skip to main content

Title: Laser-induced transient grating setup with continuously tunable period

We present a modification of the laser-induced transient grating setup enabling continuous tuning of the transient grating period. The fine control of the period is accomplished by varying the angle of the diffraction grating used to split excitation and probe beams. The setup has been tested by measuring dispersion of bulk and surface acoustic waves in both transmission and reflection geometries. The presented modification is fully compatible with optical heterodyne detection and can be easily implemented in any transient grating setup.
Authors:
 [1] ;  [2] ; ; ;  [1] ; ; ;  [3] ;  [4]
  1. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  2. (Mexico)
  3. Department of Mechanical Engineering, University of Washington, Seattle, Washington 98195 (United States)
  4. Applied Physics Department, CINVESTAV-Unidad Mérida, Carretera Antigua a Progreso Km 6, Cordemex, Mérida, Yucatán 97310 Mexico (Mexico)
Publication Date:
OSTI Identifier:
22482626
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DIFFRACTION GRATINGS; EXCITATION; GEOMETRY; LASERS; MODIFICATIONS; SOUND WAVES; TRANSMISSION; TUNING