Broadband terahertz generation using the semiconductor-metal transition in VO{sub 2}
- Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC, 20375 (United States)
We report the design, fabrication, and characterization of broadband terahertz emitters based on the semiconductor-metal transition in thin film VO{sub 2} (vanadium dioxide). With the appropriate geometry, picosecond electrical pulses are generated by illuminating 120 nm thick VO{sub 2} with 280 fs pulses from a femtosecond laser. These ultrafast electrical pulses are used to drive a simple dipole antenna, generating broadband terahertz radiation.
- OSTI ID:
- 22492400
- Journal Information:
- AIP Advances, Vol. 6, Issue 1; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
- Country of Publication:
- United States
- Language:
- English
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