The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2005
Filed:
Jan. 03, 2002
Wang Nang Wang, Bath, GB;
Yury Georgievich Shreter, St. Petersburg, RU;
Yury Toomasovich Rebane, St. Petersburg, RU;
Wang Nang Wang, Bath, GB;
Yury Georgievich Shreter, St. Petersburg, RU;
Yury Toomasovich Rebane, St. Petersburg, RU;
Arima Optoelectronics Corp., , TW;
Abstract
The invention provides a method and device for light generation wherein an embodiment of the device comprises a lower electrode, a conducting substrate formed on the lower electrode, and a triangle mesa structure having an optical cavity formed on the substrate. The triangle mesa structure (which can also be truncated) further comprises an active layer, a lower conducting mirror and an upper conducting mirror for vertical confinement of light in the optical cavity, a contact layer formed on the upper mirror, a metallic contact formed on the contact layer. An electrical current is applied to the device according to the invention through the metallic contact linked to the contact layer, and subsequently to the lower electrode through the lower mirror and the conducting substrate. The applied current results in light generation in the active layer with vertical light output through the metallic contact. A corresponding light generation method is also disclosed herein.