Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1829 for “"Raman"”.
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Stimulated Raman and hyper-Raman scattering in the FIR region
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-28T13:59:43Z No. of bitstreams: 1 1980_kim.pdf: 2258540 bytes, checksum: 8fe0d75ab8a852db2e65274e4407c4b5 (MD5)
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Raman Scattering From Metals
Made available in DSpace on 2015-05-13T15:22:07Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7726681.PDF: 7183986 bytes, checksum: babebdd7c0d32064a686f3790ecb3ecf (MD5) Previous issue date: 1977
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Molecular Raman in KXe
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01
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Backward stimulated raman scattering
… an experimental investigation of the stimulated Raman effect. A new prediction is made for the steady state linewidth of the forward Stokes output in the presence of a depleted pump. The theory is developed with the aim of gaining an understanding of the mechanism which favours stimulated Raman …
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Applications of Raman spectroscopy.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Biology.
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Raman and Surface-Enhanced Raman Spectroscopy Imaging of Droplets: Characterization and Environmental Implications
… tools for droplet characterization. We used Raman and surface-enhanced Raman spectroscopy (SERS) based imaging as such tools due to their capacity for simultaneous collection of abundant molecular information inside droplets and their potential to collect detailed images of droplet component …
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Raman Spectroscopy Of Glasseswith High And Broad Raman Gain In The Boson Peak Region
This thesis investigates Raman spectra of novel glasses and their correlation with structure for Raman gain applications. Raman gain for all-optical amplification by fibers depends significantly on the cross section for spontaneous Raman scattering allowing to compare signal strength and spectral …
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Étude Raman des supraconducteurs organiques
On a étudié des spectres Raman des supraconducteurs organiques ?-(ET) 2 Cu[N(CN) 2 ]Cl et ?-(ET) 2 Cu[N(CN) 2 ]Br .5 Cl .5 sous pression en fonction de la température et comparé nos résultats avec ceux obtenus précédemment dans le composé ?-(ET) 2 Cu[N(CN) 2 ]Br. Les vibrations C=C et CH 2 sont …
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Forensic applications of raman spectroscopy
The forensic applications of Raman spectroscopy have been explored and extended using the development of novel sampling techniques and task-specific instrumentation described in this thesis. The phenomenon of Raman scattering, enhanced Raman scattering and their relevance in forensic investigations …
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Broadly tuneable crystalline Raman lasers
… of a continuous-wave third-Stokes crystalline Raman laser. This was achieved via intracavity Raman conversion of a vertical external cavity surface emitting laser (VECSEL), also known as a semiconductor disk laser (SDL). The VECSEL-pumped Raman laser achieved Watt-level output and broad …
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Computational Raman imaging and thermography
… In this thesis, we present our home-built Raman microscope for Raman imaging and thermography. The performance of this instrument is enhanced by computational approaches. The body of the thesis will be divided into three parts. First, the instrumentation of our setup are introduced. Second, …
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Resonant Raman scattering in graphene
… the formulation of a rigorous theory of resonant Raman scattering in graphene, the calculation of the so-obtained Raman matrix element K2f,1o for the 2D Raman mode with the full inclusion of the matrix elements and a physically appealing bridge between theory and experiment by eschewing the …
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Advanced Raman spectroscopy for bioprocess monitoring
The Raman -effect was discovered almost 90 years ago. It took a long time until the importance of Raman spectroscopy was fully understood and accepted for process industrial applications. Still today the usage is limited to a small application area. During the last decades advances in the …
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Raman Scattering in GaN and ZnO
The Micro-Raman scattering technique has been used for the study of GaN and ZnO. Capabilities of the Raman technique and existing literature on Raman spectroscopy in GaN and ZnO are reviewed. About 50 GaN and ZnO samples with a wide range of properties are studied. From the analysis of positions of …
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Raman Studies of Acyl-Homoserine Lactones
<p>This thesis describes the use of various Raman spectroscopy techniques for the detection of N-acyl homoserine lactones (AHLs), which are quorum sensing molecules used in bacterial communication. The advantage of using Raman spectroscopy over other techniques is the possibility of in-situ …
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Cladding-pumped Raman fibre laser sources
In this thesis, I investigate cladding-pumped Raman fibre lasers and amplifiers. Such devices, offering a novel way to generate Raman gain, combine the advantages of the hugely successful cladding-pumped rare-earth doped fibre lasers with those of stimulated Raman scattering. They not only inherit …
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Application of raman spectroscopy in pharmaceuticals
Experimental research on the use of Raman spectroscopy as an in- and on-line sensing tool and a complementary characterization technique for pharmaceutical applications is presented in this thesis. In the first chapter following a broad overview, the use of Raman spectroscopy, together with x-ray …
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LASER-RAMAN ΦΑΣΜΑΤΑ ΟΥΣΙΩΝ ΕΝ ΠΡΟΣΡΟΦΗΣΕΙ
… SUBJECT OF THIS THESIS IS THE STUDY OF THE LASER-RAMAN SPECTRA OF CERTAIN SUBSTANCES IN THE STATE OF ADSORPTION ON THE FOLLOWING SUBSTRATES: SIO2, AL2O3, SIO2, AL2O3 ON SIO2 AND BENTONITE. THE SUBSTANCES USED WERE NAPHTHALENE, TRIPHENYLMETHANE, (AND SOME OF ITS DERIVATIVES), TRIPHENYLAMINE, …
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Raman and fluorescence spectra of azabenzenes
… transition should show the greatest activity in Raman scattering, and especially so in the pre-resonance Raman region. The pre-resonance effect is an increase of intensity of a Raman line as the exciting frequency approaches that of the weak electronic transition.</p> <p>The ��<sub>10a</sub> …
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Raman amplification and performance altering effects
… investigation into several applications of the Raman scattering effect in communication optical fibres as well as how some of these applications can be modified to enhance the resulting performance. The majority of the work contained within is based on laboratory results using many commercially …
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