Abstract
The spatial impulse response of antenna-coupled infrared detectors
with dimensions comparable with the wavelength is obtained from a
two-dimensional scan of a tightly focused CO2-laser
beam. The method uses an experimental setup with submicrometer
resolution and an iterative deconvolution algorithm. The measured
spatial response is compared with numerically computed near-field
distributions of a dipole antenna, with good agreement.
© 1999 Optical Society of America
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