Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Alexander R. Light"'
Publikováno v:
Applied optics. 54(35)
Measurements of the frequency stability of a far-infrared molecular laser have been made by mixing the harmonic of an ultrastable microwave source with a portion of the laser output signal in a terahertz (THz) Schottky diode balanced mixer. A 3 GHz d
Publikováno v:
SPIE Proceedings.
This paper introduces the continuously tunable THz radiation through sideband generation of a free running and solidnitrogen- cooled THz quantum cascade laser. The 2.324 THz QCL operating in a single longitudinal mode (SLM) in continuous-wave (cw) wa
Publikováno v:
Applied optics. 53(20)
A compact, tunable, ultranarrowband terahertz source, Δν∼1 MHz, is demonstrated by upconversion of a 2.324 THz, free-running quantum cascade laser with a THz Schottky-diode-balanced mixer using a swept, synthesized microwave source to drive the n
Autor:
William D. Goodhue, Xifeng Qian, Jerry Waldman, Alexander R. Light, Andriy A. Danylov, Neal R. Erickson
Publikováno v:
Optics express. 20(25)
Frequency stabilization of a THz quantum cascade laser (QCL) to the harmonic of a microwave source has been accomplished using a Schottky diode waveguide mixer designed for harmonic mixing. The 2.32 THz, 1.0 milliwatt CW QCL is coupled into the signa
Autor:
William D. Goodhue, Alexander R. Light, Andriy A. Danylov, Thomas M. Goyette, Jerry Waldman, Xifeng Qian, Neelima Chandrayan, William E. Nixon, Robert H. Giles
Publikováno v:
SPIE Proceedings.
Operational temperature increase of CW THz QCLs to 77 K has enabled us to employ solid nitrogen (SN2) as the cryogen. A roughing pump was used to solidify liquid nitrogen and when the residual vapor pressure in the nitrogen reservoir reached the pump