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Generation of tunable medium infrared radiation by non-linear optical mixing of dye laser outputs

Generation of tunable medium infrared radiation by non-linear optical mixing of dye laser outputs
Generation of tunable medium infrared radiation by non-linear optical mixing of dye laser outputs
The first demonstration of tunable infrared generation by down-conversion in AgGaS2 is described. Two different arrangements for down-conversion in AgGaS2 have been used. The first used a ruby and a ruby-pumped dye laser and the second used two flashlamp-pumped dye lasers. The dye laser systems used for the mixing process are also described. Using the flashlamp-pumped system, a tuning range of 8.7 to 11.6 µm was achieved. Using the ruby and ruby-pumped-dye-laser arrangement a wider infrared tuning range (4.6 to 12 µm) has been obtained. A similar wide tuning range of 4 to 11.5 µm has also been demonstrated in proustite (Ag3AsS3) crystals.

Measurements have been made of the laser induced damage threshold of AgGaS2 at wavelengths over the range 580-625 nm.

Using these results, estimates have been made of expected infrared power and tuning range that can be obtained using more powerful flashlamp-pumped dye lasers and larger crystals of AgGaS2.
Rampal, V.V.
67b1a8f8-c511-4f1f-8ecd-b7ab28441738
Rampal, V.V.
67b1a8f8-c511-4f1f-8ecd-b7ab28441738
Hanna, David
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Rampal, V.V. (1973) Generation of tunable medium infrared radiation by non-linear optical mixing of dye laser outputs. University of Southampton, Department of Electronics, Doctoral Thesis, 144pp.

Record type: Thesis (Doctoral)

Abstract

The first demonstration of tunable infrared generation by down-conversion in AgGaS2 is described. Two different arrangements for down-conversion in AgGaS2 have been used. The first used a ruby and a ruby-pumped dye laser and the second used two flashlamp-pumped dye lasers. The dye laser systems used for the mixing process are also described. Using the flashlamp-pumped system, a tuning range of 8.7 to 11.6 µm was achieved. Using the ruby and ruby-pumped-dye-laser arrangement a wider infrared tuning range (4.6 to 12 µm) has been obtained. A similar wide tuning range of 4 to 11.5 µm has also been demonstrated in proustite (Ag3AsS3) crystals.

Measurements have been made of the laser induced damage threshold of AgGaS2 at wavelengths over the range 580-625 nm.

Using these results, estimates have been made of expected infrared power and tuning range that can be obtained using more powerful flashlamp-pumped dye lasers and larger crystals of AgGaS2.

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More information

Published date: November 1973
Organisations: University of Southampton, Electronics & Computer Science

Identifiers

Local EPrints ID: 394745
URI: https://eprints.soton.ac.uk/id/eprint/394745
PURE UUID: ed87df59-8c90-483e-9a07-a14195363923

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Date deposited: 30 Jun 2016 14:07
Last modified: 17 Jul 2017 18:57

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