Latest News

May 19, 2015: Jen presents on the D-Lab's work at the IEEE SFBA Nanotechnology Council Symposium "The promise and progress of Nanophotonics"

May 11, 2015: Amr successfully defends his thesis: "Toward direct optical manipulation of nanoscale specimens with coaxial plasmonic tweezers"! Congratulations, soon-to-be Dr. Saleh! See his presentation here!

April 25, 2015: Jen gave an overview of the D-Lab's research at this year's Admit Expo for admitted freshman. Hopefully they will join the Farm this fall!

April 16, 2015: Hadiseh successfully defends her thesis: "Metafluids and Parity-Time symmetric metamaterials: New optical material phases and phenomena"! Congratulations, soon-to-be Dr. Alaeian!

April 7, 2015: The D-Lab was well-represented at MRS, with presentations from Hadiseh, Brian, Yang, Alice, Guru, Shign-Shing, Michael, Andrea, Tarun, Jen, and Ashwin! Congratulation to Hadiseh for receiving a Graduate Student Award and Shing-Shing for winning a best poster award!

April 1, 2015: Congratulations to Guru on his wedding!

March 16, 2015: Jon successfully defends his thesis, "Plasmon nanoparticles in the quantum size regime"! Congratulations, soon-to-be Dr. Scholl! See his presentation here!

March 17, 2015: Jen gave an invited seminar to the Berkeley Chemistry department. Thank you Paul and Naomi for the invitation and very fun day!

March 16, 2015: Ashwin successfully defends his thesis: "Controlling light at the nanoscale for broadband metamaterials, efficient solar cells and subwavelength 3D imaging"! Congratulations, soon-to-be Dr. Atre! See his presentation here!

March 12, 2015: Jen gave an invited seminar to the UO Physics department. Thank you Miriam and Shannon for hosting a fun visit!

March 2, 2015: Jen presented an invited seminar at the APS spring meeting in San Antonio, Texas. The talk was featured on Doug Natelson's blog

February 12, 2015: Jen is awarded a Sloan Foundation Fellowship!

January 26, 2015: Jen presented at the AP/MSE colloquium series at Caltech. Thank you, Julia for hosting my visit!

January 1, 2015: Jen is featured in a Nature New Year's article, "Hopes for the Year Ahead"! Read the article here.

November 30-December 5, 2014: Tarun, Amr, and Guru presented their work at Fall MRS in Boston.

November 12-14, 2014: Ashwin presented an invited talk on his nano-optical tomography work at the OSA incubator on the Fundamental limits of optical energy, in Washington, DC.

October 25, 2014: Jen taught a course on Nanophotonics at Classes Without Quizzes during Stanford's Reunion Homecoming.

September 23-24, 2014: The D-Lab's solar team attended the LMI-EFRC kick-off meeting at Caltech, where Ashwin presented an invited talk on his nano-optical tomography work.

September 14: The D-Lab hits the waters on a lake trip and welcomes its newest member, Marcus Minh Dionne Vu.

September 7: Andrea and Tarun's paper on PdH nanoparticle phase transitions is published in Nature Materials!
Stanford Press Release

September 2: Jon presented an invited talk at NFO, Salt Lake City, on quantum plasmonic metamaterials.

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Featured Research

I. Investigating single-particle intercalation-driven phase transitions:

Andrea, Tarun, and Ai Leen have revealed the thermodynamics of PdH phase transitions in single nanocrystals, using in-situ transmission electron microscopy and electron energy loss spectroscopy. Their results reveal that individual particles are characterized by sharp isotherms, and that surface energy effects dictate the loading pressure. Their results are published in the latest issue of Nature Materials, and could impact design of next-generation energy storage materials.

II. Parity-time-symmetric metamaterials:

Inspired by insights from quantum mechanics, Hadiseh Alaeian has designed a new "parity-time-symmetric" plasmonic metamaterial that exhibits highly unusual unidirectional refraction, reflection and transmission coefficients that are both simultaneously greater than unity, and photonic Bloch power oscillations. This new metamaterial could be used to design lossless "perfect lenses" for optical imaging well below the diffraction limit of light, and well as unidirectional invisibility cloaks and new non-reciprocal nanophotonic devices. Her results are published in two articles, now available in Physical Review.

III. A Metafluid exhibiting strong optical magnetism:

In a recent Nano Letters, Sassan Sheikholeslami, Hadiseh Alaeian, and Ai Leen Koh describe protein-directed synthesis of a metamaterial fluid. The fluid exhibits an emergent magnetic response at visible frequencies, despite being composed of entirely non-magnetic building blocks. Their metafluid could enable new liquid-based tunable refractive index media with positive, negative, and near-zero refractive indices.

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