skip to main content

DOE PAGESDOE PAGES

Title: Determination of the Goos-Hanchen shift in dielectric waveguides via photo emission electron microscopy in the visible spectrum

Photoemission Electron Microscopy (PEEM) is a versatile tool that relies on the photoelectric effect to produce high-resolution images. Pulse lasers allow for multi-photon PEEM where multiple photons are required excite a single electron. This non-linear process can directly image the near field region of electromagnetic fields in materials. We use this ability here to analyze wave propagation in a linear dielectric waveguide with wavelengths of 410nm and 780nm. The propagation constant of the waveguide can be extracted from the interference pattern created by the coupled and incident light and shows distinct polarization dependence. Furthermore, the electromagnetic field interaction at the boundaries can then be deduced which is essential to understand power flow in wave guiding structures. These results match well with simulations using finite element techniques.
Authors:
 [1] ;  [1] ;  [1]
  1. Portland State Univ., Portland, OR (United States)
Publication Date:
Grant/Contract Number:
FG02-07ER46406
Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 24; Journal Issue: 4; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Research Org:
Portland State Univ., Portland, OR (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; microscopy; optics at surfaces; Fourier optics and signal processing; wave propagation
OSTI Identifier:
1238201
Alternate Identifier(s):
OSTI ID: 1253355