Accession Number : ADA318779

Title :   Investigation of Novel Quantum Well Structures for Non-Linear Optics.

Descriptive Note : Final rept. 1 Sep 93-31 Aug 96,

Corporate Author : STANFORD UNIV CA STANFORD ELECTRONICS LABS

Personal Author(s) : Harris, J. S.

PDF Url : ADA318779

Report Date : 20 NOV 1996

Pagination or Media Count : 18

Abstract : This is the final report for AASERT increment #N00014-93-I-1061 to contract N00014-92-J-1903. Initially, Herman Chui was supported and upon completion of his Ph.D., Chris Ebert, was added to the CNOM project to develop a mid-infrared light source using form birefringent waveguides. A compact, integrated mid-infrared light source (^ 3-5 micrometers) would have several applications, including airborne countermeasures and spectroscopy. The efforts here are aimed at creating nonlinear waveguides that can, through the process of Difference Frequency Generation (DFG), mix two near-infrared laser diodes and generate a long wavelength output. One of the most interesting properties of 'artificially structured' materials is that they can exhibit properties that are absent in the bulk materials of which they are composed. Such an example is the birefringence exhibited in multilayer stacks of materials, where the component materials are isotropic. This effect is known as form birefringence. Thus, waves traversing the medium with their electric fields perpendicular to the plane (TM) experience a different index of refraction than TE waves (those with electric field parallel to the plane). This difference is due to the different boundary conditions imposed on electric fields parallel and perpendicular to dielectric interfaces.

Descriptors :   *LIGHT SOURCES, *QUANTUM ELECTRONICS, DIELECTRICS, REFRACTIVE INDEX, ELECTRIC FIELDS, NONLINEAR OPTICS, OPTICAL WAVEGUIDES, BIREFRINGENCE, NEAR INFRARED RADIATION, INTERMEDIATE INFRARED RADIATION, DIFFERENCE FREQUENCY, DIODE LASERS.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE