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:
Jul. 14, 2015
Filed:
Jan. 06, 2014
Samsung Electronics Co., Ltd., Suwon-si, KR;
Gwangju Institute of Science and Technology, Gwangju, KR;
Yong-chul Cho, Suwon-si, KR;
Yong-tak Lee, Gwangju, KR;
Chang-young Park, Yongin-si, KR;
Byung-hoon Na, Suwon-si, KR;
Yong-hwa Park, Yongin-si, KR;
Gun-wu Ju, Daegu, KR;
Hee-ju Chio, Jeonju-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, Gwangju, KR;
Abstract
Provided is an optical device which includes an active layer which includes at least two outer barriers and at least one coupled quantum well, each of the at least one coupled quantum well is sandwiched between the at least two outer barriers. Each of the at least one coupled quantum well includes at least three quantum well layers and at least two coupling barriers interposed between the at least three quantum layers. The at least two coupling barriers have a potential energy which is higher than a ground level and is lower than energy levels of the at least two outer barriers.