Department of Applied Physics and Materials Science - Materials Science

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Highlights

Chiara Daraio Named One of Popular Science's Brilliant 10

10-14-10

Chiara Daraio, Assistant Professor of Aeronautics and Applied Physics, has been named one of Popular Science's Brilliant 10. The article states that Professor Daraio is "brilliant because: she manipulates simple laws of physics to make cancer-destroying 'sound bullets'." [Learn More on page 80-01]

Tags: APhMS honors research highlights Chiara Daraio GALCIT

2010 Breakthrough Award by Popular Mechanics

10-04-10

Harry A. Atwater, Jr., Howard Hughes Professor and Professor of Applied Physics and Materials Science, along with colleagues Nate Lewis, George L. Argyros Professor and Professor of Chemistry, and Dr. Michael Kelzenberg are recipients of a 2010 Breakthrough Award by Popular Mechanics for their work on flexible solar cells. [Popular Mechanics Article]

Tags: APhMS honors energy research highlights Popular Mechanics Harry Atwater Nate Lewis Michael Kelzenberg

Novel Negative-Index Metamaterial that Responds to Visible Light

04-23-10

Stanley Burgos, researcher at the Light-Material Interactions in Energy Conversion Energy Frontier Research Center, Harry A. Atwater, Jr., Howard Hughes Professor and Professor of Applied Physics and Materials Science, and colleagues have engineered a novel negative-index metamaterial that responds to visible light. This material bends light in the "wrong" direction from what normally would be expected, irrespective of the angle of the approaching light. [Caltech Press Release]

Tags: APhMS energy research highlights Harry Atwater Stanley Burgos

Caltech Researchers Create "Sound Bullets"

04-22-10

Alessandro Spadoni, Postdoctoral Scholar, and Chiara Daraio, Assistant Professor of Aeronautics and Applied Physics, have built a nonlinear acoustic lens that produces highly focused, high-amplitude acoustic signals dubbed "sound bullets." The combination of the acoustic lens and sound bullets have "the potential to revolutionize applications from medical imaging and therapy to the nondestructive evaluation of materials and engineering systems," says Professor Daraio. [Caltech Press Release]

Tags: APhMS research highlights Chiara Daraio GALCIT health Alessandro Spadoni

Nanoscale Structures with Superior Mechanical Properties

02-09-10

Julia Greer, Assistant Professor of Materials Science and Mechanical Engineering, and Dongchan Jang, Postdoctoral Scholar, have developed a way to make some notoriously brittle materials ductile—yet stronger than ever—simply by reducing their size. Professor Greer describes, "We are entering a new era in materials science, where structural materials can be created not only by utilizing monolith structures, like ceramics and metals, but also by introducing 'architectural' features into them." [Caltech Press Release]

Tags: APhMS research highlights MCE Julia Greer Dongchan Jang

Oskar Painter and Colleagues Propose Quantum Entanglement for Motion of Microscopic Objects

12-21-09

Oskar Painter, Associate Professor of Applied Physics, along with colleagues Darrick Change, Postdoctoral Scholar at Institute for Quantum Information, and H. Jeff Kimble, William L. Valentine Professor and Professor of Physics have proposed a new paradigm that should allow scientists to observe quantum behavior in small mechanical systems. Their idea offers a new means of studying the nature of quantum superposition and entanglement in progressively larger and more complex systems. [Caltech Press Release]

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Harry Atwater and Nathan Lewis Lead New Solar-research Collaboration

11-12-09

Harry A. Atwater, Jr., Howard Hughes Professor and Professor of Applied Physics and Materials Science, and Nathan S. Lewis, George L. Argyros Professor and Professor of Chemistry, are leading a new solar-research collaboration between Caltech and Dow Chemical Company aimed at developing the use of semiconductor materials that are less expensive and more abundant than those used in many of today's solar cells. In addition, they announced the creation of the Dow Chemical Company Graduate Fellowship in Chemical Sciences and Engineering. [Caltech Press Release]

Tags: APhMS energy research highlights Harry Atwater

DNA Origami Nanoscale Breadboards for Carbon Nanotube Circuits

11-10-09

Hareem T. Maune, a graduate student studying carbon nanotube physics, and Si-ping Han, a graduate student investigating the interactions between carbon nanotubes and DNA have developed DNA origami nanoscale breadboards for carbon nanotube circuits. "This collaborative research project is evidence of how we at Caltech select the top students in science and engineering and place them in an environment where their creativity and imagination can thrive," says Ares Rosakis, chair of the Division of Engineering and Applied Science at Caltech and Theodore von Kármán Professor of Aeronautics and Professor of Mechanical Engineering. The work of these students was supervised by: Erik Winfree, Associate Professor of Computer Science, Computation and Neural Systems, and Bioengineering; William A. Goddard III, Charles and Mary Ferkel Professor of Chemistry, Materials Science, and Applied Physics; Paul W.K. Rothemund, Senior Research Associate, and Marc Bockrath, Associate Professor of Physics at University of California Riverside. [Caltech Press Release]

Tags: APhMS research highlights CMS Erik Winfree William Goddard Paul Rothemund Si-ping Han

Oskar Painter and Kerry Vahala Trap Light and Sound Vibrations Together in Nanocrystal

10-26-09

Oskar Painter, Associate Professor of Applied Physics, and Kerry J. Vahala Ted and Ginger Jenkins Professor of Information Science and Technology and Professor of Applied Physics; Director, The Lee Center for Advanced Networking have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the same tiny space. "This novel approach... exemplifies the forward-thinking work being done by the Engineering and Applied Science division," says Ares Rosakis, Chair and Theodore von Kármán Professor of Aeronautics and Mechanical Engineering at Caltech. [Caltech Press Release]

Tags: APhMS research highlights CMS Oskar Painter Kerry Vahala

Sandra Troian and Mathias Dietzel Solve Decade-Long Mystery of Nanopillar Formations

10-23-09

Sandra Troian, Professor of Applied Physics, Aeronautics, and Mechanical Engineering, and Dr. Mathias Dietzel have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless patterns. "This is an example of how basic understanding of the principles of physics and mechanics can lead to unexpected discoveries which may have far-reaching, practical implications," said Ares Rosakis, Division Chair and Theodore von Kármán Professor of Aeronautics and Mechanical Engineering at Caltech. "This is the real strength of the EAS division." [Caltech Press Release] [video] [Download real player]

Tags: APhMS research highlights GALCIT MCE Sandra Troian