Accession Number:

ADA280929

Title:

Optical Properties of Semiconductor Superlattices

Descriptive Note:

Final rept. 1 Jul 1991-30 Jun 1993

Corporate Author:

WORCESTER POLYTECHNIC INST MA DEPT OF PHYSICS

Personal Author(s):

• Ram-Mohan, L. R.

Report Date:

1993-06-30

Pagination or Media Count:

6.0

Abstract:

The theoretical research performed under the auspices of this grant has played a central role in the investigation of optical and magneto-optical properties of semiconductor heterostructures. There are two major developments to report. One is that the method of finite elements has been proved to be a very effective, flexible, and powerful approach for the calculation of energy levels in semiconductor superlattices and quantum well structures. The second is the method of tight-binding which provides a full Brillouin-zone description of the energy bands of superlattices and quantum wells. These two approaches have allowed new theoretical insights in understanding the electronic and optical properties of heterostructures. The following items describe these new developments based on work supported by the research grant.

Descriptors:

• *OPTICAL PROPERTIES
• *SUPERLATTICES
• *SEMICONDUCTORS
• MAGNETIC PROPERTIES
• CRYSTAL STRUCTURE
• ELECTRONIC STATES
• MERCURY
• TRANSFER
• BRILLOUIN ZONES
• MATRIX THEORY
• ENERGY LEVELS
• ALUMINUM ARSENIDES
• CADMIUM TELLURIDES
• QUANTUM WELLS
• GALLIUM ARSENIDES
• FINITE ELEMENT ANALYSIS
• STRUCTURES

Subject Categories:

• Electrical and Electronic Equipment
• Crystallography
• Electricity and Magnetism
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE