Yasuyuki OZEKI^*, Takehito KAWASUMI, and Kazuyoshi ITOH

Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan

(Received July 15, 2008; Accepted November 10, 2008)

We demonstrate that four-wave mixing (FWM) microscopy can visualize photoelastic effect with depth resolution. In a principle confirmation experiment, we use a bent optical fiber as a sample and show that the FWM signal changes proportionally to the applied stress with different signs for the two orthogonal linear polarizations of the excitation beam.

Key words: birefringence, photoelastic effect, four-wave mixing, microscopy

^*E-mail address: ozeki@mls.eng.osaka-u.ac.jp