Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3268806
Keywords
cathodoluminescence; cavity resonators; finite difference time-domain analysis; II-VI semiconductors; nanophotonics; nanostructured materials; optical resonators; optical waveguides; whispering gallery modes; wide band gap semiconductors; zinc compounds
Categories
Funding
- Korea Research Foundation [KRF-2007-412-J04003]
- Korea SMBA through the International Joint Research and Development Program
- National Research Foundation of Korea [2007-412-J04003] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Spatially resolved cathodoluminescence (CL) study of a ZnO nanonail, having thin shank, tapered neck, and hexagonal head sections, is reported. Monochromatic imaging and line-scan profiling indicate that the wave guiding and leaking from growth imperfections in addition to the oxygen-deficiency variation determine the spatial contrast of CL emissions. Occurrence of resonance peaks at identical wavelengths regardless of CL-excitation spots is inconsistent with the whispering-gallery mode (WGM) resonances of a two-dimensional cavity in the finite-difference time domain simulation. However, three-dimensioanl cavity simulation produced WGM peaks that are consistent with the experimental spectra, including transverse-electric resonances that are comparable to transverse-magnetic ones.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
