Embryonic Nucleation Method for Fabrication of Uniform Periodically Poled Structures in Potassium Niobate for Wavelength Conversion Devices

Autor:	Hiroyuki Kamio, Shiro Shichijyo, Kazuhiro Yamada, Junji Hirohashi
Rok vydání:	2004
Předmět:	Fabrication Materials science Potassium niobate Physics and Astronomy (miscellaneous) business.industry Poling General Engineering Nucleation General Physics and Astronomy Photorefractive effect Laser law.invention Wavelength chemistry.chemical_compound Optics chemistry law Periodic poling business
Zdroj:	Japanese Journal of Applied Physics. 43:559-566
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.43.559
Popis:	A new electric poling concept called the `embryonic nucleation method' for the fabrication of periodically poled structures has been proposed. By applying this method to KNbO3, 1-mm-thick uniform periodically poled KNbO3 (PPKN) with domain inverted period of 35.5 µm and an interaction length of 10 mm has been successfully fabricated by applying only 300 V/mm without the generation of unwanted domains. Furthermore, the reproducibility of the periodic poling process has been greatly improved. SHG using PPKN fabricated by this method was demonstrated and 100 mW second-harmonic laser generation at a wavelength of 532 nm was obtained from 1 W pumping without photorefractive damage at approximately 40°C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b2ac926025b139bd3c996e7cd283d5ea https://doi.org/10.1143/jjap.43.559 Zobrazit plný text záznamu