C
Charles Greenlee
Researcher at University of Arizona
Publications - 17
Citations - 508
Charles Greenlee is an academic researcher from University of Arizona. The author has contributed to research in topics: Ultrasonic sensor & Interferometry. The author has an hindex of 8, co-authored 17 publications receiving 491 citations. Previous affiliations of Charles Greenlee include Leonardo.
Papers
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Journal ArticleDOI
Hybrid polymer/sol–gel waveguide modulators with exceptionally large electro–optic coefficients
Yasufumi Enami,Christopher T. DeRose,D. Mathine,C. Loychik,Charles Greenlee,Robert A. Norwood,Tae-Dong Kim,Jingdong Luo,Yanqing Tian,Alex K.-Y. Jen,Nasser Peyghambarian +10 more
TL;DR: In this paper, a doped, crosslinked organic EO polymer was incorporated into hybrid polymer/sol-gel waveguide modulator devices with exceptional performance, achieving in-device EO coefficients that are five to six times larger than those of the benchmark inorganic material.
Patent
Ultrasonic/photoacoustic imaging devices and methods
Russell S. Witte,Leonardo Gabriel Montilla,Ragnar Olafsson,Charles M. Ingram,Zhaohui Wang,Robert A. Norwood,Charles Greenlee +6 more
TL;DR: In this paper, a light-beam source, an acoustic-wave source, optical element, and an acoustic detector are described for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample.
Journal ArticleDOI
Mach–Zehnder interferometry method for decoupling electro-optic and piezoelectric effects in poled polymer films
Charles Greenlee,Anael Guilmo,Ayodeji Opadeyi,Roland Himmelhuber,Robert A. Norwood,Mahmoud Fallahi,Jingdong Luo,Su Huang,Xing Hua Zhou,Alex K.-Y. Jen,Nasser Peyghambarian +10 more
TL;DR: In this article, a Mach-Zehnder interferometer is used to decouple the electro-optic and piezoelectric tensor effects occurring in a poled polymer film.
Journal ArticleDOI
Hybrid sol-gel electro-optic polymer modulators: beating the drive voltage/loss tradeoff
Robert A. Norwood,Christopher T. DeRose,Yasufumi Enami,Haiyong Gan,Charles Greenlee,Roland Himmelhuber,O. Kropachev,C. Loychik,D. Mathine,Y. Merzylak,Mahmoud Fallahi,Nasser Peyghambarian +11 more
TL;DR: In this paper, the authors developed a solution to the voltage/insertion loss tradeoff in EO polymer modulators by adopting a hybrid geometry that provides for low optical coupling loss, electro-optic polymer limited propagation loss, highly efficient poling, and low cost fabrication.
Journal ArticleDOI
Electro-optic polymer spatial light modulator based on a Fabry–Perot interferometer configuration
Charles Greenlee,Jingdong Luo,Kevin D. Leedy,B. Bayraktaroglu,Robert A. Norwood,Mahmoud Fallahi,Alex K.-Y. Jen,N. Peyghambarian +7 more
TL;DR: A spatial light modulator based on a Fabry-Perot interferometer configuration has been fabricated and tested and measurement results demonstrate the modulation of multiple pixels operating simultaneously at frequencies ranging from 300 kHz to 800 kHz which is significantly faster than SLMs based on liquid crystal and digital micromirror device technology.