Reflective coherent spatial light modulator

A method for forming a reflective coherent spatial light modulator (RCSLM), comprising the steps of:

• selecting a waveguide material having a first refractive index, and
• forming a subwavelength resonant grating structure (SWS), said SWS formed from at least one subwavelength resonant grating layer (SWL) in said waveguide material, said SWLs having a plurality of areas defining a plurality of pixels, said plurality of pixels adapted to produce a resonant reflective response characterized by reflecting a band of incident light while transmitting light outside said band.

A method for modulating light, comprising:

• providing a reflective coherent spatial light modulator (RCSLM) comprising a subwavelength resonant grating structure (SWS), said SWS formed from at least one subwavelength resonant grating layer (SWL), said SWLs having a plurality of areas defining a plurality of pixels, at least one from said plurality of pixels adapted to produce a resonant reflective response characterized by substantially reflecting a band of incident light, and structure for modulating the resonant reflective response of the at least one pixel from said plurality of pixels, and
• modulating said reflective response of the at least one pixel to said band of incident light between said substantially reflecting state and a substantially transmitting state.

A coherent spatial light reflector adapted for fixed frequency operation, comprising:

• a subwavelength resonant grating structure (SWS), said SWS formed from at least one subwavelength resonant grating layer (SWL), said SWLs having a plurality of areas defining a plurality of pixels, said plurality of pixels each adapted to produce a resonant reflective response characterized by reflecting a band of incident light while transmitting light outside said respective band.