A reproducible method for growing nonlinear optical organic crystals (DAST) and excimer laser processing of DAST

Author

Young-mok Son ; Ohsaki, N. ; Ito, H.

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

fYear

2001

fDate

11-11 May 2001

Firstpage

59

Lastpage

60

Abstract

Summary form only given. The organic nonlinear optical crystal DAST (4-dimethylamino-N-methyl-4-stilbazolium tosylate) has higher nonlinearities (such as the electro-optical and second-order nonlinear optical coefficients) than other similar crystals. This has sparked significant efforts to develop a crystal growth processing method and to use DAST in various optical devices. We investigated a reproducible crystal growth method that monitors the conductivity of the concentration of a saturated DAST solution. We also developed a processing method using KrF excimer laser ablation.

Keywords

crystal growth from solution; laser ablation; laser beam etching; optical fabrication; optical harmonic generation; optical materials; organic compounds; 4-dimethylamino-N-methyl-4-stilbazolium tosylate; DAST organic nonlinear optical crystal; etched depth; etching behavior; excimer laser ablation; flexible patterning; high quality crystals; relatively large crystal; reproducible crystal growth method; second harmonic generation; uniform concentration; Conductivity; Crystals; Etching; Laser ablation; Laser beam cutting; Methanol; Nonlinear optics; Optical films; Optical saturation; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947461

Filename

947461