Silver-covered diffraction gratings as possible high-efficiency laser driven photoemitters
We propose to use silver-covered optical diffraction gratings as possible laser-driven electron sources. Such structures allow surface plasma waves excitation and consequently an enhancement of the photoemission sensitivity. The latter can easily be tuned with the wavelength of the excitation laser...
Saved in:
| Published in: | Applied physics letters Vol. 58; no. 12; pp. 1230 - 1232 |
|---|---|
| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
25-03-1991
|
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | We propose to use silver-covered optical diffraction gratings as possible laser-driven electron sources. Such structures allow surface plasma waves excitation and consequently an enhancement of the photoemission sensitivity. The latter can easily be tuned with the wavelength of the excitation laser by varying the incidence angle. Using a commercial diffraction grating, we obtained after a cesium activation, a quantum yield higher than 1% at the wavelength of a frequency tripled YAG laser (λ=355 nm) for the incidence angle corresponding to the plasmon resonance. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.104371 |