Picture of industrial chimneys polluting horizon

Open Access research shaping international environmental governance...

Strathprints makes available scholarly Open Access content exploring environmental law and governance, in particular the work of the Strathclyde Centre for Environmental Law & Governance (SCELG) based within the School of Law.

SCELG aims to improve understanding of the trends, challenges and potential solutions across different interconnected areas of environmental law, including capacity-building for sustainable management of biodiversity, oceans, lands and freshwater, as well as for the fight against climate change. The intersection of international, regional, national and local levels of environmental governance, including the customary laws of indigenous peoples and local communities, and legal developments by private actors, is also a signifcant research specialism.

Explore Open Access research by SCELG or the School of Law. Or explore all of Strathclyde's Open Access research...

Multiwatt, continuous-wave tunable, diamond Ramam laser with intracavity frequency-doubling to the visible region

Parrotta, Daniele Carmine and Kemp, Alan and Dawson, Martin and Hastie, Jennifer (2013) Multiwatt, continuous-wave tunable, diamond Ramam laser with intracavity frequency-doubling to the visible region. IEEE Journal of Selected Topics in Quantum Electronics, 19 (4). ISSN 1077-260X

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Multiwatt emission from a continuous-wave diamond Raman laser pumped within a diode-pumped InGaAs-based semiconductor disk laser (SDL) is reported. The Raman laser achieved a maximum output power of 4.4 W at 1228 nm with a beam quality factor (M2) of 1.4 and diode-to-Stokes conversion efficiency of 14.2%. Via tuning of the SDL oscillation wavelength, the diamond Raman laser was tuned from 1209 to 1256 nm, with output power exceeding 4 W over a 10-nm range. The evolution of the emission spectra and beam quality of both the SDL and the Raman laser have been investigated for different pump powers, revealing the onset of spectral broadening and beam “clean-up” effects with increasing power. The SDL spectral linewidth and beam overlap are then taken into account in calculations of the efficiency of the Raman laser. Using intracavity frequency-doubling in lithium triborate (LBO) within the Raman laser, up to 1.5-W output power at orange wavelengths was achieved with M2 <; 1.3 and linewidth ~0.1 nm full-width at half-maximum. Tuning of the visible emission was achieved via tuning of the SDL and temperature control of the LBO and covered the range 604.5-619.5 nm.