205:, but struggled to make a laser cavity with zinc oxide which is difficult to cleave or etch. Whilst measuring the fluorescence of polycrystalline zinc oxide films, Cao observed lasing; an unexpected result given the absence of any cavity. She later attributed this lasing to the random scattering of light from the zinc oxide grains. Cao switched her research focus to
42:
263:
input light. In 2013, Cao realised a high-resolution microspectrometer on a disordered photonic chip. She fabricated a random array of air holes in a silicon wafer. Multiple-scattering events within the random structure allows for tiny, high resolution spectrometers that can be used for a variety of applications.
236:
program and studied the structural color in nature. In conventional lasers, high spatial coherence can result in artefacts such as speckle noise, which can compromise full-field imaging. While having similar brightnesses to conventional lasers, random lasers can have low spatial coherence like light
266:
Alongside the novel photonic devices, Cao made use of non-conventional lasers for high power, stable lasing systems. In collaboration with Ortwin Hess at
Imperial College London and Qijie Wang at Nanyang Technological University, she utilized wave-chaotic cavities as well as disordered cavities to
241:
for biomedical applications. She designed a novel laser system that can switch between high and low spatial coherence, allowing for both speckle-free imaging (to monitor the structure of an object) and speckle-full imaging (to track the motion of an object). She applied such a laser to imaging the
262:
In 2012 Cao demonstrated that a multimode fiber can function as an ultra-high-resolution broadband spectrometer. The speckle pattern, generated by interference among the guided modes in a fiber, is unique for each wavelength and can be used as a fingerprint to identify the spectral content of the
258:
After moving to Yale, Cao started the biophotonics program and established collaborations with several biologists and material scientists. In collaboration with
Richard Prum and Eric Dufresne, she figured out how the vivid color of bird feather is produced by nanostructures instead of pigments.
209:β the lasers with feedback provided by multiple scattering events. Cao also employed the interference of multiply scattered light as a novel mechanism for three-dimensional optical confinement and fabricated microlasers with ZnO nanoparticles. Since 2008, Cao served as the
250:
on a new mathematical theory to model such laser systems. Cao and Stone were the first researchers to create an anti-laser; a device in which incoming beams of light interfere with one another and cancel the outgoing waves. Cao dubbed these devices
1485:
1510:
255:(CPAs), and proposed that they can be used as optical switches and radiology. She also showed that it is possible to control light transmission and absorption in opaque media by shaping the spatial wavefronts of laser beams.
270:
In 2018 Cao was named the Yale
University Beinecke Professor of Applied Physics, and in 2019 the John C. Malone Professor of Applied Physics and of Physics. She has been a member of the International Scientific Committee of
201:, she started to explore new research area and launched a collaboration with Robert P. H. Chang studying the optical properties of zinc oxide. At the time, people were interested in creating ultraviolet lasers out of
237:
emitting diodes (LEDs) and avoid speckle noise in full-field imaging and parallel projection. Random lasers are simple to fabricate, as they are made of disordered materials. Cao also developed the light sources for
267:
disrupt the formation of filaments. Filaments can lead to instabilities during laser operation, and Cao has shown that introducing wave chaos to a laser resonator can significantly improve the emission stability.
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245:
In addition, Cao studied other types of non-conventional lasers, including chaotic microcavity lasers, deterministic aperiodic lasers, photonic amorphous lasers, and topological defect lasers. She worked with
259:
Together with
Antonia Monterio, Cao studied the evolution of the structural color and how it is affected by the environment. She was able to control lasing in biomimetic structures with short-range order.
168:
as a graduate student in mechanical & aerospace engineering. She enjoyed the focus of the United States' training on independent, inquisitive thinking. After completing her master's degree, Cao joined
441:
Cao, H.; Zhao, Y. G.; Ong, H. C.; Ho, S. T.; Dai, J. Y.; Wu, J. Y.; Chang, R. P. H. (1998-12-21). "Ultraviolet lasing in resonators formed by scattering in semiconductor polycrystalline films".
