US 11,953,439 B2
Articles and methods for generation of tunable coloration and interference
Lauren Dell Zarzar, State College, PA (US); Sara N. Nagelberg, Somerville, MA (US); Mathias Kolle, Hull, MA (US); and Amy Goodling, Cary, NC (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US); and The Penn State Research Foundation, University Park (PA)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US); and The Penn State Research Foundation, University Park, PA (US)
Filed on Aug. 16, 2019, as Appl. No. 16/543,254.
Claims priority of provisional application 62/765,032, filed on Aug. 17, 2018.
Prior Publication US 2020/0056996 A1, Feb. 20, 2020
Int. Cl. G01N 21/64 (2006.01); B29D 11/00 (2006.01)
CPC G01N 21/6452 (2013.01) [B29D 11/00298 (2013.01); G01N 2201/0446 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An article, comprising:
a first component and a second component adjacent the first component; and a curved microscale interface between the first component and the second component, the interface configured such that at least a portion of electromagnetic radiation incident to a surface of the interface undergoes total internal reflection between the first component and the second component,
wherein the first component has a first refractive index greater than a second refractive index of the second component; and
wherein the electromagnetic radiation undergoes a change in amplitude during total internal reflection.