Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Correction of optical delay line errors in terahertz time-domain spectroscopy. / Mamrashev, Alexander; Minakov, Fedor; Maximov, Lev и др.
в: Electronics (Switzerland), Том 8, № 12, 1408, 12.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Correction of optical delay line errors in terahertz time-domain spectroscopy
AU - Mamrashev, Alexander
AU - Minakov, Fedor
AU - Maximov, Lev
AU - Nikolaev, Nazar
AU - Chapovsky, Pavel
PY - 2019/12
Y1 - 2019/12
N2 - One of the key elements of terahertz time-domain spectrometers is the optical delay line. Usually it consists of a motorized translation stage and a corner reflector mounted on its top. Errors in the positioning of the translation stage lead to various distortions of the measured waveform of terahertz pulses and, therefore, terahertz spectra. In this paper, the accuracy of position measurements is improved by using an optical encoder. Three types of systematic errors are found: Increasing and periodic offsets of the translation stage position, as well as a drift of its initial position in a series of consecutive measurements. The influence of the detected errors on the measured terahertz spectra is studied and correction methods are proposed.
AB - One of the key elements of terahertz time-domain spectrometers is the optical delay line. Usually it consists of a motorized translation stage and a corner reflector mounted on its top. Errors in the positioning of the translation stage lead to various distortions of the measured waveform of terahertz pulses and, therefore, terahertz spectra. In this paper, the accuracy of position measurements is improved by using an optical encoder. Three types of systematic errors are found: Increasing and periodic offsets of the translation stage position, as well as a drift of its initial position in a series of consecutive measurements. The influence of the detected errors on the measured terahertz spectra is studied and correction methods are proposed.
KW - Correction
KW - Optical delay line
KW - Optical encoder
KW - Terahertz metrology
KW - Terahertz spectra
KW - Terahertz spectroscopy
KW - SYSTEM
KW - terahertz spectroscopy
KW - NOISE
KW - optical delay line
KW - optical encoder
KW - GENERATION
KW - correction
KW - terahertz spectra
KW - terahertz metrology
UR - http://www.scopus.com/inward/record.url?scp=85075596103&partnerID=8YFLogxK
U2 - 10.3390/electronics8121408
DO - 10.3390/electronics8121408
M3 - Article
AN - SCOPUS:85075596103
VL - 8
JO - Electronics (Switzerland)
JF - Electronics (Switzerland)
SN - 2079-9292
IS - 12
M1 - 1408
ER -
ID: 22500055