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Moriah Bischann Wins SURF Speaking Competition

02-04-16

Material science undergraduate student Moriah Bischann, mentored by aerospace postdoctoral scholar, Dr. Owen Kingstedt, is the winner of the Doris S. Perpall Summer Undergraduate Research Fellowships (SURF) Speaking Competition. She was recognized as the best speakers-out of the 200 students who presented their SURF research. Her summer research focused on exploring the next generation of structural materials. During her ten week SURF project she studied the effects of alloying and processing on the dynamic behavior of magnesium (Mg). This work was done to address the larger question of whether Mg is a useful material for the automotive, aerospace, energy, and defense industries where a material is needed that has low density, but also the strength to withstand high impact forces.

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Tags: APhMS honors GALCIT research highlight Moriah Bischann Owen Kingstedt

Novel Calibration Tool Will Help Astronomers

01-27-16

Kerry Vahala, Ted and Ginger Jenkins Professor of Information Science and Technology and Applied Physics; Executive Officer for Applied Physics and Materials Science, and colleagues have developed a novel calibration tool, called a laser frequency comb, which could allow astronomers to take a major step in discovering and characterizing earthlike planets around other stars. The comb produces easily resolvable lines, without any need for filtering and is built from off-the-shelf components developed by the telecommunications industry. "We have demonstrated an alternative approach that is simple, reliable, and relatively inexpensive," says Professor Vahala. [Caltech story]

Tags: APhMS research highlights Kerry Vahala

Microscopic Materials

01-14-16

Marco Bernardi, Assistant Professor of Applied Physics and Materials Science, is fascinated by the interactions of quasiparticles and how they give rise to the world around us. He explains, “I'm most excited about the emphasis on fundamental science here. People can be really tempted by "flashy" science or experiments on hot topics. But to compute what I'm trying to look at, we have to first build our understanding on simple experiments and materials—boring things—before we are able to tackle materials at the frontier of condensed matter research.” [Interview with Prof. Bernardi]

Tags: APhMS research highlight Marco Bernardi

Solar Powered, Electrochemical, Wastewater Treatment System

12-18-15

Cody Finke, Environmental Science and Engineering graduate student, and Justin Jasper, Resnick Sustainability Institute Prize Postdoctoral Scholar, are the runner ups for the Dow Resnick Sustainability Innovation Student Challenge Award (SISCA) at Caltech. They have been working Professor Michael Hoffmann to enhance a modular, solar powered, electrochemical, on-site wastewater treatment system created by their group for toilets in the developing and developed world. With an operating cost of less than 5 US cents per day, this wastewater treatment technology meets benchmarks for affordability in the developing world. It also has the potential to protect human health and ecosystem well-being in communities most at risk to disease and resource-loss through environmental pollution. [Resnick Institute story]

Tags: honors energy research highlights health ESE Michael Hoffmann Cody Finke Justin Jasper postdocs

Popping Microbubbles Help Focus Light Inside the Body

12-03-15

Changhuei Yang, Professor of Electrical Engineering, Bioengineering, and Medical Engineering, and his postdoctoral colleague Dr. Haowen Ruan have developed a novel technique called time-reversed ultrasound microbubble encoded (TRUME) that uses gas-filled microbubbles to focus light inside tissue. "Ultrasound and X-ray techniques can only detect cancer after it forms a mass," Yang says. "But with optical focusing, you could catch cancerous cells while they are undergoing biochemical changes but before they undergo morphological changes." [Caltech story]

Tags: EE Changhuei Yang MedE health research highlight postdocs

Cancer Treatment in a Painless Patch

11-05-15

Mechanical engineering undergraduate student, Teo Wilkening, spent this past summer working with Professor Gharib to test the preliminary design for an alternative—and possibly much less painful—method of chemotherapy drug delivery through a patch. To avoid the pain caused by the large needle traditionally used for such an intravenous injection, the team envisioned a patch containing hundreds of micrometer-scale needles, too small in diameter to be sensed by the nerves in the skin. [Caltech story]

Tags: GALCIT MedE MCE Morteza Gharib research highlight Teo Wilkening

Digital Holographic Microscopy

10-26-15

Professor Morteza Gharib, and Dr. Jay Nadeau from GALCIT, as well as Dr. Christian Lindensmith from JPL are three of the four principle investigators on the holographic microscope project, dubbed SHAMU (Submersible Holographic Astrobiology Microscope with Ultraresolution). Their ultimate goal is to send the microscope on a spacecraft to search for biosignatures—signs of life—on other worlds such as Mars or Saturn's icy moon Enceladus. Holography is a method for recording holistic information about the light bouncing off a sample so that a 3-D image can be reconstructed at some later time. Compared to microscopy, holography offers the advantages of focusing over a relatively large volume and of capturing high-resolution images, without the trouble of moving parts that could break in extreme environments or during a launch or landing. [Caltech feature] [Videos of microbial mobility]

Tags: GALCIT Morteza Gharib JPL research highlight Jay Nadeau Christian Lindesmith

Toward a Smarter Grid

10-19-15

The power network of the future—also known as the smart grid—will have to be much more dynamic and responsive than the current electric grid, handling tremendous loads while incorporating intermittent energy production from renewable resources such as wind and solar, all while ensuring that when you or I flip a switch at home or work, the power still comes on without fail. An interdisciplinary group of engineers, economists, mathematicians, and computer scientists, including Professors Steven Low and Adam Wierman are working to develop the devices, systems, theories, and algorithms to help guide this historic transformation and make sure that it is properly managed. [Caltech feature]

Tags: EE research highlights CMS Adam Wierman Steven Low

Inaugural Centers Announced for the Materials Genome Initiative

10-05-15

William A. Goddard III, Charles and Mary Ferkel Professor of Chemistry, Materials Science, and Applied Physics, will be the Caltech Principle Investigator for one of U.S. Department of Energy’s inaugural centers for the Materials Genome Initiative (MGI). The initiative was launched by the White House to “help businesses discover, develop, and deploy new materials twice as fast.” The three inaugural centers are receiving $8 million to “integrate theory and computation with experiment and provide the materials community with advanced tools and techniques in support of the MGI.” Professor Goddard and colleagues will be working on the Computational Synthesis of Materials Software Project with the goal of developing the next-generation of methods and software to predict and control materials processes at the level of electrons. [Learn more]

Tags: APhMS research highlights William Goddard