US 12,487,396 B2
Method and apparatus for fabrication of large three-dimensional single colloidal crystals for bragg diffraction of infrared light
Mary Murphy, Rockville, MD (US); Qian Lei, Piscataway, NJ (US); Boris Khusid, New Providence, NJ (US); Andrew D. Hollingsworth, Princeton, NJ (US); Paul Chaikin, New York, NY (US); and William V. Meyer, Lakewood, OH (US)
Assigned to Nano Racks, LLC, Webster, TX (US); New Jersey Institute of Technology, Newark, NJ (US); New York University, New York, NY (US); and Universities Space Research Association, Columbia, MD (US)
Filed by NanoRacks, LLC, Webster, TX (US); New Jersey Institute of Technology, Newark, NJ (US); New York University, New York, NY (US); and Universities Space Research Association, Columbia, MD (US)
Filed on Mar. 30, 2023, as Appl. No. 18/192,833.
Claims priority of provisional application 63/365,667, filed on Jun. 1, 2022.
Prior Publication US 2023/0393330 A1, Dec. 7, 2023
Int. Cl. G02B 6/02 (2006.01)
CPC G02B 6/02171 (2013.01) [G02B 6/02123 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A three-dimensional Bragg grating, comprising:
a single colloidal crystal that:
includes periodic particles and interstitial material, and
due to having been grown in a micro-gravity environment:
is topological defect free; and
lacks a high-density glass phase.