NEWS
>> Capasso group's latest research, in collaboration with researchers from Prof. Martina Hentschel's group (Germany), Prof. Jan Wiersig's group (Germany), and Hamamatsu Photonics (Japan), on deformed microcavity lasers has been featured on the cover of the June 22 issue of Applied Physics Letters. The fabricated Limacon-shaped microcavity lasers have demonstrated directional emission while having high-Q factor whispering
gallery-like modes in the cavity. Unversal far-field behavior was also observed for this type of resonator. Please read the
full article in the publications page.
>> Capasso group's research on plasmonics is featured as the
cover story in the May 2009 issue of Optics and Photonics News.
>> Capasso group in collaboration with resear- chers from Hamamatsu Photonics has demonst- rated, for the first time, lasers in which the direction of oscillation of the emitted radiation, known as polarization, can be designed and controlled at will. See the article in the publication page and the
press release.
>> Researchers in the Capasso Group for the first time were able to measure a repulsive Casimir-Lifshitz interaction. Casimir force is known to be the attractive force between two closely spaced metal plates due to quantum fluctuations. Lifshitz Theory predicts however that it's possible to generate a repulsive force between two surfaces by carefully choosing the material properties. Until now, there wasn't any report of the experimental verification of a repulsive casimir force. Please read the full article in the
publications page. See the highlight in Nature vol. 457, 156-157. See also the
story in Physics Today , February 2009, pp. 19-22
.
>> Capasso group has demonstrated complete control of semiconductor laser collimation using a two-dimensional plasmonic structure defined on the laser facet. The laser beam divergence angle perpen- dicular and parallel to the laser waveguide layers has been reduced by more than one order of magnitude from tens of degrees down to just a few degrees. The devices preserve good room temperature performance with output power comparable to that of the original unpatterned lasers. Please read the full article in the
publications page. See also the highlight in Science vol. 322, pp. 1304, 2008.
>> Applied scientists at Harvard University in collaboration with resear- chers from Hamamatsu Photonics in Hamamatsu, Japan, have demonstrated, for the first time, highly directional semiconductor lasers using plasmonics. The innovation opens the door to a wide range of applications in photonics and communi- cations. The work will be featured on the cover of the September issue of Nature Photonics. Please read the full article in the
publications page. You can also see the
press release and the related press coverage in
Technology Review and
New Scientist.
>> The Capasso group's latest research on nanowire lasers has been featured on the cover of the August 4 issue of Applied Physics Letters. Please read the full article in the
publications page. You can also see the story in the October issue of
Laser Focus World.
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