- Our research on using optomechanical forces inside lasing VCSEL cavities to produce a self-wavelength-swept source, published recently in Scientific Reports, has been mentioned in articles by UC Berkeley News and Wired.
- The group's research on flexible, color-changing metastructures (artificial chameleon skin) was featured in a beautiful video by KQED's Deep Look.
- News of the group's research into flexible photonic metastructures for tunable color, also known as artificial chameleon skin, has reached an audience of over 80 million, according to estimates by the Optical Society of America. This research has been covered by numerous media outlets, including Nature Nanotechnology, Newsweek, Discovery, Nature Photonics News, Gizmodo, and Digital Journal. The original article can be found in the open-access journal Optica.
April 30, 2015
- Prof. Chang-Hasnain received a UNESCO Medal "For the Development of Nanoscience and Nanotechnologies" during a ceremony at UNESCO Headquarters in Paris, France. Congratulations!
April 10, 2015
- The group's research into flexible, color-changing high-contrast gratings (HCGs), recently published in the journal Optica, has been written up in a news article on the Science magazine blog.
March 12, 2015
- Professor Chang-Hasnain is being highlighted in the next issue of Berkeley Engineer! Check out the preview here.
October 20, 2014
- Professor Tetsuya Mizumoto, Vice President for Education of Tokyo Institute of Technology, visited our lab and received a tour of the Marvell Nanofabrication Laboratory from James Ferrara.
October 17, 2014
- UC Berkeley and Tsinghua University launch research and graduate education partnership, Prof. Chang-Hasnain to be faculty lead for the new institute! Read about it here.
September 9, 2014
- Graduate student Linda Kun Li has won the prestigous Lam Research Graduate Fellowship!
July 24, 2014
- The group's research on nanolasers on silicon is the subject of an article at LiveScience.com
July 12, 2014
- Connie Chang-Hasnain has been selected to receive the 2014 Quantum Device Award at the International Symposium on Compound Semiconductors. This award honors pioneering contributions to the field of compound semiconductor devices and quantum nanostructure devices that have made a major impact in the past two decades. New device concepts and structures, device physics and modeling as well as device realization and characterization are covered by the Award. Prof. Chang-Hasnain is recognized "for seminal contributions to vertical cavity surface-emitting laser (VCSEL) arrays and tunable VCSELs."
- Thai Tran won the Ross N. Tucker Memorial Award from the Department of Electrical Enginering and Computer Sciences.
May 2, 2014
- Fanglu Lu won the 2013 Chinese Government Award for Outstanding Self-financed Students Abroad. Prof. Chang-Hasnain gave a speech as the awardee's advisor in the award ceremony at San Francisco Chinese Consulate.
April 22, 2014
- High Contrast Grating Solver Package Released:The first public version of the Chang-Hasnain group's grating simulation package has been released on March 28, 2014. This powerful and user-friendly package can outperform RCWA for optical grating simulations.
- The paper titled "GaAs
nanoneedles grown on sapphire"
is featured on the cover of March 21 2011 issue of Applied Physics Letters.
Linus C. Chuang, Michael Moewe, Kar Wei Ng, Thai-Truong D. Tran,
Shanna Crankshaw, Roger Chen, Wai Son Ko, and Connie Chang-Hasnain,
"GaAs nanoneedles grown on sapphire", Appl. Phys. Lett. 98,
March 21, 2011
- Prof. Chang-Hasnain was presented
with the IEEE
David Sarnoff Award at the 2011 OFC/NFOEC for her pioneering
work on VCSELs.
Optical Fiber Communication Conference and
Exposition, Los Angeles, March 8, 2011
- The paper titled "Nanolasers
grown on silicon"
is featured on the cover of March 2011 issue of Nature
Roger Chen, Thai-Trung D. Tran, Kar Wei
Wai Son Ko, Linus C. Chuang, Forrest G. Sedgwick and Connie
Chang-Hasnain, "Nanolasers grown on silicon", Nature Photonics
5, 170-175 (2011)
February 26, 2011
- The Wall
Street Journal reports on the discovery of
nanolasers grown on silicon in an article titled "Berkeley Researchers
Hope to Light Way with Tiny Laser".
February 9, 2011
Berkeley News Center press release on "Engineers
grow nanolasers on silicon, pave way for on-chip photonics".
Chang-Hasnain has won the IEEE
David Sarnoff Award 2011 "for pioneering
contributions to vertical
cavity surface emitting laser (VCSEL) arrays and tunable VCSELs." This
award requires a singular outstanding achievement, originality, and
recent impact (within five years).
- Roger Chen won Best Student Award
at 2010 IEEE
Photonics Society Annual Meeting, Denvor, CO.
