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Table 1 Main parameters of the terahertz BWO-spectrometer

From: Ge/Si(001) heterostructures with dense arrays of Ge quantum dots: morphology, defects, photo-emf spectra and terahertz conductivity

Frequency range , THz

0.03 to 2

Probing radiation power, mW

1 to 100

Frequency resolution:

 

relative, Δν/ν

10−4–10−5

absolute, cm−1

0.001

Dynamical range, dB

40 to 60

Signal to noise ratio

104 to 106

Probing radiation polarization degree, %

99.99

Time to record a spectrum of 100 points, s:

 

amplitude Tr(ν)

10 to 20

phase φ(ν)

20 to 40

Temperature interval, K

2 to 300

Magnetic fields, T

up to 7

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