Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics > for the control of the intensity, phase, polarisation or colour > based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction > Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics > for the control of the intensity, phase, polarisation or colour (G02F1/29, G02F1/35 take precedence) > based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction (G02F1/03 takes precedence) > Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells