dc.contributor.author | Mokhtarpour, Laleh | |
dc.date.accessioned | 2016-01-18T15:55:26Z | |
dc.date.available | 2016-01-18T15:55:26Z | |
dc.date.issued | 2016-01-18T15:55:26Z | |
dc.identifier.uri | http://hdl.handle.net/10222/65305 | |
dc.description.abstract | Optical experiments reveal the fact that real laser pulses have random fluctuations in their
amplitude and phase that crucially affect pulse evolution. Statistical optics considers the
random nature of light to give a more realistic description of laser pulses behavior.
Generation of ultrashort pulses, operating at frequencies close to internal transition
frequencies of medium atoms, motivated the growing interest in studying on-resonance
light-matter interactions. Moreover, there exist optical phenomena that only occur at optical
resonance. Thus, near resonance light-matter interactions are of great importance.
In this dissertation, statistical properties of ultrashort pulses propagating in different
linear and nonlinear media near optical resonance is studied. Various partially coherent
pulses are simulated and effects of initial statistical properties of pulses on their propagation
in resonant absorbing and amplifying media are explored. The research performed
throughout this thesis leads to following results.
1- Various classes of ultrashort self-similar partially coherent pulses are explored along
with closed form expressions for their correlation functions. Also, the evolution of coherence
properties of pulses upon their short-distance and long-distance propagation is
investigated.
2- Generic partially coherent pulses are simulated and their global and local correlation
properties upon propagation in resonant linear absorber media are studied. The evolution of
the coherence functions of pulses shows that partially coherent pulses are strongly affected
by the medium regarding to their coherence levels. A correlation area theorem is also
derived to describe global correlation properties of stochastic pulses propagating in such
media.
3- Evolution of small-area pulse coherence properties, propagating in linear amplifiers
near optical resonance, is studied. Our simulation results reveal that more coherent pulses
are amplified more effectively by the medium than are their less coherent counterparts.
4- Propagation of partially coherent pulses in resonant, inhomogenously broadened
nonlinear media is simulated. Stochastic pulses of different coherence levels are generated
to investigate effects of initial properties of pulses on their long-term evolution. We also
provide evidence of self-induced transparency phenomena and soliton formation for relatively
coherent pulses. Also, evolution of the coherence functions reveal that low-coherence pulses lose their coherence level upon propagation faster than do highly coherent pulses. | en_US |
dc.language.iso | en | en_US |
dc.subject | Nonlinear optics | en_US |
dc.subject | Linear Optics | en_US |
dc.subject | Optical Coherence | en_US |
dc.subject | Statistical Optics | en_US |
dc.subject | Ultrashort Pulses | en_US |
dc.subject | Optical Resonance | en_US |
dc.title | PARTIALLY COHERENT PULSE PROPAGATION IN RESONANT LINEAR AND NONLINEAR MEDIA | en_US |
dc.type | Thesis | |
dc.date.defence | 2016-01-07 | |
dc.contributor.department | Department of Electrical & Computer Engineering | en_US |
dc.contributor.degree | Doctor of Philosophy | en_US |
dc.contributor.external-examiner | Dr. Olga Korotkova | en_US |
dc.contributor.graduate-coordinator | Dr. Jason Gu | en_US |
dc.contributor.thesis-reader | Dr. zhizhang (David) Chen | en_US |
dc.contributor.thesis-reader | Dr. William Philips | en_US |
dc.contributor.thesis-supervisor | Dr. Sergey Ponomarenko | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Yes | en_US |
dc.contributor.copyright-release | Yes | en_US |