Apparatus and Methods of Broadband Second Harmonic Generation
Apparatus and methods for second harmonic generation with a waveguide. In one embodiment, a method includes the steps of providing a waveguide, wherein the waveguide has a substrate, and a polydomain epitaxial thin film on the substrate, wherein the polydomain epitaxial thin film defines a plane and has a first surface and a second, opposite surface defining a body portion of the polydomain epitaxial thin film therebetween with a film thickness, l, and wherein the polydomain epitaxial thin film has a coherence length, lc, and exposing the waveguide to an incident photon beam with a wavelength and a focal point such that the incident photon beam is incident to the plane of the polydomain epitaxial thin film with an angle [theta] that is formed between the incident beam and the plane of the polydomain epitaxial thin film and satisfies the condition of 0<[theta]<90,; wherein the polydomain epitaxial thin film is formed with the following condition satisfied: lAttached files:
Patents:
US 20,100,118,386
Inventor(s): WESSELS BRUCE W [US]; LIN PAO T [US]
Type of Offer: Licensing
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