US 12,476,436 B2
Systems and methods for microdisk and multiplet laser particles
Seok-Hyun Yun, Belmont, MA (US); and Paul Dannenberg, Cambridge, MA (US)
Assigned to The General Hospital Corporation, Boston, MA (US)
Appl. No. 18/044,432
Filed by The General Hospital Corporation, Boston, MA (US)
PCT Filed Sep. 8, 2021, PCT No. PCT/US2021/049377
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2022/055938, PCT Pub. Date Mar. 17, 2022.
Claims priority of provisional application 63/075,468, filed on Sep. 8, 2020.
Prior Publication US 2024/0039241 A1, Feb. 1, 2024
Int. Cl. H01S 5/10 (2021.01); G01N 21/64 (2006.01); G02B 21/00 (2006.01); H01S 5/04 (2006.01); H01S 5/02 (2006.01)
CPC H01S 5/1021 (2013.01) [G01N 21/6486 (2013.01); G02B 21/0076 (2013.01); H01S 5/041 (2013.01); H01S 5/1042 (2013.01); H01S 5/1092 (2013.01); G01N 2201/06113 (2013.01); G01N 2201/06193 (2013.01); H01S 5/0217 (2013.01)] 20 Claims
OG exemplary drawing
 
5. A system comprising:
a microparticle formed from a columnar structure comprising:
a first optical cavity situated about a first gain medium;
a second optical cavity situated about a second gain medium; and
a first spacer region contacting the first gain medium and the second gain medium,
wherein the first optical cavity and the second optical cavity each generate laser light with a distinct spectral peak when energetically excited,
wherein the first gain medium, the first spacer region, and the second gain medium are epitaxially grown layers, and
wherein the first spacer region comprises an epitaxially grown semiconductor material that has a composition that allows the first spacer region to be selectively etched with respect to the first gain medium and the second gain medium without substantially affecting a volume or form of the first and second optical cavities.