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Demonstration of the frequency upshifting of microwave radiation by rapid plasma creation | IEEE Journals & Magazine | IEEE Xplore
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Demonstration of the frequency upshifting of microwave radiation by rapid plasma creation


Abstract:

A technique for frequency-upshifting electromagnetic radiation is demonstrated. By ionizing azulene vapor contained in a resonant cavity using a laser pulse, the frequenc...Show More

First Page of the Article

Abstract:

A technique for frequency-upshifting electromagnetic radiation is demonstrated. By ionizing azulene vapor contained in a resonant cavity using a laser pulse, the frequency of the incident RF wave at 33.3 GHz is upshifted by 5% with greater than 10% efficiency. Maximum frequency upshift of 2.3 times the source frequency is observed. There are two mechanisms thought to be operative in producing the observed frequency upshift: the time-dependent dielectric constant due to increasing plasma density, and rapid Q-switching of the cavity. This technique has the potential of being able to generate tunable and chirped radiation over a very broad ( Delta f/f>or approximately=1) frequency range.<>
Published in: IEEE Transactions on Plasma Science ( Volume: 18, Issue: 5, October 1990)
Page(s): 814 - 818
Date of Publication: 31 October 1990

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