Quantitative characterization of material inhomogeneities by thermal waves

Uwe R. Seidel; Ton Thi Ngoc Lan; Heinz-Guenter Walther; Bernhard Schmitz; Jurgen Geerkens; Gert Goch

doi:10.1117/1.601235

1 February 1997 Quantitative characterization of material inhomogeneities by thermal waves

Uwe R. Seidel; Ton Thi Ngoc Lan; Heinz-Guenter Walther; Bernhard Schmitz; Jurgen Geerkens; Gert Goch

Author Affiliations +

Optical Engineering, 36(2), (1997). doi:10.1117/1.601235

Abstract

Photothermal measurement techniques offer the possibility to determine thermal properties on and below the sample’s surface. Thus, subsurface thermal inhomogeneities such as defects, buried structures, and continuous profiles of thermal parameters become accessible by photothermal means. Our special interest is focused on the quantitative characterization of material modifications in near-surface layers that are induced by thermal (such as hardening) or mechanical (such as grinding) treatments of the surface as well as the reconstruction of a subsurface structure’s depth, size, and defect strength. Altogether, these investigations are aimed to develop photothermal techniques toward a true quantitative and noncontact inspection method for the nondestructive evaluation of opaque solids.

Citation Download Citation

Uwe R. Seidel, Ton Thi Ngoc Lan, Heinz-Guenter Walther, Bernhard Schmitz, Jurgen Geerkens, Gert Goch, "Quantitative characterization of material inhomogeneities by thermal waves," Optical Engineering 36(2), (1 February 1997). https://doi.org/10.1117/1.601235

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $20.00

Non-members: $25.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years