Progress of ultrafast terahertz time-domain spectroscopy: Raman inactive soft mode in quantum paraelectric SrTiO₃

Low-frequency vibrational properties of crystalline and glassy indomethacin probed by terahertz time-domain spectroscopy and low-frequency Raman scattering

“…The broadband THz transmission spectra were measured from 0.5 to 6.5 THz using the THz-TDS system (TAS7500SU, Advantest Corp.) with a high-speed asynchronous optical sampling technique in which two femtosecond lasers were used instead of the mechanical delay stage [21][22][23]. The low-frequency THz transmission spectra were also measured in the frequency range from 0.2 to 4.0 THz using another THz-TDS system (RT-10000, Tochigi Nikon Corp.) with low temperature-grown GaAs photoconductive antennas for both the emitter and detector [24,25].…”

Broadband terahertz time-domain spectroscopic study on form II polyvinylidene fluoride

“…9 13,14 In this paper, we have performed broadband THz-TDS measurements with transmission configuration to investigate the far-infrared dielectric properties of PVDF (II).…”

Boson peak dynamics of glassy glucose studied by integrated terahertz-band spectroscopy

“…The temperature was varied from 14 to 320 K using a liquid-helium flow cryostat system (Helitran LT-3B, Advanced Research Systems) [8,50,64]. We employed the Cherenkov-type MgO-doped LiNbO 3 emitter (TAS7500SU, Advantest Corp.) [8,[64][65][66] for the room-temperature broadband measurement.…”