Hostname: page-component-89b8bd64d-shngb Total loading time: 0 Render date: 2026-05-08T07:22:33.938Z Has data issue: false hasContentIssue false

Transient grating spectroscopy: An ultrarapid, nondestructive materials evaluation technique

Published online by Cambridge University Press:  09 May 2019

Felix Hofmann
Affiliation:
Department of Engineering Science, University of Oxford, UK; felix.hofmann@eng.ox.ac.uk
Michael P. Short
Affiliation:
Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, USA; hereiam@mit.edu
Cody A. Dennett
Affiliation:
Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, USA; cdennett@mit.edu
Get access

Abstract

Structure–property relationships are the foundation of materials science and are essential for predicting material response to driving forces, managing in-service material degradation, and engineering materials for optimal performance. Elastic, thermal, and acoustic properties provide a convenient gateway to directly or indirectly probe materials structure across multiple length scales. This article will review how using the laser-induced transient grating spectroscopy (TGS) technique, which uses a transient diffraction grating to generate surface acoustic waves and temperature gratings on a material surface, nondestructively reveals the material’s elasticity, thermal diffusivity, and energy dissipation on the sub-microsecond time scale, within a tunable subsurface depth. This technique has already been applied to many challenging problems in materials characterization, from analysis of radiation damage, to colloidal crystals, to phonon-mediated thermal transport in nanostructured systems, to crystal orientation and lattice parameter determination. Examples of these applications, as well as inferring aspects of microstructural evolution, illustrate the wide potential reach of TGS to solve old materials challenges and to uncover new science. We conclude by looking ahead at the tremendous potential of TGS for materials discovery and optimization when applied in situ to dynamically evolving systems.

Information

Type
Acoustic Processes in Materials
Copyright
Copyright © Materials Research Society 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable