Accession Number:

ADA371392

Title:

New Quantum Dot Waveguides for Nonlinear Optical Applications (An AASERT Award)

Descriptive Note:

Final rept. 1 Jul 95-30 Sep 99

Corporate Author:

CALIFORNIA UNIV LOS ANGELES DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1999-08-01

Pagination or Media Count:

19.0

Abstract:

Three female graduate students who are all U.S. citizens have been supported by this grant. During the past few years, this collaborative project had resulted in the preparation of CdS optical discs with the highest X3 recorded and the successful fabrication of these highest X3 recorded and the successful fabrication of these materials into waveguides. That research had also created an environment in which students could be trained not only as materials scientists but, with the exposure to the activities of the Arizona Optical Sciences Center, simultaneously as new materials based device fabricators. In the future, such trained students will be invaluable in rapid exploitation of new materials and technology transfer in the field of photonics. Quantum dot samples based on CdS and their fabrication into waveguides had been successfully accomplished. 1 We proposed to adopt the same technique, that is the SOL-GEL technique, to prepare other quantum dot samples based on METAL CLUSTERS, e.g., silver and CdTe. Metal cluster quantum dots have very high X3, and 2 Their containment in an oxide glass matrix and their fabrication into waveguides have not been reported. Theoretically, however, CdTe quantum dots should have higher values of X3 than CdS. We had proposed to study both metal clusters and CdTe if support was available for our students. Originally, the present ASSERT award was made for one student only. We therefore decided to conduct research on CdTe only. The plan was to use sodium borosilicate glass as a matrix as for the CdS quantum dot samples. Firstly, the sol-gel method enabled us to make dense glasses at the relatively low temperatures of 500-550 deg C. Secondly, a sodium containing glass would permit ion exchange with potassium ions in a molten salt bath and thus lead to the fabrication of waveguides.

Subject Categories:

  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE