Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for id:"handle:1802/32181". One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


University of Rochester

1. Bieber, Amy Erica (1966 - ). Coupling and switching in optically resonant periodic electrode structures.

Degree: PhD, 2017, University of Rochester

This thesis describes coupling and switching of optical radiation using metal-semiconductor-metal (MSM) structures, specifically in a metal-on-silicon waveguide configuration. The structures which are the subject of this research have the special advantage of being VLSI-compatible; this is very important for the ultimate acceptance of any integrated optoelectronics technology by the mainstream semiconductor community. To date, research efforts in VLSI electronics, MSM detectors, metal devices, and optical switching have existed as separate entities with decidedly different goals. This work attempts to unite these specialties; an interdigitated array of metal fingers on a silicon waveguide allows for 1) fabrication processes which are well-understood and compatible with current or next-generation semiconductor manufacturing standards, 2) electrical bias capability which can potentially provide modulation, tuning, and enhanced speed, and 3) potentially efficient waveguide coupling which takes advantage of TM coupling. The latter two items are made possible by the use of metallic gratings, which sets this work apart from previous optical switching results. This MSM structure represents an important step in uniting four vital technologies which, taken together, can lead to switching performance and operational flexibility which could substantially advance the capabilities of current optoelectronic devices. </br>Three different designs were successfully used to examine modulation and optical switching based upon nonlinear interactions in the silicon waveguide. First a traditional Bragg reflector design with input and output couplers on either side was used to observe switching of nanosecond-regime Nd:YAG pulses. This structure was thermally tuned to obtain a variety of switching dynamics. Next a phase-shift was incorporated into the Bragg reflector, and again thermally-tunable switching dynamics were observed, but with the added advantage of a reduction in the energy requirements for optical switching. Finally, the roles of the coupler and Bragg reflector were combined in a normal-incidence structure which exhibited nonlinear reflectivity modulation. This has not only been the first experimental demonstration of optical switching in a metal-semiconductor waveguide structure, but, to our knowledge, one of the first such demonstrations using a nonlinear phaseshifted or normal incidence grating of any kind.

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Bieber, A. E. (. -. ). (2017). Coupling and switching in optically resonant periodic electrode structures. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/32181

Chicago Manual of Style (16th Edition):

Bieber, Amy Erica (1966 - ). “Coupling and switching in optically resonant periodic electrode structures.” 2017. Doctoral Dissertation, University of Rochester. Accessed August 19, 2017. http://hdl.handle.net/1802/32181.

MLA Handbook (7th Edition):

Bieber, Amy Erica (1966 - ). “Coupling and switching in optically resonant periodic electrode structures.” 2017. Web. 19 Aug 2017.

Vancouver:

Bieber AE(-). Coupling and switching in optically resonant periodic electrode structures. [Internet] [Doctoral dissertation]. University of Rochester; 2017. [cited 2017 Aug 19]. Available from: http://hdl.handle.net/1802/32181.

Council of Science Editors:

Bieber AE(-). Coupling and switching in optically resonant periodic electrode structures. [Doctoral Dissertation]. University of Rochester; 2017. Available from: http://hdl.handle.net/1802/32181

.