US 12,461,297 B2
One-way circularly polarized light generated by propagation through Ch-GLC films doped with light-absorbing dyes
Shaw Chen, Rochester, NY (US); Mitchell Anthamatten, Rochester, NY (US); and Jane Ou, Rochester, NY (US)
Assigned to University of Rochester, Rochester, NY (US)
Filed by University of Rochester, Rochester, NY (US)
Filed on Jan. 21, 2022, as Appl. No. 17/581,124.
Claims priority of provisional application 63/151,410, filed on Feb. 19, 2021.
Prior Publication US 2022/0268982 A1, Aug. 25, 2022
Int. Cl. G02B 5/30 (2006.01); C09B 1/42 (2006.01); C09B 1/503 (2006.01); C09K 19/36 (2006.01); C09K 19/60 (2006.01); G02B 1/11 (2015.01); G02B 5/00 (2006.01)
CPC G02B 5/3025 (2013.01) [C09B 1/42 (2013.01); C09B 1/5035 (2013.01); C09K 19/36 (2013.01); C09K 19/603 (2013.01); G02B 1/11 (2013.01); G02B 5/003 (2013.01); G02B 5/3016 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An optical device comprising:
a cholesteric glassy liquid crystal film doped with a dye, wherein said film:
preferentially absorbs a forward component of light incident on the film that is circularly polarized with handedness in a first direction as well as any backward component of the incident light that is circularly polarized with handedness in said first direction and has been reflected after passage through the doped film; and
preferentially passes through the doped film a forward component of the incident light that is circularly polarized with handedness in a second direction that is different from the first direction.