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US 2026/0072289 A1Published application
Multiband dichroic metamirror and method
OwnerAndrew C. McClung, Urcan Gulerinventors
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Abstract
A multiband dichroic metamirror includes a dielectric mirror and a metasurface. The dielectric mirror is configured to split incident light into a first waveband and a second waveband. The dielectric mirror is also configured to transmit the first waveband with a high transmission value and to reflect the second waveband with a high reflection value. The metasurface acts as a diffractive optical element that is configured to provide optical power for the second waveband.
Claims20
A multiband dichroic metamirror comprising:
- a dielectric mirror configured to split incident light into a first waveband and a second waveband, to transmit the first waveband with a high transmission value, and to reflect the second waveband with a high reflection value;
- and
- a metasurface comprising a diffractive optical element configured to provide optical power for the second waveband.
An optical device comprising:
- an aperture configured to receive incident light;
- a multiband dichroic metamirror configured to split the incident light into a first waveband and a second waveband, to transmit the first waveband with a high transmission value, to reflect the second waveband with a high reflection value, and to provide optical power for the second waveband;
- and
- a second waveband image device, wherein the multiband dichroic metamirror is further configured to direct the reflected second waveband towards the second waveband image device.
1 more element
A method comprising:
- depositing a metasurface material over a dielectric mirror, wherein the dielectric mirror is configured to split incident light into a first waveband and a second waveband, to transmit the first waveband with a high transmission value, and to reflect the second waveband with a high reflection value;
- and
- patterning and etching the metasurface material to create a metasurface configured to provide optical power for the second waveband.
Dependencies are inferred from the claim text.