Frequency-tunable resonant-tunneling-diode terahertz oscillators applied to absorbance measurement
S Kitagawa, M Mizuno, S Saito, K Ogino… - Japanese Journal of …, 2017 - iopscience.iop.org
S Kitagawa, M Mizuno, S Saito, K Ogino, S Suzuki, M Asada
Japanese Journal of Applied Physics, 2017•iopscience.iop.orgWe show that frequency-tunable terahertz oscillators with resonant-tunneling diodes (RTDs)
can be applied to absorbance measurement, using allopurinol as a specimen, which has a
characteristic absorption spectra at around 700 GHz. The RTD oscillators used in this
experiment are seven elements covering from 420 to 970 GHz. The result was in good
agreement with that of time-domain spectroscopy usually used in the terahertz frequency
region.
can be applied to absorbance measurement, using allopurinol as a specimen, which has a
characteristic absorption spectra at around 700 GHz. The RTD oscillators used in this
experiment are seven elements covering from 420 to 970 GHz. The result was in good
agreement with that of time-domain spectroscopy usually used in the terahertz frequency
region.
Abstract
We show that frequency-tunable terahertz oscillators with resonant-tunneling diodes (RTDs) can be applied to absorbance measurement, using allopurinol as a specimen, which has a characteristic absorption spectra at around 700 GHz. The RTD oscillators used in this experiment are seven elements covering from 420 to 970 GHz. The result was in good agreement with that of time-domain spectroscopy usually used in the terahertz frequency region.
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