US 12,326,622 B2
Thermally tunable low broadband waveguides and related systems and methods
Michal Lipson, New York, NY (US); Aseema Mohanty, New York, NY (US); Mohammad Amin Tadayon, Bronx, NY (US); Adam Kepecs, Cold Spring Harbor, NY (US); Qian Li, Cold Spring Harbor, NY (US); Xingchen Ji, New York, NY (US); Christine P. Hendon, Bronx, NY (US); and Xinwen Yao, New York, NY (US)
Assigned to The Trustees of Columbia University in the City of New York, New York, NY (US); and Cold Spring Harbor Laboratory, Cold Spring Harbor, NY (US)
Appl. No. 16/480,973
Filed by The Trustees of Columbia University in the City of New York, New York, NY (US); and COLD SPRING HARBOR LABORATORY, Cold Spring Harbor, NY (US)
PCT Filed Jan. 25, 2018, PCT No. PCT/US2018/015265
§ 371(c)(1), (2) Date Jul. 25, 2019,
PCT Pub. No. WO2018/140615, PCT Pub. Date Aug. 2, 2018.
Claims priority of provisional application 62/450,158, filed on Jan. 25, 2017.
Claims priority of provisional application 62/451,504, filed on Jan. 27, 2017.
Prior Publication US 2019/0391415 A1, Dec. 26, 2019
Int. Cl. G02F 1/01 (2006.01); A61N 5/06 (2006.01)
CPC G02F 1/0147 (2013.01) [A61N 5/0601 (2013.01); A61N 5/0622 (2013.01); G02F 1/011 (2013.01); A61N 2005/063 (2013.01); G02F 2203/50 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device, comprising:
a distal portion configured to be implanted in a brain of a subject, the distal portion comprising a phased array of emitters configured to emit light in the visible spectrum, wherein each emitter in the array is independently switchable to enable emission from a selected emitter; and
a proximal portion configured to be external to the brain of the subject while the distal portion is implanted, wherein the proximal portion includes at least one waveguide in optical communication with the phased array of emitters the at least one waveguide defining a cross-sectional width less than 500 nm, wherein the at least one waveguide is coupled to a heating element configured to adjust a phase of light within the at least one waveguide,
wherein the proximal portion comprises an optical switch having an input arm, a first output arm, and a second output arm, and wherein the heating element is configured to adjust the phase of light within the at least one waveguide, between the first output arm and the second output arm, at a switching speed faster than about 1 ms.