We demonstrate fabrication of two-dimensional (2D) photonic crystal (PhC) structure inside the volume of SU-8 resist film by four beams interference. This structure, actually, is a 3D structure fabricated inside the film without sample scanning or laser beam steering. The mechanism of recording ill transparent, dielectrics is discussed in terms of third harmonic generation, white light continuum, and thermal emission by 'hot' electrons.
Proceedings of the SPIE ALT'02 International Conference on Advanced Laser Technologies, Adelboden, Switzerland, 15-20 September 2002 / Heinz P. Weber, Vitali I. Konov and Thomas Graf (eds.),
Vol. 5147, pp. 226-235