6533b7d8fe1ef96bd126a22c
RESEARCH PRODUCT
Reduction of Convective Low-Frequency Noise in Thermal Lens Spectrometry
M. A. Rius RevertM.c.garcía Alvarez-coqueG.ramis RamosE. F. Simó Alfonsosubject
Spectrometerbusiness.industryChemistryInfrasound010401 analytical chemistry01 natural sciences0104 chemical scienceslaw.invention010309 opticsLens (optics)Opticslaw0103 physical sciencesThermalPinhole (optics)CoaxialbusinessInstrumentationImage resolutionSpectroscopyNoise (radio)description
The construction and optimization of a thermal lens spectrometer with coaxial pump/probe configuration is reported. The low-frequency noise of convective origin is studied in detail, and it is demonstrated that a horizontal slit, instead of a pinhole, can be used as a simple way of reducing the noise to a negligible level without losing sensitivity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-11-01 | Applied Spectroscopy |