Experimental characterization of 2D exciton coherence area for MoSe2

Abstract

We propose to carry out a detailed quantitative analysis of coherent feedback modulation of optical reflection and photoluminescence spectra in MoSe2, including the impact of excitation laser focusing parameters relative to the exciton coherence area. This analysis will include both the development of detailed theoretical models and experiments on key types of MoSe2 samples. We will use our existing experimental apparatus to perform measurements with both samples grown by chemical vapor deposition and exfoliated flakes encapsulated in high-quality hexagonal boron nitride. We will provide rigorous interpretations of the data, and assess the implications of our results for future work on cavity nonlinear optics (attojoule photonic switching) experiments leveraging two dimensional excitons in MoSe2.

Document Details

Document Type
DoD Grant Award
Publication Date
Jul 24, 2019
Source ID
W911NF1910398

Entities

People

  • Hideo Mabuchi

Organizations

  • Army Contracting Command
  • Stanford University
  • United States Army

Tags

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Theoretical Analysis.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Graphene