Investigation of the lasing mechanism HCN molecular laser
Investigation of the lasing mechanism HCN molecular laser
This thesis describes the construction and operation of various HCN laser systems with a view to determine the mechanism of operation. In one system to simplify the processes occuring within the discharge tube, nitrogen was excited by a microwave discharge before entering the cavity. This coupled with the thermal decomposition of a peroxide reduced the d.c. threshold current for laser operation down to 5mA. CW laser oscillation in pure HCN was studied together with the influence of foreign gases on the laser. It is concluded that a simple one or two stage process does not produce the population inversion but that a multiple stage process, which could be difficult to identify, is always involved.
University of Southampton
Khan, Rafaat Husain
c8fe9290-9175-48c9-b0c1-459da9071229
1970
Khan, Rafaat Husain
c8fe9290-9175-48c9-b0c1-459da9071229
Khan, Rafaat Husain
(1970)
Investigation of the lasing mechanism HCN molecular laser.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
This thesis describes the construction and operation of various HCN laser systems with a view to determine the mechanism of operation. In one system to simplify the processes occuring within the discharge tube, nitrogen was excited by a microwave discharge before entering the cavity. This coupled with the thermal decomposition of a peroxide reduced the d.c. threshold current for laser operation down to 5mA. CW laser oscillation in pure HCN was studied together with the influence of foreign gases on the laser. It is concluded that a simple one or two stage process does not produce the population inversion but that a multiple stage process, which could be difficult to identify, is always involved.
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Published date: 1970
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Local EPrints ID: 458578
URI: http://eprints.soton.ac.uk/id/eprint/458578
PURE UUID: 946431b2-87e7-412f-9d57-5b61af7b8936
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Date deposited: 04 Jul 2022 16:51
Last modified: 16 Mar 2024 18:24
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Author:
Rafaat Husain Khan
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