Backward Wave Oscillator Based THz Spectroscopy, Diatomic Formalism and Optically Pumped Lasers |
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Authors: | Indranath Mukhopadhyay and Romola D'Cunha |
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Institution: | (1) College of Natural Sciences, Dakota State University, Madison, SD, 57042;(2) Bhabha Atomic Research Center, Mumbai, 400085, India |
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Abstract: | In this paper the Backward Wave Oscillator (BWO) based spectroscopy technique and its application to molecular spectroscopy especially to diatomic molecules have been discussed. This is a new and electronically controlled technique with enormous capabilities most of which are yet to be exploited. This paper also presents a part of the culmination of the collective efforts in developing a cohesive and consolidated enunciation of the spectroscopic parameters and their relationship to effective molecular Hamiltonians for diatomic formalism, linear four- atomic formalism & quasi-linearity, Watson Hamiltonian and the complexities in symmetric and asymmetric top spectral structures and its relationship to optical pumping and / or interstellar space. All these considered together present a beautiful and consistent picture of molecular spectroscopy and THz Electromagnetic sources. |
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Keywords: | Hamiltonian Internal Rotation Energy Levels Optical Pumping Lasers IVR BWO |
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