Professor Chris Regan is principal investigator of the Regan Research Group. Goals include understanding quantum magnetism using The goal of TEP is to attain Rahul Roy. several postdocs and students each year. A team led by UCLA physics professor Chris Regan has succeeded in creating thermoelectric coolers that are only 100 nanometers thick — roughly one ten-millionth of a meter — and have developed an innovative new technique for measuring their cooling performance. Your email address is used The EBIC images produced previously unseen resolution and contrast. interactions. Our long term goals include a better understanding of the overlap between thermodynamics and quantum mechanics, and the construction of a model system for the investigation of clean energy harvesting. When an electrical current is applied to the device, one side becomes hot and the other cold, enabling it to serve as a cooler or refrigerator. LinkedIn is the world's largest business network, helping professionals like B.C. Medical Board Certifications Pediatrics, American Board of Pediatrics, 1986 Certification 2 Pediatric Hematology-Oncology, American Board of Pediatrics, 1990 Certification 3 To supplement the PEET measurements, the researchers invented a technique called condensation thermometry. theories, non-perturbative gauge theories, quantum gravity and string theory. Simply put, at larger scales, thermoelectric devices don’t generate enough electricity, or stay cold enough — yet. Researchers, Project Scientists, Adjuncts, Theoretical Elementary Particle Physics (TEP), Theory of Elementary Particles, Astroparticle Physics, and Phenomenology (TEPAPP), Mani L. Bhaumik Institute of Theoretical Physics, Plasma Science and Technology Institute (PSTI), Institute for Digital Research and Education (IDRE), Click here to view details of the Astronomy and Astrophysics Division research, Center for Quantum Science and Engineering, Click here to view details of AMO research, Click here to view details of the Hard Condensed Matter research, Click here to view details of the Soft Condensed Matter research, Click here to view details of the Experimental Elementary Particle Physics research, Theoretical Elementary Particle Physics Group, Click here to view details of the Theoretical Elementary Particle Physics research, Theory of Elementary Particles, Astroparticle Physics, and Phenomenology, Theory of Elementary Particles, Astroparticle Physics, and Phenomenology Group, Click here to view details of TEPAPP research, Click here to view details of Nuclear Physics research, Click here to view details of Plasma and Advanced Accelerators research, Click here to view details of the Science of Teaching research. 310-825-1040 Made by sandwiching two different semiconductors between metalized plates, these devices work in two ways. Associate Professor Condensed Matter Office: Knudsen 6-130M Phone: 310-825-4444 Email: Website. nonlinear dynamics and various high-field/high-power technologies. Professor Accelerator Physics Office: Knudsen 3-174A Phone: 310-206-4541 Email: Website. discovery of novel electronic materials, correlated electron The sought-after properties for materials in high-performance thermoelectric coolers are good electrical conductivity and poor thermal conductivity, but these properties are almost always mutually exclusive. As the team varied the amount of power applied to the coolers, the devices heated and cooled, and the indium correspondingly expanded and contracted. theory of nature beyond the Standard Model. “Watching them learn and innovate gives me a lot of hope for the future of thermoelectrics.”. If your cuticles were manufacturing these tiny coolers instead of fingernails, each finger would be churning out more than 5,000 devices per second. As the thermoelectric cooler becomes cold, a dewdrop (green) forms where the device’s two semiconducting materials overlap. When the device reached the dew point, tiny dewdrops instantly formed on its surface. Lisa Garibay The team exploited this effect by powering their device while watching it with an optical microscope. experimental nuclear physics and theoretical nuclear physics. To be clear, these miniscule devices aren’t refrigerators in the everyday sense — there are no doors or crisper drawers. focused on understanding the matter composed of quarks and gluons as described by Quantum Chromodynamics (QCD), which makes up This technology scaled up might one day replace the vapor-compression system in your fridge and keep your real-life soda frosty. How do you keep the world’s tiniest soda cold? The scientific instruments on NASA’s Voyager spacecraft, for instance, have been powered for 40 years by electricity from thermoelectric devices wrapped around heat-producing plutonium. James Rosenzweig. Read more. is a multidisciplinary field that attempts to illuminate the mechanisms underlying human learning in an effort to optimize education. The research was supported by STROBE, a Science and Technology Center funded by the National Science Foundation’s Division of Materials Research, and by the UCLA Division of Physical Sciences Entrepreneurship and Innovation Fund. August, 2017: Billy Hubbard and Jared Lodico at the Microscopy & Microanalysis (M&M) conference in St. Louis, MO. nanoemulsions, light and neutron scattering, and microfluidics. cross-disciplinary enterprise, which intersects heavily with high-energy density science, plasma physics, ultra-fast lasers, View B.C. Areas of study include basic plasma physics, fusion research, B.C. While thermoelectric devices have been used in niche applications due to advantages such as their small size, their lack of moving parts and their reliability, their low efficiency compared with conventional compression-based systems has prevented widespread adoption of the technology. 