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Multifrequency Raman Generation in the Transient Regime
| Content Provider | Semantic Scholar |
|---|---|
| Author | Turner, Fraser |
| Copyright Year | 2006 |
| Abstract | I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. iii Abstract Two colour pumping was used to investigate the short-pulse technique of Multifrequency Raman Generation (MRG) in the transient regime of Raman scattering. In the course of this study we have demonstrated the ability to generate over thirty Raman orders spanning from the infrared to the ultraviolet, investigated the dependence of this generation on the pump intensities and the dispersion characteristics of the hollow-fibre system in which the experiment was conducted, and developed a simple computer model to help understand the exhibited behaviours. These dependence studies have revealed some characteristics that have been previously mentioned in the literature, such as the competition between MRG and self-phase modulation, but have also demonstrated behaviours that are dramatically different than anything reported on the subject. Furthermore, through a simple modification of the experimental apparatus we have demonstrated the ability to scatter a probe pulse into many Raman orders, generating bandwidth comparable to the best pump-probe experiments of MRG. By using a numeric fast Fourier transform, we predict that our spectra can generate pulses as short as 3.3fs, with energies an order of magnitude larger than pulses of comparable duration that are made using current techniques. iv Acknowledgements First and foremost, I wish to thank my supervisor Dr. Donna Strickland for the fantastic experience I have had working in her research lab. Under her guidance I had the opportunity to participate in conferences and collaborations that have served to advance my professional skills and experience, far beyond what I expected when I first came to Waterloo. Her patience with my frequent visits (and the occasional argumentativeness), coupled with her endless encouragement has allowed me to feel free to express my opinions and explore what I felt to be important, and for this freedom I am very grateful. I would also like to thank Dr. Joseph Sanderson, whom in essence was my second supervisor, always willing to discuss my work and lend a wrench or waveplate when needed. Many parts of this experiment were developed or maintained by his group, such as the hollow-fibre apparatus, its vacuum system, and the front-end oscillator. Without these contributions, this experiment would not have been … |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://etd.uwaterloo.ca/etd/fcturner2006.pdf |
| Alternate Webpage(s) | https://uwspace.uwaterloo.ca/bitstream/handle/10012/2960/fcturner2006.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