156:, asked her what travels furthest and fastest. When she learned that the answer was light, she became fascinated by the discipline of optics. Cao earned her undergraduate degree in physics at
136:. Her research interests are mesoscopic physics, complex photonic materials and devices, with a focus on non-conventional lasers and their unique applications. She is an elected member of the
173:
as a PhD student in applied physics. At
Stanford she worked on semiconductor cavity quantum electrodynamics with Yamamoto Yoshihisa. Her doctoral research was published as a monograph by
1360:
404:
Cao, H.; Xu, J. Y.; Zhang, D. Z.; Chang, S.-H.; Ho, S. T.; Seelig, E. W.; Liu, X.; Chang, R. P. H. (2000-06-12). "Spatial
Confinement of Laser Light in Active Random Media".
338:
511:
344:
1530:
1525:
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213:
Division of Laser
Science Distinguished Traveling Lecturers. Her other area of interest is the coherent control of light transport in diffusive medium and
914:
232:, she applied her understanding of random lasing systems to the design of novel illumination sources for speckle-free imaging. At Yale, Cao started the
1505:
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132:(ζΉθ) is a Chinese-American physicist who is the professor of applied physics, a professor of physics and a professor of electrical engineering at
571:
356:
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1215:
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Cao, H.; Zhao, Y. G.; Ho, S. T.; Seelig, E. W.; Wang, Q. H.; Chang, R. P. H. (1999-03-15). "Random Laser Action in
Semiconductor Powder".
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1026:
Materials, Dr Sang Soon Oh SΓͺr Cymru Rising Star Fellow
Advanced; Matter, Devices-SΓͺr Cymru Research Group Condensed; Group, Photonics.
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1410:"2017 AAAS Fellows Recognized for Advancing Science | American Association for the Advancement of Science"
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as a professor of applied physics and a professor of physics. In collaboration with
Michael A. Choma at
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since 2017, and a member of the advisory board of the Max Planck Institute for the Science of Light.
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Cao became interested in physics as a young child, when her father, a professor of physics at
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537:"FIP Seminar Series β Dr. Hui Cao, Stanford University | Fitzpatrick Institute for Photonics"
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1192:"NSF Award Search: Award#0093949 β CAREER: Microscopic Study of Photon Localization"
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heartbeat of a living tadpole, which is an animal model of human heart disease.
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566:. Springer Tracts in Modern Physics. Berlin Heidelberg: Springer-Verlag.
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Princeton University School of Engineering and Applied Science alumni
725:
462:
284:
1999 David and Lucille Packard Fellowship for Science and Engineering
96:
193:
from Stanford University in 1997, Cao joined the physics faculty at
121:
1511:
Fellows of the American Association for the Advancement of Science
915:"Researchers Use Scattering in Disordered Spectrometer-on-a-Chip"
1385:"Three Yale faculty named fellows of largest scientific society"
1361:"The Willis E. Lamb Award for Laser Science and Quantum Optics"
588:"US5877509 Quantum well exciton-polariton light emitting diode"
364:
2022 Rolf Landauer Medal, the International ETOPIM Association
1521:
Members of the United States National Academy of Sciences
1093:"Hui Cao named the Beinecke Professor of Applied Physics"
1118:"Two faculty members named as John C. Malone Professors"
177:. She and co-workers proposed a novel exciton-polariton
860:"New shapes of laser beam 'sneak' through opaque media"
612:"Complex Lasers β Department of Electrical Engineering"
940:"The cure for chaotic lasers? More chaos, of course"
361:
2021 IEEE Photonics Society (IPS) Aron Kressel Award
315:
2007 Elected Fellow of the American Physical Society
339:
American Association for the Advancement of Science
117:
95:
81:
56:
48:
32:
1073:The cure for chaotic lasers? More chaos, of course
808:"Yale Scientist Recognized for Research on Optics"
1028:"Physicists fight laser chaos with quantum chaos"
763:Cao, Hui (2003-07-01). "Lasing in random media".
345:Institute of Electrical and Electronics Engineers
8:
563:Semiconductor Cavity Quantum Electrodynamics
103:Semiconductor Cavity Quantum Electrodynamics
1216:"2006 Maria Goeppert Mayer Award Recipient"
835:"Scientists build world's first anti-laser"
560:Yamamoto, Y.; Tassone, F.; Cao, H. (2000).
