Terahertz wave generation from thin metal films excited by asymmetrical optical fields
We experimentally demonstrated terahertz (THz) wave emission from thin metal (gold) films excited by asymmetrical optical fields synthesized using an in-line phase compensator. By driving the electrons in thin metal films asymmetrically, THz wave emission is observed at normal incidence of two-color...
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| Published in | Optics letters Vol. 39; no. 4; p. 777 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
15.02.2014
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| Online Access | Get more information |
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| Summary: | We experimentally demonstrated terahertz (THz) wave emission from thin metal (gold) films excited by asymmetrical optical fields synthesized using an in-line phase compensator. By driving the electrons in thin metal films asymmetrically, THz wave emission is observed at normal incidence of two-color pump beams. Coherent control of THz wave emission from metal films suggests that a mechanism similar to that of the air-plasma THz source excited by two-color laser fields can be used to describe the generation processes. |
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| ISSN: | 1539-4794 |
| DOI: | 10.1364/OL.39.000777 |