Coherent acousto-optic tomography with diffuse light

Acousto-optic tomography with multiply scattered light

We have investigated the modulation of the optical field transmitted through a colloid of polystyrene spheres by a narrow quasi-cw ultrasound beam. Measurements of the scale dependence of the heterodyne modulation signal at the acoustic frequency are obtained for samples that are up to 140 scattering lengths thick. A calculation of the modulation signal predicts the possibility of tomographic i...

Acousto-optic-assisted diffuse optical tomography.

We introduce and experimentally demonstrate acousto-optic-assisted diffuse optical tomography (DOT) using a holography-based acousto-optic setup. The method is based on probing a scattering medium with a localized acoustical modulation of the phase of the scattered light. The optical properties of the scattering medium are recovered with ultrasound-limited resolution by applying DOT reconstruct...

Acousto-Optic Tunable Filters Spectrally Modulate Light

The development of opt electronic technology in the past two decades has intensified research on devices that control and manipulate optical radiation. Acousto-optic devices are based on acousto-optic effects in which the optical medium is altered by the presence of ultrasound. Examples of acousto-optic devices include optical modulators, deflectors, scanners, Q-switches, isolators, and frequen...

Acousto-optic collinear diffraction of arbitrary polarized light

Acousto - Optic Isolator ( Aoi )