Terahertz Characteristics of Liquid D{sub 2}O in H{sub 2}O
- Department of Physics, University of Seoul, Seoul (Korea, Republic of)
D{sub 2}O used in nuclear power generation is very slightly different from H{sub 2}O. Deuterium (D) is the isotope of hydrogen (H) and has one more neutron than H. D{sub 2}O is heaver than H{sub 2}O by about 11% and its melting and boiling points are 3.81 deg. C and 101.42 deg. C, respectively. Moreover, D{sub 2}O is toxic. It is harmful for human body if it replaces more than approximately 25-50% of a human's body water. So, knowledge of the properties of D{sub 2}O included in H{sub 2}O is necessary. The confinement energy and hydrogen bonding energy of large molecules are in the terahertz frequency region (2{approx}10 THz, 3{approx}66 cm{sup -1}). Particularly, the polar molecules such as H{sub 2}O and D{sub 2}O react to this frequency region well because the time of hydrogen relaxation motion is subpicosecond. Terahertz time-domain spectroscopy (THz-TDS) using terahertz pulses has been used in the study of ultrafast dynamics of hydrogen bonds in biomolecules and carriers in semiconductors. We obtained the refractive index and power absorption of H{sub 2}O and D{sub 2}O at room temperature. The results show that the refractive index and power absorption of H{sub 2}O are larger than for D{sub 2}O.
- OSTI ID:
- 21301122
- Journal Information:
- AIP Conference Proceedings, Vol. 1119, Issue 1; Conference: 3. IUPAP international conference on women in physics, Seoul (Korea, Republic of), 8-10 Oct 2008; Other Information: DOI: 10.1063/1.3137799; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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