J. Phys. IV France 01 (1991) C7-749-C7-752
SECOND HARMONIC GENERATION FROM ORGANIC OPTICAL WAVEGUIDES ON DIFFRACTION GRATINGSM. KULL1, J.L. COUTAZ2 and R. MEYRUEIX3
1 Department of Physics II, The Royal Institute of Technology, S-100 44 Stockholm, Sweden
2 LEMO-URA CNRS 833, ENSERG, BP. 257, F-38016 Grenoble cedex, France
3 Flamel Technologies, 33 avenue Dr. Levy, F-69693 Vénissieux cedex, France
We present experimental results of second harmonic generation using a waveguide of PUSC deposited on a silver diffraction grating. The reflected second harmonic signal is enhanced at the angles of resonant excitation of the guided modes or of the surface plasmon. At these angles, we observe unexpected minima in the second harmonic signal, when the second harmonic frequency is situated within the absorption range of PUSC.
© EDP Sciences 1991