Bending the Light with a Tiny Chip
Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering, and colleagues have developed a new light-bending silicon chip that acts as a lens-free projector--and could one day end up in your cell phone. They were able to bypass traditional optics by manipulating the coherence of light—a property that allows the researchers to "bend" the light waves on the surface of the chip without lenses or the use of any mechanical movement. [Caltech Release]
A New Laser for a Faster Internet
Amnon Yariv, Martin and Eileen Summerfield Professor of Applied Physics and Professor of Electrical Engineering, and his group have developed a new laser that has the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network—the backbone of the Internet. "What became the prime motivator for our project was that the present-day laser designs have an internal architecture which is unfavorable for high spectral-purity operation. This is because they allow a large and theoretically unavoidable optical noise to comingle with the coherent laser and thus degrade its spectral purity," Professor Yariv describes. [Caltech Release]
ENGenious Wins Silver!
The 2013 issue of ENGenious has won a silver award from the Council for Advancement and Support of Education (CASE) District VII in the Awards of Excellence category of Annual Magazines. The award is given by the CASE District VII Board of Directors and the Awards of Excellence Committee to "superior magazines published once a year." First published in 2001, ENGenious is a publication for alumni and friends of the Caltech Division of Engineering and Applied Science (EAS). The goal of the publication is to highlight the contributions of the EAS faculty, students, and alumni in research, education, and industry. [ENGenious]
Celebrating 50 Years of the Argon Ion Laser
William Bridges, Carl F Braun Professor of Engineering, Emeritus, discovered and patented the Argon ion laser on February 14, 1964, while at Hughes Research Laboratories. Today noble gas (argon, krypton, xenon) lasers are used in a variety of applications including DNA sequencers, cell sorters, eye surgery, and laser light shows. Professor Bridges' research work with lasers involved an airborne night reconnaissance system (AN/AVD-3), space communications systems, early high power laser weapons (the carbon dioxide gas dynamic laser), and hydrogen maser clocks for the global positioning system. He also holds the patent for the Ionized Noble Gas Laser. [Oral History of Prof. Bridges]