334:2015 Willis E. Lamb Award for Laser Science
164:for her graduate studies, where she joined
1143:"ESPCI International Scientific Committee"
40:
29:
1328:
1313:"2014 Microscopy Today Innovation Awards"
660:"Hui Cao | Department of Applied Physics"
142:the American Academy of Arts and Sciences
295:National Science Foundation CAREER Award
484:
303:Friedrich Wilhelm Bessel Research Award
1531:21st-century American women scientists
1526:Chinese emigrants to the United States
1053:
1043:
965:"Fighting chaos with chaos in lasers"
908:
906:
904:
829:
827:
685:"A History of the Laser: 1960 β 2019"
357:American Academy of Arts and Sciences
324:2013 John Simon Guggenheim Fellowship
197:. Whilst she was still interested in
7:
1556:American scientists of Asian descent
506:
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160:in Beijing, China. She moved to the
636:"Distinguished Traveling Lecturers"
25:
301:Alexander von Humboldt Foundation
217:, with potential applications in
1506:21st-century American physicists
122:https://www.eng.yale.edu/caolab/
1496:Northwestern University faculty
138:US National Academy of Sciences
1436:. National Academy of Sciences
683:Hogan, Melinda Rose and Hank.
320:The Optical Society of America
1:
884:"New laser is from the birds"
806:Gupta, Abhinav (2010-09-01).
221:and deep tissue imaging.
1167:"Alfred P. Sloan Foundation"
351:National Academy of Sciences
239:optical coherence tomography
1516:Fellows of Optica (society)
1292:Optical Society of American
938:Shelton, Jim (2018-08-16).
913:Coffey, Valerie C. (2013).
858:Shelton, Jim (2019-03-04).
710:"The smallest random laser"
426:10.1103/PhysRevLett.84.5584
397:10.1103/PhysRevLett.82.2278
343:2019 Elected Fellow of the
1572:
1491:Stanford University alumni
777:10.1088/0959-7174/13/3/201
708:Wiersma, Diederik (2000).
311:Maria Goeppert-Mayer Award
253:coherent perfect absorbers
27:Chinese American physicist
1541:American women physicists
1330:10.1017/S1551929514000893
308:American Physical Society
289:Sloan Research Fellowship
211:American Physical Society
113:
74:
39:
1551:American women academics
1481:Peking University alumni
963:Yang, Lan (2018-09-21).
812:Yale Scientific Magazine
148:Early life and education
1501:Yale University faculty
1311:Lyman, Charles (2014).
989:10.1126/science.aau6628
664:appliedphysics.yale.edu
516:www.laserfocusworld.com
443:Applied Physics Letters
406:Physical Review Letters
377:Physical Review Letters
337:2017 Elected Fellow of
318:2007 Elected Fellow of
199:quantum electrodynamics
195:Northwestern University
90:Northwestern University
1536:Sloan Research Fellows
765:Waves in Random Media
1240:"APS Fellow Archive"
592:patentscope.wipo.int
541:fitzpatrick.duke.edu
355:2021 Elected to the
349:2021 Elected to the
189:After receiving her
179:light-emitting diode
166:Princeton University
65:Princeton University
1434:"2021 NAS Election"
981:2018Sci...361.1201Y
455:1998ApPhL..73.3656C
418:2000PhRvL..84.5584C
389:1999PhRvL..82.2278C
369:Select publications
230:Yale medical school
224:In 2008 Cao joined
185:Research and career
175:Springer Publishing
171:Stanford University
69:Stanford University
1288:"2007 OSA Fellows"
1056:has generic name (
1032:Cardiff University
1365:www.lambaward.org
1171:www.chronicle.com
720:(6792): 133β135.
689:www.photonics.com
573:978-3-540-67520-4
449:(25): 3656β3658.
412:(24): 5584β5587.
383:(11): 2278β2281.
279:Awards and honors
158:Peking University
154:Peking University
127:
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76:Scientific career
61:Peking University
16:(Redirected from
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329:Microscopy Today
248:A. Douglas Stone
215:multimode fibers
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1458:. Retrieved
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1414:www.aaas.org
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1391:. 2017-11-20
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