WebTHE DEBYE-SEARS EFFECT. In 1932, Debye and Sears for the first time demonstrated the refraction of light as it passed through a liquid being subjected to high-frequency vibrations. In this process, the density maxima and minima of a stationary ultrasonic wave act like the elements of an optical diffraction grating. The grating constant here is ... WebIn 1932, Debye and Sears showed that light experiences a diffraction when passing through a liquid excited to high-frequency vibrations. Ultrasound can be made more or less “visible” using this effect.

Ultrasonic imaging using Debye-Sears diffraction of light

WebDer Debye-Sears-Effekt, benannt nach den Physikern Peter Debye und Francis Sears, ermöglicht eine sehr genaue Bestimmung der Schallgeschwindigkeit in Medien auf Basis der Wellenoptik. WebDebye-Sears Effect (Ultrasound Experimental Set 5) Introduction into acousto-optics and the use of continuously emitted ultrasonic waves with imaging of a standing ultrasonic wave field using laser light. … himos mökit nettimökki

Acoustics - 3B Scientific

WebSep 13, 2024 · Debye-Sears effect. The time-averaged theories, used previously for the description of Kapitza-Dirac scattering, are shown to be inadequate. 1. Introduction With the advent of powerful lasers the theoretical and experimental investigation of the elastic scattering of electrons by a standing light wave, known as the Kapitza-Dirac ... WebOne of the interesting explorations is the Debye-Sears effect, the diffraction of light from a 3-d acoustic grating created by an ultrasonic standing wave. Fig.5: Debye-Sears set up … WebThe Debye-Sears Effect In 1932, Debye and Sears for the first time demonstrated the refraction of light as it passed through a liquid being subjected to high-frequency vibrations. In this process, the density maxima and minima of a stationary ultrasonic wave act like the elements of an optical diffraction grating. himos metalli