Patent ID: 11860458
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 22:
23. A spatial light modulator, comprising:
a two-dimensional array of semiconductor cavities disposed on a substrate, wherein:
the two-dimensional array of semiconductor cavities scatters signal light at a resonant wavelength, and
each semiconductor cavity in the two-dimensional array of semiconductor cavities has a quality factor Q of at least 1000 and has a transverse pixel size from of about half a resonant wavelength of the signal light to about the resonant wavelength of the signal light; and

at least one incoherent light source, in optical communication with the two-dimensional array of semiconductor cavities, to tune the resonant wavelength of at least one semiconductor cavity in the two-dimensional array of semiconductor cavities by at least 20% of a linewidth of the at least one semiconductor cavity via optical free carrier injection so as to modulate amplitude and phase of signal light incident on the at least one semiconductor cavity.