Chen, Thai-Truong D. Tran, Kar Wei Ng, Wai Son Ko, Linus C. Chuang,
Forrest G. Sedgwick and Connie Chang-Hasnain, "All-Semiconductor
Nanolasers on Silicon", Annual Meeting of IEEE Photonics Society,
Denver CO, Nov. 8-11, 2010
- Roger Chen won ISCS Student
International Symposium on Compound Semiconductors (ISCS ’10), Kagawa,
Chen, Linus C. Chuang, Forrest G. Sedgwick, Wai Son Ko, Kar Wei Ng,
Thai-Truong D. Tran, Connie Chang-Hasnain, "Monolithic Integration of
InGaAs/GaAs Nanopillar LEDs on a Silicon Substrate", 2010 International
Symposium on Compound Semiconductors (ISCS ’10), Kagawa, Japan, May 31
– June 4, 2010.
- Prof. Connie Chang-Hasnain has
awarded the Humboldt
Research Award from the Alexander von Humboldt Foundation.
The award is granted in recognition of a
achievements to date to academics whose fundamental discoveries, new
theories, or insights have had a significant impact on their own
discipline and who are expected to continue producing cutting-edge
achievements in future.
October 13, 2009
- Prof. Connie
Chang-Hasnain has been awarded a 2009 Guggenheim
Guggenheim Fellows are appointed on the basis
stellar achievement and exceptional promise for continued
accomplishment in their field and were chosen from a group of almost
April 7, 2009
- Prof. Connie Chang-Hasnain
has been selected as one of the new National
Security Science and Engineering Fellows.
Names Two Additional National Security Science And Engineering Fellows
Names Inaugural Class of National Security Science and Engineering
This is a very prestigious
recognition, honoring 8 distinguished scientists and engineers in its
inaugural round. Selected from over 350 applicants from all fields of
sciences and engineering, the eight researchers from the first NSSEFF
competition "are expected to make considerable discoveries in the core
science and engineering disciplines underpinning the technology of
"Every NSSEFF award--up to $3 million in total
direct research support for
up to five years--provides DoD with top-tier researchers from U.S.
universities, each conducting long-term, unclassified, basic research
challenging technical problems of strategic national security
said William Rees, Jr., deputy under secretary of defense for
and basic sciences. "It also affords significant opportunities for
to contribute to research programs within the DoD laboratories."
November 07, 2008
- Xiaoxue Zhao wins the 2007-08
Leon Chua Award.
The Leon Chua award is presented to a graduate student or undergraduate
student or recent alumnus for outstanding research in the area of
science. The award was made possible by a donation from a former
student of Professor Chua, Professor S.M. Kang, when he was Head of the
Department of Electrical and Computer Engineering at the University of
Urbana-Champaign. In January 2001, Dr. Kang was named Dean of the Jack
Baskin School of Engineering at the University of California at Santa
Since March 2007, Prof. Kang is the Chancellor of the University of
Please attend the Department's Student Awards Ceremony at 3:00 p.m. on
Friday, May 9th in the Hewlett-Packard Auditorium, room 306 Soda Hall,
Wendy will receive recognition for the award. A reception will follow
the Wozniak Lounge, room 430-438 Soda Hall.
- M.C.Y. Huang Huang & Ye
Mervin Zhou won the 65th Annual Device
Research Conference, 2007
One Best Student Paper Awards is selected at each DRC. Papers that are
based on the independent research of the graduate student who is
presenting the work are eligible for the Best Student Paper Award. The
award is made based on the quality of the written abstract and the oral
or poster presentation.
The awardee will be presented with a certificate and monetary award
the 66th Annual Device Research Conference, June 23-25, 2008.
- Xiaoxue Zhao
received B.U. Chen Memorial Scholarship given by the
Photonic Society of Chinese Americans, 2008.
- Ye Zhou and M.C.Y. Huang won the
Best Student Paper, Optical Society of America Frontiers in Optics
Ye Zhou, M.C.Y. Huang and C.J. Chang-Hasnain, "Very Large Fabrication
Tolerance of VCSELs Using High-Contrast Subwavelength Grating,"
Frontiers in Optics Conference, San Jose, CA, 17-20 September 2007.
- Bala Pesala, Best Paper of
Topical Meeting, OSA, 2007.
Bala Pesala, Forrest G. Sedgwick, Alexander V. Uskov, Connie
Tony H. Lin, "THz Tunable Slow Light and Fast Light of Ultrashort
Semiconductor Optical Amplifiers", OSA Topical Meeting on Slow and Fast
light, Salt Lake City, Utah, 8-11 July 2007.