Department of Applied Physics and Materials Science - Applied Physics

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Highlights

Michael Winterrose and Brent Fultz Use High-Pressure "Alchemy" to Create Nonexpanding Metals

07-01-09

Graduate student Michael Winterrose, and Brent Fultz, professor of materials science and applied physics, and colleagues, describe the exotic behavior of materials existing at high pressures in a paper in the June 12th issue of Physical Review Letters. By squeezing a typical metal alloy at pressures hundreds of thousands of times greater than normal atmospheric pressure, the material does not expand when heated, as does nearly every normal metal, and acts like a metal with an entirely different chemical composition. This insight into the behavior of materials existing at high pressures becomes doubly interesting when you consider that some 90 percent of the matter in our solar system exists at these high pressures. [Caltech Press Release]

Tags: APhMS research highlights Brent Fultz

DOE Names Harry Atwater as Director of EFRC Focusing on Light-Material Interactions

05-11-09

DOE Names Harry Atwater as Director of EFRC Focusing on Light-Material Interactions. The U.S. Department of Energy (DOE) Office of Science has announced that it will fund the creation of 46 Energy Frontier Research Centers (EFRCs) over the next five years, including one that will be housed at Caltech. That $15 million EFRC will be headed by Harry Atwater, the Howard Hughes Professor and professor of applied physics and materials science.

Tags: APhMS energy Harry Atwater

 
EAS Remembers Thomas McGill

02-27-09

Thomas McGill, professor of applied physics, emeritus, passed away on March 19. An expert in nanostructures, he discovered how to stack silicon layers on chips in a way that could lead to significant new advances in silicon-based electronics. [Caltech Press Release]

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Niles Pierce and Michael Elowitz on Nature List of Favourite Articles

12-22-08

The editors of Nature have published a list of 22 of their favourite articles from 2008 - including Programming biomolecular self-assembly pathways by Niles Pierce, Associate Professor of Applied and Computational Mathematics and Bioengineering, and colleagues, and Frequency-modulated nuclear localization bursts coordinate gene regulation by Michael Elowitz, Assistant Professor of Biology and Applied Physics and Bren Scholar, and colleagues. 

Tags: APhMS research highlights CMS Niles Pierce Michael Elowitz

Douglas Hofmann and Colleagues Create Titanium-Based Structural Metallic-Glass Composites

12-19-08

Visiting scientist Douglas Hofmann (MS '06) and and colleagues, including William Johnson, Ruben F. and Donna Mettler Professor of Engineering and Applied Science, have created structural metallic-glass composites, based in titanium, that are lighter and less expensive than any the group had previously created, while still maintaining their toughness and ductility--the ability to be deformed without breaking. They are among the toughest engineering materials that currently exist. [Caltech Press Release]

Tags: APhMS research highlights William Johnson Douglas Hofmann

Professor Michael Elowitz Receives PECASE

12-08-08

Michael Elowitz, Assistant Professor of Biology and Applied Physics and Bren Scholar, has received a Presidential Early Career Award for Scientists and Engineers (PECASE), the highest honor bestowed by the U.S. government on scientists and engineers beginning their independent careers. The PECASE awards recognize outstanding scientists and engineers who, early in their careers, show exceptional potential for leadership at the frontiers of knowledge.

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Michael Elowitz, Long Cai, and Chiraj Dalal Find Cells Coordinate Gene Activity with FM Bursts

10-17-08

How a cell achieves the coordinated control of a number of genes at the same time, a process that's necessary for it to regulate its own behavior and development, has long puzzled scientists. Michael Elowitz, assistant professor of biology and applied physics, along with postdoctoral research scholar Long Cai, and graduate student Chiraj Dalal, have discovered a surprising answer. Just as human engineers control devices ranging from dimmer switches to retrorockets using pulsed--or frequency modulated (FM)--signals, cells tune the expression of groups of genes using discrete bursts of activation. [Caltech Press Release]

Tags: APhMS research highlights health Michael Elowitz

Kerry Vahala Wins Alexander Von Humboldt Research Award

09-29-08

Kerry Vahala, Ted and Ginger Jenkins Professor of Information Science and Technology and Professor of Applied Physics, has won an Alexander Von Humboldt Research Award. The Humboldt award recognizes 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. Vahala has also been awarded and the IEEE David Sarnoff Award for exceptional contributions to electronics, and in particular, "for seminal contributions to improved dynamics of quantum well semiconductor lasers."

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Paul Bellan Gives Explanation for a Strange Property of Night-shining Clouds

09-29-08

An explanation for a strange property of night-shining clouds has been proposed by Paul Bellan, Professor of Applied Physics. Noctilucent clouds - thin, wispy electric blue clouds clouds hovering at 85 km altitude - are highly reflective to radar. Ice grains in noctilucent clouds are coated with a thin film of metal, made of sodium and iron. The metal film causes radar waves to reflect off ripples in the cloud in a manner analogous to how x-rays reflect from a crystal lattice. [Caltech Press Release]

Tags: APhMS research highlights Paul Bellan

NSF Awards Sossina Haile ACI Fellowship

09-23-08

The National Science Foundation (NSF) has awarded an American Competitiveness and Innovation (ACI) Fellowship to Sossina M. Haile, Professor of Materials Science and Chemical Engineering, "for her timely and transformative research in the energy field and her dedication to inclusive mentoring, education and outreach across many levels." This recognition program honors current NSF grantees who have demonstrated a combination of transformative research accomplishments and outstanding contributions toward education, mentoring, and broadening participation of women, underrepresented minorities, and people with disabilities.

Tags: APhMS honors energy research highlights Sossina Haile