ABSTRACT
A. M. Bullock and A. N. Dharamsi, J. App. Phys. Letts., 84, 6929, 1998
An Investigation of Interference
between Absorption Lines by Wavelength Modulation Spectroscopy
Wavelength Modulation Spectroscopy is used to demonstrate
that extremely weak absorption lines can be measured even when these lines
suffer from interference from the wings of adjacent stronger lines.It is shown that the use of detection at
several harmonics allows such interference to be examined clearly and
conveniently.The results of
experimental measurements on a weak magnetic dipole driven, spin-forbidden line
in the Oxygen A Band, which experiences interference from the wings of a pair
of adjacent lines towards the blue and red regions of line center, are
presented. A comparison of the
experimental results to theory is given.
Back to Research to Related to Wavelength
Modulation Spectroscopy