Patent ID: 11899293
Assignee: HYPERLIGHT CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A device, comprising:
an optical device, at least a portion of the optical device including at least one ferroelectric nonlinear optical material, the at least the portion of the optical device being fabricated utilizing ultraviolet (UV) photolithography and including a sidewall;
wherein the sidewall is fabricated using the UV photolithography, a first etch and a second etch, the UV photolithography being used to form a mask for fabricating a hard mask from a hard mask layer, the first etch for removing a portion of the hard mask layer to form the hard mask, the second etch for removing a portion of the at least one ferroelectric nonlinear optical material to form the sidewall, the second etch being selected from a dry etch, a reactive ion etch (RIE), a plasma etch and a chemical etch, the second etch being different from the first etch such that the sidewall has a short range root mean square roughness of less than ten nanometers.