of zerodispersion lines (Froehly et al., 1983; Weiner, 2000), have opened up the field of ultrafast pulse shaping and given the ability to manipulate spectral amplitude and phase of broadband ultrashort pulses. These devices have...

Acousto - Optic Isolator ( Aoi )

Random depth access full-field heterodyne low-coherence interferometry utilizing acousto-optic modulation and a complementary metaloxide semiconductor camera.

With analog scanning, time-domain low-coherence interferometry lacks precise depth information, and optical carrier generation demands a linear scanning speed. Full-field heterodyne low-coherence interferometry that uses a logarithmic complementary metal-oxide semiconductor camera, acousto-optic modulation, and digital depth stepping is reported, with which random regions of interest, lateral a...

Acousto-optic superlattice modulator using a fiber Bragg grating.

A modulator is reported in which an extensional acoustic wave is launched along a fiber Bragg grating. The acousto-optic superlattice effect causes an enhancement in reflectivity within a narrow spectral region on both sides of the Bragg wavelength. For a fixed acoustic propagation direction, the Doppler shift can be either positive or negative, depending on whether the wavelength of the incide...

Polarization-independent imaging with an acousto-optic tandem system.

We propose a method for filtering convergent light beams with arbitrary polarization. For this purpose, a tandem of similar acousto-optic tunable filters was applied. Owing to the special mutual orientation of the cells, two coincident beams with ordinary and extraordinary polarizations were diffracted by the first crystal and the second crystal, respectively.