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- W1990582714 abstract "We present a proof-of-concept optical experiment that demonstrates theability to record squinted broadband RF images formed by a Fourier beamforming phased-array antenna and subsequent squint correction using spatial spectral holography. A cryogenically cooled inhomogeneously broadened absorber (Tm3+:YAG) acts as a spectrally selective holographic medium which records the squinted RF image, covering a wide RF bandwidth (approaching 20 GHz) with resolution of approximately 1 MHz. Subsequently, a frequency-swept laser can read out the squinted image while a magnification-compensating motorized zoom lens synchronously corrects the magnification due to beam squint. Time-integration the image on a CCD detector array produces a squint-compensated broadband RF image, while detection with a MHz bandwidth detector can produce spectral estimates for all sources recorded with this imaging system." @default.
- W1990582714 created "2016-06-24" @default.
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- W1990582714 date "2004-10-15" @default.
- W1990582714 modified "2023-09-23" @default.
- W1990582714 title "Squint compensation for a broadband RF array spectral imager using spatial spectral holography" @default.
- W1990582714 doi "https://doi.org/10.1117/12.559689" @default.
- W1990582714 hasPublicationYear "2004" @default.
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