Title :
Terahertz spectroscopy of vibrational modes of molecular crystal of sucrose
Author :
Kröll, J. ; Darmo, J. ; Unterrainer, K.
Author_Institution :
Inst. fur Photonik, Technische Univ. Wien, Vienna, Austria
fDate :
27 Sept.-1 Oct. 2004
Abstract :
A molecular single crystal of sucrose is studied by a terahertz time-domain spectroscopy. The crystal´s vibrational modes in the frequency range of 0.1-4 THz are identified. In addition, a mapping of dipoles of these vibrational modes to the crystal orientation is performed. The measured spectra for the various crystal orientations identify clearly an orientation of dipole associated with these modes. The quadrupole moments are observed.
Keywords :
crystal orientation; submillimetre wave spectra; sugar; vibrational modes; 0.1 to 4 THz; crystal orientation; crystal vibrational modes; dipole mappings; dipole orientation; molecular single crystal; quadrupole moments; sucrose; terahertz time-domain spectroscopy; Atom optics; Chemicals; Chemistry; Crystallography; Electromagnetic wave absorption; Frequency; Optical pulse generation; Photonic crystals; Spectroscopy; Sugar;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1421967
