Accession Number:

AD1061497

Title:

Pump-Probe Study of fs-Laser Hyperdoping and Texturing of Silicon for Advanced Non-equilibrium Materials

Descriptive Note:

Technical Report,01 Jun 2014,31 May 2017

Corporate Author:

Harvard University Cambridge United States

Personal Author(s):

Report Date:

2017-11-17

Pagination or Media Count:

8.0

Abstract:

In this final report, we describe our progress in studying ultrafast laser modification of silicon, with a focus on better understanding the inception of surface texturing and laser-induced periodic surface structures LIPSS at low fluences. We also briefly describe the recent extension of our work to ultrafast laser modification of gallium phosphide GaP, a III-V semiconductor material with high second-order nonlinear susceptibility. We close with a discussion of other current work, including fundamental studies of nanosecond-laser treatment of germanium Ge in order to develop hyper doped Ge for Short Wavelength-Infrared SWIR photodetection, future directions, and a list of published work supported thus far through the AFOSRs support. We sincerely thank the AFOSR for its continued support throughout the project.

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE