Electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays
We describe the electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays fabricated on doped semiconductor substrates. The hybrid metal-semiconductor forms a Schottky diode structure, where the active depletion region modifies the substrate conductivity in r...
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| Veröffentlicht in: | Optics express 2008-05, Vol.16 (11), p.7641-7648 |
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| container_issue | 11 |
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| container_title | Optics express |
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| creator | Chen, Hou-Tong Lu, Hong Azad, Abul K Averitt, Richard D Gossard, Arthur C Trugman, Stuart A O'Hara, John F Taylor, Antoinette J |
| description | We describe the electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays fabricated on doped semiconductor substrates. The hybrid metal-semiconductor forms a Schottky diode structure, where the active depletion region modifies the substrate conductivity in real-time by applying an external voltage bias. This enables effective control of the resonance enhanced terahertz transmission. Our proof of principle device achieves an intensity modulation depth of 52% by changing the voltage bias between 0 and 16 volts. Further optimization may result in improvement of device performance and practical applications. This approach can be also translated to the other optical frequency ranges. |
| doi_str_mv | 10.1364/oe.16.007641 |
| format | Article |
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| ispartof | Optics express, 2008-05, Vol.16 (11), p.7641-7648 |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Computer Simulation Computer-Aided Design Electronics - instrumentation Equipment Design Equipment Failure Analysis Light Microwaves Models, Theoretical Scattering, Radiation Semiconductors Surface Plasmon Resonance - instrumentation Telecommunications - instrumentation |
| title | Electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays |
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