Title:
COLOR CENTER-CONTAINING MAGNESIUM OXIDE AND THIN FILM OF SAME, WAVELENGTH-VARIABLE LASER MEDIUM, LASER DEVICE, AND LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/024447
Kind Code:
A2
Abstract:
Provided is a color center laser medium that is a wide-spectrum laser medium with a laser oscillation wavelength band that ranges from a near-ultraviolet region, with a shorter wavelength than that of a conventional laser medium utilizing color centers, to the visible region, and that is capable of operating at room temperature without requiring a laser cavity and liquid nitrogen cooling. The color center-containing magnesium oxide is created by means of a solid-phase reaction between silicon monoxide (SiO), boron trioxide (B2O3), or ferric oxide (Fe2O3) and metallic magnesium. The wavelength-variable laser medium then utilizes color centers (color center) in the magnesium oxide created by the solid-phase reaction. More specifically, silicon monoxide and metallic magnesium are heated for several hours in an argon atmosphere at a prescribed temperature in order to obtain a magnesium oxide sublimate. Laser oscillation occurs by the sublimate being directly irradiated with an excitation pulsed laser beam using a pump energy higher than a prescribed energy that is the laser oscillation threshold value.
Inventors:
UCHINO Takashi (1-1 Rokkodai-cho, Nada-ku, Kobe-sh, Hyogo 01, 〒6578501, JP)
内野 隆司 (〒01 兵庫県神戸市灘区六甲台町１－１ 国立大学法人神戸大学内 Hyogo, 〒6578501, JP)
内野 隆司 (〒01 兵庫県神戸市灘区六甲台町１－１ 国立大学法人神戸大学内 Hyogo, 〒6578501, JP)
Application Number:
JP2009/065252
Publication Date:
March 04, 2010
Filing Date:
September 01, 2009
Export Citation:
Assignee:
The New Industry Research Organization (Floor 6, Kobe-kimec Center Bldg.5-2,Minatojimaminamimachi 1-chome,Chuo-ku,Kobe-sh, Hyogo 47, 〒6500047, JP)
財団法人新産業創造研究機構 (〒47 兵庫県神戸市中央区港島南町１－５－２ 神戸キメックセンタービル６Ｆ Hyogo, 〒6500047, JP)
UCHINO Takashi (1-1 Rokkodai-cho, Nada-ku, Kobe-sh, Hyogo 01, 〒6578501, JP)
財団法人新産業創造研究機構 (〒47 兵庫県神戸市中央区港島南町１－５－２ 神戸キメックセンタービル６Ｆ Hyogo, 〒6500047, JP)
UCHINO Takashi (1-1 Rokkodai-cho, Nada-ku, Kobe-sh, Hyogo 01, 〒6578501, JP)
International Classes:
H01S3/16; C01F5/04; C09K11/55; H01J29/20; H01J31/12
Attorney, Agent or Firm:
The Patent corporate body Global Intellectual Property (Floor 3, Shinmeikai Bldg. 4-banchi, Kaigandori, Chuo-k, Kobe-shi Hyogo 24, 〒6500024, JP)
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