	US 12,135,433 B2
	Arbitrary polarization-switchable metasurfaces
Noah A. Rubin, Cambridge, MA (US); Jan Philipp Balthasar Mueller, Cambridge, MA (US); and Federico Capasso, Cambridge, MA (US)
Assigned to PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Cambridge, MA (US)
Filed by PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Cambridge, MA (US)
Filed on Mar. 13, 2023, as Appl. No. 18/120,958.
Application 18/120,958 is a continuation of application No. 16/327,771, granted, now 11,604,364, previously published as PCT/US2017/048469, filed on Aug. 24, 2017.
Claims priority of provisional application 62/379,186, filed on Aug. 24, 2016.
Prior Publication US 2023/0288716 A1, Sep. 14, 2023
Int. Cl. G02B 27/28 (2006.01); G02B 1/00 (2006.01); G02B 5/30 (2006.01); G03H 1/02 (2006.01)

CPC G02B 27/286 (2013.01) [G02B 1/002 (2013.01); G02B 5/3083 (2013.01); G02B 27/283 (2013.01); G03H 1/0244 (2013.01); G02B 2207/101 (2013.01); G03H 2222/31 (2013.01)]

18 Claims

1. An optical component, comprising:

a metasurface comprising nanoscale elements configured to receive incident light and to generate optical outputs,

wherein geometries or orientations of the nanoscale elements provide a first optical output upon receiving a polarized incident light with a first polarization, and provide a second optical output upon receiving a polarized incident light with a second polarization that is different from the first polarization,

wherein the first polarization is a linear polarization or a circular polarization,

wherein the Jones vector of the first polarization is defined by:

and the Jones vector of the second polarization is defined by:

wherein the phase shift on the first polarization is defined by ϕ⁺(x,y) and the phase shift on the second polarization is defined by ϕ⁻(x,y),

wherein the superscript * denotes the complex conjugate, and

wherein the Jones matrix at each point (x,y) of the metasurface which defines the output when multiplied by the Jones vector of the polarized incident light is defined by: