Borate birefringent crystal applicable to ultraviolet (UV) or deep ultraviolet (DUV) range, and growth method and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9360610
APP PUB NO 20140133014A1
SERIAL NO

14128370

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a borate birefringent crystal applicable to ultraviolet (UV) or deep ultraviolet (DUV) range, with chemical formula of Ba2Mg(B3O6)2. The borate birefringent crystal belongs to a trigonal system, with space group of R-3 wherein a=0.70528(3) nm, c=1.65520(9) nm and Z=12. The barium magnesium borate birefringent crystal is negative uniaxial (neo) with a birefringence of 0.077-0.229 and a transmission range of 177-3000 nm. The crystal is easy to cut, grind, polish, and preserve, and is stable in air and is not easy to deliquesce. The barium magnesium borate birefringent crystal can be grown by the Czochralski method, flux method or the method of spontaneous crystallization from a melt, and has larger birefringence (no−ne=0.077-0.229). The crystal has important applications in the fields of optics and communications, e.g. for fabricating the polarizing beam splitter prism.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TECHNICAL INSTITUTE OF PHYSICS AND CHEMISTRY CHINESE ACADEMY OF SCIENCESNO 29 EAST ZHONGGUANCUN ROAD HAIDIAN DISTRICT BEIJING 100190 BEIJING CITY BEIJING CITY 100190

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Rukang Beijing, CN 6 22
Ma, Yingying Beijing, CN 2 2

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 7, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00