Blue light emission from a laser diode pumped ring resonator with an organic second‐harmonic generation crystal of 8‐(4’‐acetylphenyl)‐1,4‐dioxa‐8‐azaspirol[4.5]decane
作者:
M. Sagawa,
H. Kagawa,
A. Kakuta,
M. Kaji,
M. Saeki,
Y. Namba,
期刊:
Applied Physics Letters
(AIP Available online 1995)
卷期:
Volume 66,
issue 5
页码: 547-549
ISSN:0003-6951
年代: 1995
DOI:10.1063/1.114008
出版商: AIP
数据来源: AIP
摘要:
A laser diode pumped ring resonator was built with a new organic second‐order nonlinear optical crystal, 8‐(4’‐acetylphenyl)‐1,4‐dioxa‐8‐azaspiro[4.5] decane. Ultraprecision diamond polishing was used for the crystal and optically flat surfaces and roughnesses of less than &lgr;/10 were achieved. The surfaces were dip coated with a perfluorinated polymer thin film to suppress surface reflection loss. Under resonant conditions, fundamental power was enhanced and a blue second‐harmonic emission with wavelength of 405.5 nm was observed. ©1995 American Institute of Physics.
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