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4 April 2005 Laser writing of nonlinear optical crystal lines in glass
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Laser-induced micro-fabrication has many advantages such as maskless, single-step and very fast processing compared with current techniques such as photolithography and reactive ion etching. Laser-induced crystallization is now a big challenge in glass materials. A new technique for the writing of crystal dots and lines in glass, called "samarium (rare-earth) atom heat processing", has been developed, and the writing of several crystal lines such as b-BaB2O4 (b-BBO), SmxBi1-xBO3, Sm2(MoO4)3, and KSm(PO3)4 showing second harmonic generations and ferroelectricities has been succeeded. It has been also demonstrated that two-dimensional crystal curved lines with bending angles of 0~90o or with sine-curve shapes can be written using the samarium atom heat processing. The features of this new technique and the quality of crystal lines have been clarified.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takayuki Komatsu, Rie Ihara, Yasuhiko Benino, and Takumi Fujiwara "Laser writing of nonlinear optical crystal lines in glass", Proc. SPIE 5723, Optical Components and Materials II, (4 April 2005);

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