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

Claim 0:
1. A spatial light modulator comprising:
a two-dimensional array of semiconductor cavities disposed on a substrate, wherein:
each semiconductor cavity in the two-dimensional array of semiconductor cavities comprises a photonic crystal cavity or a cavity region containing at least one semiconductor layer, a first distributed Bragg reflector (DBR) disposed at a first end of the cavity region, and a second DBR disposed at a second end of the cavity region to form a resonant cavity, and
the two-dimensional array of semiconductor cavities scatters signal light at a resonant wavelength; 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.