Abstract

Frequency doubling of infrared coherent radiation in a planar waveguide loaded by an organic thin film is described. By using a strongly nonlinear crystal, such as 2-methyl-4-nitroaniline, as the loading organic material, more second-harmonic radiation can be expected than that reported in a proton-exchanged or Ti-diffused LiNbO₃ waveguide. The electromagnetic field analysis shows that the selection of a cover material that bounds the surface of the organic film is important in fulfilling the Čerenkov condition.

© 1990 Optical Society of America

Cerenkov-radiation and guided-mode blue second-harmonic generation in four-layer waveguides using organic thin-film crystals

H. Yamamoto, T. Sugiyama, J. Jung, T. Kinoshita, and K. Sasaki
J. Opt. Soc. Am. B 14(7) 1831-1837 (1997)

Grating axicon for collimating Čerenkov radiation waves

G. Hatakoshi, M. Kawachi, K. Terashima, Y. Uematsu, A. Amano, and K. Ueda
Opt. Lett. 15(23) 1336-1338 (1990)

Čerenkov-type second-harmonic generation in thin planar calix[4]arene waveguiding films

O. F. J. Noordman, N. F. van Hulst, and B. Bölger
J. Opt. Soc. Am. B 12(12) 2398-2405 (1995)

Three-dimensional simulation of guided-wave second-harmonic generation in the form of coherent Čerenkov radiation

K. Hayata and M. Koshiba
Opt. Lett. 16(20) 1563-1565 (1991)

Near-infrared refractometry of liquids by means of waveguide Čerenkov second-harmonic generation

Roberta Ramponi, Roberto Osellame, Marco Marangoni, and Vera Russo
Appl. Opt. 37(33) 7737-7742 (1998)