Terahertz Sideband-tuned Quantum Cascade Laser Radiation
A compact, tunable, narrowband terahertz source was demonstrated by mixing a single longitudinal mode 2.408 THz, free running quantum cascade laser with a 2-20 GHz microwave sweeper in a conventional corner-cube-mounted Schottky diode. The sideband spectra were characterized with a Fourier transform...
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| creator | Danylov, Andriy A Waldman, Jerry Goyette, Thomas M Gatesman, Andrew J Giles, Robert H Li, Jin Goodhue, William D Linden, Kurt J Nixon, William E |
| description | A compact, tunable, narrowband terahertz source was demonstrated by mixing a single longitudinal mode 2.408 THz, free running quantum cascade laser with a 2-20 GHz microwave sweeper in a conventional corner-cube-mounted Schottky diode. The sideband spectra were characterized with a Fourier transform spectrometer, and the radiation was tuned through several D2O rotational transitions to estimate the longer term (t greater than or equal to several sec) bandwidth of the source. A spectral resolution of 2 MHz in CW regime was observed.
Published in Optics Express, v16 n8 p5171-5180, 31 Mar 2008. Sponsored in part by the U.S. Army National Ground Intelligence Center and the Department of Homeland Security. |
| format | Report |
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| subjects | ABSORPTION Atomic and Molecular Physics and Spectroscopy CONTINUOUS WAVE LASERS FAR INFRARED RADIATION FOURIER SPECTROMETERS FOURIER TRANSFORMATION HARMONICS Lasers and Masers LINEWIDTH LONG WAVELENGTHS MICROWAVES MIXING Optics REFRACTIVE INDEX REPRINTS SEMICONDUCTOR LASERS SPECTROSCOPY TERAHERTZ QUANTUM CASCADE LASERS Theoretical Mathematics |
| title | Terahertz Sideband-tuned Quantum Cascade Laser Radiation |
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