• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 13
  • 2
  • 1
  • Tagged with
  • 17
  • 17
  • 17
  • 5
  • 4
  • 3
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Dynamics of resonant degenerate four-wave mixing and applications in gaseous media

Kaczmarek, M. January 1991 (has links)
No description available.
2

Low optical signal detection in biological materials SNR considerations and novel techniques /

McDowell, Emily Jayne. Yang, Changhuei. Dabiri, John Oluseun, January 1900 (has links)
Thesis (Ph. D.) -- California Institute of Technology, 2010. / Title from home page (viewed 03/03/2010). Advisor and committee chair names found in the thesis' metadata record in the digital repository. Includes bibliographical references.
3

Studies of novel photorefractive behaviour in self-pumped barium titanate

Smout, A. M. C. January 1988 (has links)
No description available.
4

QUANTUM THEORY OF MULTIWAVE MIXING (RESONANCE FLUORESCENCE, SATURATION SPECTROSCOPY, MODULATION, PHASE CONJUGATION, QUANTUM NOISE).

HOLM, DAVID ALLEN. January 1985 (has links)
This dissertation formulates and applies a theory describing how one or two strong classical waves and one or two weak quantum mechanical waves interact in a two-level medium. The theory unifies many topics in quantum optics, such as resonance fluorescence, saturation spectroscopy, modulation spectroscopy, the build up of laser and optical bistability instabilities, and phase conjugation. The theory is based on a quantum population pulsation approach that resembles the semiclassical theories, but is substantially more detailed. Calculations are performed to include the effects of inhomogeneous broadening, spatial hole burning, and Gaussian transverse variations. The resonance fluorescence spectrum in a high finesse optical cavity is analyzed in detail, demonstrating how stimulated emission and multiwave processes alter the spectrum from the usual three peaks. The effects of quantum noise during the propagation of weak signal and conjugate fields in phase conjugation and modulation spectroscopy are studied. Our analysis demonstrates that quantum noise affects not only the intensities of the signal and conjugate, but also their relative phase, and in particular we determine a quantum limit to the semiclassical theory of FM modulation spectroscopy. Finally, we derive the corresponding theory for the two-photon, two-level medium. This yields the first calculation of the two-photon resonance fluorescence spectrum. Because of the greater number of possible interactions in the two-photon two-level model, the theoretical formalism is considerably more complex, and many effects arise that are absent in the one-photon problem. We discuss the role of the Stark shifts on the emission spectrum and show how the Rayleigh scattering is markedly different.
5

Study of limiting factors and methods of optical phase conjugation by stimulated Brillouin scattering

Anikeev, Igorʹ Yu. January 2001 (has links) (PDF)
Includes bibliographical references (leaves 205-227) A study of phase conjugation by stimulated Brillouin scattering is presented with emphasis on the limiting factors, such as aperture and polarization losses, spatial coherence and saturation of the incident wave on the quality of phase conjugation, as well as the application of stimulated Brillouin scattering to loop phase-cojugated mirror and intracavity-SBS-cell-phase-conjugated oscillator.
6

Study of limiting factors and methods of optical phase conjugation by stimulated Brillouin scattering /

Anikeev, Igorʹ Yu. January 2001 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 2001. / Includes bibliographical references (leaves 205-227).
7

Novel phase conjugation techniques based on stimulated Brillouin scattering

Ridley, Kevin Dennis January 1993 (has links)
No description available.
8

Bioanalytical and photophysical applications of sensitive nonlinear wave-mixing spectroscopy based on laser-induced gratings /

Knittle, James Eugene. January 2004 (has links)
Thesis (Ph. D.)--University of California, San Diego, and San Diego State University, 2004. / Vita. Includes bibliographical references.
9

Phase conjugation characteristics of Gaussian beam /

Bor, Sheau-Shong January 1986 (has links)
No description available.
10

THE INTERFEROMETRIC MEASUREMENT OF PHASE MISMATCH IN POTENTIAL SECOND HARMONIC GENERATORS.

SINOFSKY, EDWARD LAWRENCE. January 1984 (has links)
This dissertation combines aspects of lasers, nonlinear optics and interferometry to measure the linear optical properties involved in phase matched second harmonic generation, (SHG). A new measuring technique has been developed to rapidly analyze the phase matching performance of potential SHGs. The data taken is in the form of interferograms produced by the self referencing nonlinear Fizeau interferometer (NLF), and correctly predicts when phase matched SHG will occur in the sample wedge. Data extracted from the interferograms produced by the NLF, allows us to predict both phase matching temperatures for noncritically phase matchable crystals and crystal orientation for angle tuned crystals. Phase matching measurements can be made for both Type I and Type II configurations. Phase mismatch measurements were made at the fundamental wavelength of 1.32 (mu)m, for: calcite, lithium niobate, and gadolinium molybdate (GMO). Similar measurements were made at 1.06 (mu)m. for calcite. Phase matched SHG was demonstrated in calcite, lithium niobate and KTP, while phase matching by temperature tuning is ruled out for GMO.

Page generated in 0.1171 seconds