Cover Image

Optimization of a rhodamine 6G-doped PMMA thin-slab laser

Poly(methyl methacrylate) (PMMA) and Rhodamine 6G (Rh6G) were first dissolved in chloroform, then dried and milled into powdery preform for fabrication into rectangular thin slabs (< 1 mm) by a hot-press molding technique. Aluminum was coated on two surfaces of dye-doped PMMA thin slabs as reflec...

Full description

Saved in:
Bibliographic Details
Main Authors: Tou, T.Y., Yap, S.S., Chin, Oi Hoong, Ng, S.W.
Format: Article
Published: 2007
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/7715/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.7715
record_format eprints
spelling my.um.eprints.77152019-12-06T06:17:47Z http://eprints.um.edu.my/7715/ Optimization of a rhodamine 6G-doped PMMA thin-slab laser Tou, T.Y. Yap, S.S. Chin, Oi Hoong Ng, S.W. QC Physics Poly(methyl methacrylate) (PMMA) and Rhodamine 6G (Rh6G) were first dissolved in chloroform, then dried and milled into powdery preform for fabrication into rectangular thin slabs (< 1 mm) by a hot-press molding technique. Aluminum was coated on two surfaces of dye-doped PMMA thin slabs as reflectors. Conversion efficiency, peak lasing wavelength and spectral bandwidth of dye laser emissions from these slabs, which were transversely pumped by a nitrogen laser, were measured as a function of the dye concentration, slab thickness, and aluminum coatings. Re-absorption of back-scattered fluorescence due to aluminum coating on the opposite surface increased the conversion efficiency from 10.5 to 15 while that on the back surface further increased it to 17.5. The operation lifetime of 3000 pulses at 50 reduction in the dye laser output, as compared to earlier work on thicker slabs (5 mm), suggested that re-absorption of fluorescence did not cause significant photo-degradation of Rh6G. As the dye laser action was confirmed in a thin slab, the operation lifetime may represent a more realistic photostability of Rh6G in PMMA matrix. (c) 2006 Elsevier B.V. All rights reserved. 2007 Article PeerReviewed Tou, T.Y. and Yap, S.S. and Chin, Oi Hoong and Ng, S.W. (2007) Optimization of a rhodamine 6G-doped PMMA thin-slab laser. Optical Materials, 29 (8). pp. 963-969. ISSN 0925-3467 10.1016/j.optmat.2005.11.035
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Tou, T.Y.
Yap, S.S.
Chin, Oi Hoong
Ng, S.W.
Optimization of a rhodamine 6G-doped PMMA thin-slab laser
description Poly(methyl methacrylate) (PMMA) and Rhodamine 6G (Rh6G) were first dissolved in chloroform, then dried and milled into powdery preform for fabrication into rectangular thin slabs (< 1 mm) by a hot-press molding technique. Aluminum was coated on two surfaces of dye-doped PMMA thin slabs as reflectors. Conversion efficiency, peak lasing wavelength and spectral bandwidth of dye laser emissions from these slabs, which were transversely pumped by a nitrogen laser, were measured as a function of the dye concentration, slab thickness, and aluminum coatings. Re-absorption of back-scattered fluorescence due to aluminum coating on the opposite surface increased the conversion efficiency from 10.5 to 15 while that on the back surface further increased it to 17.5. The operation lifetime of 3000 pulses at 50 reduction in the dye laser output, as compared to earlier work on thicker slabs (5 mm), suggested that re-absorption of fluorescence did not cause significant photo-degradation of Rh6G. As the dye laser action was confirmed in a thin slab, the operation lifetime may represent a more realistic photostability of Rh6G in PMMA matrix. (c) 2006 Elsevier B.V. All rights reserved.
format Article
author Tou, T.Y.
Yap, S.S.
Chin, Oi Hoong
Ng, S.W.
author_facet Tou, T.Y.
Yap, S.S.
Chin, Oi Hoong
Ng, S.W.
author_sort Tou, T.Y.
title Optimization of a rhodamine 6G-doped PMMA thin-slab laser
title_short Optimization of a rhodamine 6G-doped PMMA thin-slab laser
title_full Optimization of a rhodamine 6G-doped PMMA thin-slab laser
title_fullStr Optimization of a rhodamine 6G-doped PMMA thin-slab laser
title_full_unstemmed Optimization of a rhodamine 6G-doped PMMA thin-slab laser
title_sort optimization of a rhodamine 6g-doped pmma thin-slab laser
publishDate 2007
url http://eprints.um.edu.my/7715/
_version_ 1654960625750638592
score 13.211869

Similar Items