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The Physics Brown Bag seminars are an opportunity to discuss the latest research with fellow scientists and science-minded people. Also, there's pizza!

The next seminar takes place on Friday, June 13, at noon in the Nanotalo lobby.

Presenter: 

Prof. Elyahou Kapon
Institute of Physics
EPFL, Switzerland

Topic: 

Vertical Cavity Surface Emitting Lasers Made by Wafer Bonding

Vertical cavity surface emitting lasers (VCSELs) have already established themselves as the semiconductor lasers of choice in many applications, including high bit-rate optical communication, chemical and physical sensing, spectroscopy, LIDAR and integrated optoelectronics.  As further developments of this technology in terms of emission spectrum, low-cost manufacturing and integration are being pursued, more advances in this area are still expected.  After a brief general introduction, this talk will focus on VCSELs emitting in the 1-2 µm spectral range, fabricated by wafer bonding.  The great flexibility offered by this fabrication scheme makes possible the production of high performance emitters compatible with mass deployment in telecommunication and physical sensing platforms.  Application of this technology in high-power vertical external cavity lasers (VECSELs) will also be mentioned.

Bio:

Prof. Eli Kapon received his PhD in Physics from Tel Aviv University, Israel, in 1982. He then spent two years as a Chaim Weizman postdoctoral Fellow at Caltech, California, where he worked on semiconductor lasers and laser arrays.  From 1984 till 1993 he was with Bellcore, New Jersey, first as member of technical staff and later as District Manager, working on integrated optics and low-dimensional nanostructures, and managing the Quantum Structures and Integrated Optoelectronics Districts.  His work at Bellcore led to the first demonstration of quantum wire lasers. In 1993 he joined EPFL, Switzerland, as Professor of Physics. His Laboratory developed pyramidal quantum dots, their integration with photonic crystal systems, and wafer fused VCSELs. 

In 2001 he founded BeamExpress, a startup company dedicated to development and commercialization of wafer-fused VCSELs.  In 1999-2002 he founded the Tel Aviv University Center for Nanosciences and Naotechnologies and served as its first Director. 

Prof. Kapon is Fellow of the Optical Society of America, the American Physical Society and the IEEE. He is recipient of a Humboldt Research Award and the IEEE Photonics Society Distinguished Lecturer Award.

Before the seminar, pizza is served at approximately 11.45 am.

All and everyone are welcome to join us for pizza and science!