Tensile strained semiconductor photon emission and detection devices and integrated photonics system
AssigneeAcorn Semi, LLC
InventorsPaul A. Clifton, Andreas Goebel, R. Stockton Gaines
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Abstract
Tensile strained germanium is provided that can be sufficiently strained to provide a nearly direct band gap material or a direct band gap material. Compressively stressed or tensile stressed stressor materials in contact with germanium regions induce uniaxial or biaxial tensile strain in the germanium regions. Stressor materials may include silicon nitride or silicon germanium. The resulting strained germanium structure can be used to emit or detect photons including, for example, generating photons within a resonant cavity to provide a laser.
Claims20
A light emitting device, comprising:
- a layered structure including a plurality of optical emission regions formed on a planar insulating layer, each optical emission region comprising a group IV semiconductor;
- and
- a waveguide based on silicon formed on the planar insulating layer,
- wherein the optical emission regions are arranged in the layered structure and with respect to one another so as to emit light in a first plane parallel to a plane of the insulating layer and in a direction to be coupled into the waveguide based on silicon.
Dependencies are inferred from the claim text.