
University of Rochester
1.
Tompkin, Wayne Robert (1961 - ).
Phase conjugation by four-wave mixing in dye-doped
glasses.
Degree: PhD, 2017, University of Rochester
URL: http://hdl.handle.net/1802/32192
We studied the phase and polarization properties of
phase conjugation by degenerate four-wave mixing (DFWM). Dye-doped
glasses were used as the nonlinear optical material in the
experimental studies. The nonlinear optical response of these
materials is due to saturable absorption. We have measured a
third-order nonlinear optical susceptibility as large as 1 esu and
a response time of approximately 0.1 sec for fluorescein-doped
boric-acid glass at room temperature. Furthermore, we have
demonstrated that the nonlinear optical response of this material
can be enhanced by up to an order of magnitude through cooling;
third-order susceptibilities as large as 10 esu have been measured
when the sample is cooled sufficiently. We have also shown that
lead-tin fluorophosphate glass doped with acridine yellow and
acridine orange has faster response times and much better
durability than fluorescein-doped boric-acid glass, but has
slightly smaller nonlinearities. We used fluorescein-doped
boric-acid glass as the nonlinear optical material in our
experimental study of the properties of phase-conjugate signals
generated through DFWM. </br>The saturation
properties of dye molecules that are rigidly held in a solid matrix
were exploited to achieve nearly perfect vector phase conjugation.
We have studied these properties theoretically and experimentally.
Further, we have demonstrated that DFWM can be successfully
employed to remove the deleterious effects of most wavefront and
polarization aberrations in double pass. However, the polarization
distortions due to Faraday rotation cannot be corrected using
optical phase conjugation. We have used a phase-conjugate
interferometer to demonstrate that a phase-conjugate mirror based
on DFWM determines the phase of the incident signal field with
respect to the phases of the pump fields. </br>We
have demonstrated a passive, one-way imaging system using four-wave
mixing that corrects distortions incurred by an optical wavefront
in passing through a thin phase aberrating medium. This method can
be applied to situations that require the original object and
corrected image be on opposite sides of the aberrator.
</br>We have also performed experimental studies of
a geometrical phase for optical systems containing a
phase-conjugate mirror. We find that phase conjugation corrects for
the geometrical phase of the system.
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APA (6th Edition):
Tompkin, W. R. (. -. ). (2017). Phase conjugation by four-wave mixing in dye-doped
glasses. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/32192
Chicago Manual of Style (16th Edition):
Tompkin, Wayne Robert (1961 - ). “Phase conjugation by four-wave mixing in dye-doped
glasses.” 2017. Doctoral Dissertation, University of Rochester. Accessed April 26, 2018.
http://hdl.handle.net/1802/32192.
MLA Handbook (7th Edition):
Tompkin, Wayne Robert (1961 - ). “Phase conjugation by four-wave mixing in dye-doped
glasses.” 2017. Web. 26 Apr 2018.
Vancouver:
Tompkin WR(-). Phase conjugation by four-wave mixing in dye-doped
glasses. [Internet] [Doctoral dissertation]. University of Rochester; 2017. [cited 2018 Apr 26].
Available from: http://hdl.handle.net/1802/32192.
Council of Science Editors:
Tompkin WR(-). Phase conjugation by four-wave mixing in dye-doped
glasses. [Doctoral Dissertation]. University of Rochester; 2017. Available from: http://hdl.handle.net/1802/32192