EP 1685370 A1 20060802 - METHOD OF SPECTROSCOPY
Title (en)
METHOD OF SPECTROSCOPY
Title (de)
SPEKTROSKOPIEVERFAHREN
Title (fr)
PROCEDE DE SPECTROSCOPIE
Publication
Application
Priority
- GB 2004004693 W 20041105
- GB 0326088 A 20031107
Abstract (en)
[origin: WO2005047832A1] A spectroscopy method and apparatus comprises an excitation source arranged to excite a vibrational mode of a sample and provide multi-dimensional spectral information by varying the excitation in a time or frequency domain. A parameter of a further excitation source or of the sample is controlled so as to provide coherence spectroscopy by ensuring that a non-resonant local oscillator field generated in the sample dominates a homodyne signal generated in the sample. As a result heterodyne detection is achieved in a manner allowing an output signal linearly dependent upon concentration providing improved sensitivity. In an alternative embodiment where heterodyning is not used, an ultraviolet or visible excitation excites an electronic resonance, whereafter fluorescence is measured.
IPC 8 full level
G01J 3/10 (2006.01); G01J 3/44 (2006.01); G01N 21/35 (2006.01); G01N 21/64 (2006.01)
CPC (source: EP)
G01J 3/108 (2013.01); G01J 3/44 (2013.01); G01N 21/35 (2013.01); G01N 21/65 (2013.01); G01N 21/636 (2013.01); G01N 21/64 (2013.01); G01N 2021/655 (2013.01)
Citation (search report)
See references of WO 2005047832A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005047832 A1 20050526; CN 1902471 A 20070124; EP 1685370 A1 20060802; GB 0326088 D0 20031210
DOCDB simple family (application)
GB 2004004693 W 20041105; CN 200480040045 A 20041105; EP 04798417 A 20041105; GB 0326088 A 20031107