Frequency upconversion of electromagnetic radiation upon transmission into an ionization front

Journal Article · Mon Feb 17 00:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.946· OSTI ID:7275870

Savage, Jr, R L; Joshi, C; Mori, W B ^[1]

---

1. Electrical Engineering Department, University of California, Los Angeles, California 90024-1594 (United States)

We have demonstrated that an underdense ionization front can significantly upshift the frequency of an impinging electromagnetic wave. Source radiation at 35 GHz was shifted to more than 116 GHz when a relativistically propagating, laser-produced ionization front interacted with microwave radiation that was confined in a resonant cavity. The amount of upshift was proportional to the plasma density in the front, in agreement with theoretical predictions.

• DOE Contract Number: FG03-91ER12114
• OSTI ID: 7275870
• Journal Information: Physical Review Letters; (United States), Vol. 68:7; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
HARMONIC GENERATION
MICROWAVE RADIATION
INTERACTIONS
EXPERIMENTAL DATA
GHZ RANGE 01-100
GHZ RANGE 100-1000
IONIZATION
PLASMA DENSITY
RELATIVISTIC RANGE
SIGNALS
TIME RESOLUTION
WAVE PROPAGATION
DATA
ELECTROMAGNETIC RADIATION
ENERGY RANGE
FREQUENCY MIXING
FREQUENCY RANGE
GHZ RANGE
INFORMATION
NUMERICAL DATA
PLASMA
RADIATIONS
RESOLUTION
TIMING PROPERTIES
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)