Title :
Terahertz Time-Domain Spectroscopy of D2O
Author :
Torcedo, J.C. ; Tom, H.W.K.
Author_Institution :
Dept. of Phys. & Astron., Univ. of California, Riverside, CA
Abstract :
The dielectric spectrum of D2O between 45 GHz and 1.7 THz is measured using terahertz time-domain spectroscopy. The data is modeled as a sum of Debye relaxations and Lorentzian oscillators. Similar to previous studies on H2O, evidence is shown of anti-correlated effects in bulk D2O. Work is being done to extend spectrometer bandwidth to 10 GHz to measure a possible low frequency oscillation at 11.2degC, the temperature of maximum density.
Keywords :
dielectric relaxation; heavy water; submillimetre wave spectra; D2O; Debye relaxations; Lorentzian oscillators; dielectric spectrum; frequency 45 GHz to 1.7 THz; frequency oscillation; temperature 11.2 C; terahertz time-domain spectroscopy; Dielectric measurements; Extraterrestrial measurements; Frequency; Laser beams; Laser excitation; Spectroscopy; Submillimeter wave measurements; Temperature; Time domain analysis; Water;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665538
