US 12,334,714 B2
Visible light-emitting device and laser with improved tolerance to crystalline defects and damage
Minjoo Lawrence Lee, Urbana, IL (US); and Pankul Dhingra, Urbana, IL (US)
Assigned to The Board of Trustees of the University of Illinois, Urbana, IL (US)
Filed by The Board of Trustees of the University of Illinois, Urbana, IL (US)
Filed on May 23, 2022, as Appl. No. 17/751,335.
Claims priority of provisional application 63/191,752, filed on May 21, 2021.
Prior Publication US 2022/0376477 A1, Nov. 24, 2022
Int. Cl. H01S 5/343 (2006.01); H10H 20/812 (2025.01)
CPC H01S 5/3432 (2013.01) [H01S 5/3436 (2013.01); H10H 20/812 (2025.01)] 19 Claims
OG exemplary drawing
 
1. A light emission source comprising:
an active region having a plurality of InP quantum dots (QDs) epitaxially grown therein, the active region operable to convert electrical current into light emission;
a first barrier layer grown below the active region;
a second barrier layer grown on top of the active region; and
a first carrier blocking layer grown below the first barrier layer.