Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

The generation and the detection of ultrasound at distance by lasers present many advantages over conventional piezo-electric based methods. In particular, it can be used on surfaces of complex geometry and on products at elevated temperature on a production line [1,2]. Detection has been so far usually performed by using interferometers with passive elements, the most useful being the confocal Fabry-Perot interferometer used in a transmission or reflection mode. [1,3–5].

Volume

14B

Chapter

Chapter 8: NDE Systems, Reliability, and Transferability

Section

NDE Systems

Pages

2245-2251

DOI

10.1007/978-1-4615-1987-4_287

Language

en

File Format

application/pdf

Share

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Jan 1st, 12:00 AM

Ultrasonic Detection System Based on Two-Wave Mixing in Photorefractive Gaas Crystal

Snowmass Village, CO

The generation and the detection of ultrasound at distance by lasers present many advantages over conventional piezo-electric based methods. In particular, it can be used on surfaces of complex geometry and on products at elevated temperature on a production line [1,2]. Detection has been so far usually performed by using interferometers with passive elements, the most useful being the confocal Fabry-Perot interferometer used in a transmission or reflection mode. [1,3–5].