FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W850089620> ?p ?o ?g. }

• W850089620 abstract " Copper vapour laser (CVL) pumped dye lasers offer a source of high power, kilohertz repetition rate, tunable narrow-bandwidth radiation suitable for many spectroscopic applications in the visible and infra-red. Furthermore, the nonlinear frequency conversion of CVL-pumped dye laser radiation extends the wavelength range of these laser sources into the blue and ultra-violet. A series of experimental investigations have been undertaken to gain a physical understanding of the fundamental parameters necessary for the optimization of the CVL-pumping of dye lasers. Issues addressed include the influence of the CVL cavity design, the pump beam polarization and geometry, the dye oscillator cavity design, the choice of grating materials, and the dye flow rate. A model based on the rate equation analysis of the kinetic processes relevant to optical amplification in dye lasers has been developed, and the results have been used to design amplifiers with extraction efficiencies in excess of 45 %. As a result of the aforementioned investigations, three commercially available pulsed dye lasers have been successfully optimized for CVL-pumping for the first time. Once modified, these dye lasers have typically shown conversion efficiencies in excess of 20%, with frequency bandwidths as narrow as 800MHz, and beam qualities approaching the diffraction limit. The theory of second harmonic generation is reviewed, and a suite of corresponding computer models have been developed to form the basis for a coherent experimental investigation of UV generation using the CVL and CVL-pumped dye lasers. CVL SHG has been demonstrated in jS-barium borate (BBO) and lithium triborate (LBO), with SHG efficiencies in excess of 18% realized for the CVL 511nm line in BBO. For the first time, an experimental comparison of spherically and elliptically focused second harmonic generation has been undertaken. Optimized elliptical focusing is found to be up to 30% more efficient than using conventional spherical focusing in agreement with theoretical predictions. The superior divergence and transverse coherence of CVL-pumped dye lasers, in comparison to those of the CVL, is reflected in the SHG efficiencies achieved in BBO, LBO and lithium iodate. Conversion efficiencies approaching 40% have been demonstrated in lithium iodate, with harmonic conversion coefficients approaching 2400mW/W2 realized at low input powers. The Boyd and Kleinman theory of SHG with focused Gaussian beams is found to provide an excellent description of SHG with CVL-pumped dye laser radiation, and accurately predicts the optimum strength of focusing and harmonic conversion coefficient. For the first time, sum frequency mixing (SFM) of the CVL with a dye laser has been demonstrated, and found to provide a potentially efficient source for tunable UV radiation. Finally, the application of CVL-pumped dye lasers to resonant ionization mass spectrometry and tropospheric hydroxyl (OH) radical detection is discussed, and the spectroscopic potential of a frequency doubled CVL-pumped dye is demonstrated by recording the absorption spectrum of OH at 308nm." @default.
• W850089620 created "2016-06-24" @default.
• W850089620 creator A5025735962 @default.
• W850089620 date "1993-01-01" @default.
• W850089620 modified "2023-09-23" @default.
• W850089620 title "High repetition rate tunable lasers" @default.
• W850089620 hasPublicationYear "1993" @default.
• W850089620 type Work @default.
• W850089620 sameAs 850089620 @default.
• W850089620 citedByCount "0" @default.
• W850089620 crossrefType "dissertation" @default.
• W850089620 hasAuthorship W850089620A5025735962 @default.
• W850089620 hasConcept C10730404 @default.
• W850089620 hasConcept C120665830 @default.
• W850089620 hasConcept C121332964 @default.
• W850089620 hasConcept C148651041 @default.
• W850089620 hasConcept C192562407 @default.
• W850089620 hasConcept C2776115805 @default.
• W850089620 hasConcept C30713254 @default.
• W850089620 hasConcept C49040817 @default.
• W850089620 hasConcept C520434653 @default.
• W850089620 hasConcept C60760409 @default.
• W850089620 hasConcept C6260449 @default.
• W850089620 hasConcept C97749803 @default.
• W850089620 hasConceptScore W850089620C10730404 @default.
• W850089620 hasConceptScore W850089620C120665830 @default.
• W850089620 hasConceptScore W850089620C121332964 @default.
• W850089620 hasConceptScore W850089620C148651041 @default.
• W850089620 hasConceptScore W850089620C192562407 @default.
• W850089620 hasConceptScore W850089620C2776115805 @default.
• W850089620 hasConceptScore W850089620C30713254 @default.
• W850089620 hasConceptScore W850089620C49040817 @default.
• W850089620 hasConceptScore W850089620C520434653 @default.
• W850089620 hasConceptScore W850089620C60760409 @default.
• W850089620 hasConceptScore W850089620C6260449 @default.
• W850089620 hasConceptScore W850089620C97749803 @default.
• W850089620 hasLocation W8500896201 @default.
• W850089620 hasOpenAccess W850089620 @default.
• W850089620 hasPrimaryLocation W8500896201 @default.
• W850089620 hasRelatedWork W1654855122 @default.
• W850089620 hasRelatedWork W1970252086 @default.
• W850089620 hasRelatedWork W1971896349 @default.
• W850089620 hasRelatedWork W1981013709 @default.
• W850089620 hasRelatedWork W1983745330 @default.
• W850089620 hasRelatedWork W1990179865 @default.
• W850089620 hasRelatedWork W1992262699 @default.
• W850089620 hasRelatedWork W2020485646 @default.
• W850089620 hasRelatedWork W2035262211 @default.
• W850089620 hasRelatedWork W2058939841 @default.
• W850089620 hasRelatedWork W2064327805 @default.
• W850089620 hasRelatedWork W2072349271 @default.
• W850089620 hasRelatedWork W2089294508 @default.
• W850089620 hasRelatedWork W2091063990 @default.
• W850089620 hasRelatedWork W2150995464 @default.
• W850089620 hasRelatedWork W2369247101 @default.
• W850089620 hasRelatedWork W2468513525 @default.
• W850089620 hasRelatedWork W2516741840 @default.
• W850089620 hasRelatedWork W3015140584 @default.
• W850089620 hasRelatedWork W2108744714 @default.
• W850089620 isParatext "false" @default.
• W850089620 isRetracted "false" @default.
• W850089620 magId "850089620" @default.
• W850089620 workType "dissertation" @default.