200 UCLA Medical Plaza Suite 265 Los Angeles, CA 90095 Get Directions View Map Phone 310-825-6708 Fax 310-206-5146. Our areas of expertise include carbon nanotubes, graphene, nanofabrication and in situ transmission electron microscopy. © 2020 Regents of University of California, “We have made the world’s smallest refrigerator,” said Regan, the lead author of a, In 2015, Regan’s research group developed a, Novel coronavirus (COVID-19) information for the UCLA campus community, Interactive map will crowdsource hate crime reports, Whether Californians vote may hinge on race, ethnicity, UCLA health survey finds. Primary Office UCLA Plastic Surgery 200 UCLA Medical Plaza Suite 465 Los Angeles, CA 90095 Get Directions View Map Phone 310-206-2451 Fax 310-206-3028 Subscribe to a UCLA Newsroom RSS feed and our story headlines will be automatically delivered to your news reader. Welcome to the UCLA Regan Research Group We are a physics research group with skills in both experiment and theory, and interests that are both fundamental and applied. The goal of theoretical Research Groundbreaking research, cutting-edge To measure the temperature of their thermoelectric coolers, the researchers deposited nanoparticles made of the element indium on each one and selected one specific particle to be their thermometer. 99% of the visible mass of the universe; as well as the fundamental nature of the neutrinos. Undergraduate Gavin Carlson works on nanoscale samples in the lab. In 2015, Regan’s research group developed a thermometry technique called PEET, or plasmon energy expansion thermometry, which uses a transmission electron microscope to determine temperatures at the nanoscale by measuring changes in density. Read more. We are a physics research group with skills in both experiment and theory, and interests that are both fundamental and applied. “We have made the world’s smallest refrigerator,” said Regan, the lead author of a paper on the research published recently in the journal ACS Nano. Regan’s professional profile on LinkedIn. spans the areas of perturbative gauge theories, lattice gauge A standard thermoelectric device, which is made of two semiconductor materials sandwiched between metalized plates. We investigate carbon nanotubes: their emissivity, optical conductivity, and thermal conductivity. Click image for full description and download. “We beat the record for the world’s smallest thermoelectric cooler by a factor of more than ten thousand,” said Xin Yi Ling, one of the paper’s authors and a former undergraduate student in Regan’s research group. Read more. Joseph Rudnick. quantum statistical mechanics and field theory, topological states of matter, and Majorana fermions. develops methods to bring new forms of quantum matter under control and uses existing systems to This Physics & Astronomy faculty group is active in the The science of teaching and learning particle physics is to attain a fundamental description of the laws of physics, the constituents of matter and their sonoluminescence in cryogenic liquids, such as alcohols, liquid nitrogen and liquid oxygen. All members of the Division carry out active research programs that garner widespread international recognition. Research includes acoustic They attached regular Scotch tape to hunks of the conventional bulk materials, peeled it off and then harvested thin, single-cystal flakes from the material still stuck to the tape. With funding from DOE and NSF the group supports Our research at UCLA focuses on how course design decisions impact student application and retention of physics and mathematics skills. UCLA scientists may have the answer. and low temperature physics studies such as theoretical investigations into the superfluid phase transition of liquid helium and search for the phenomenon of Physicists believe that the Standard Model (SM) of elementary particles must be part of a more fundamental and topical research. demonstrate new technologies and measurements. “Once we understand how thermoelectric coolers work at the atomic and near-atomic level,” he said, “we can scale up to the macroscale, where the big payoff is.”. systems, unconventional superconductivity, quantum magnetism, heavy-fermion physics, quantum critical phenomena, semiconductor physics, spintronics, B. Chris Regan's long term goals include a better understanding of the overlap between thermodynamics and quantum mechanics, ... Our research at UCLA focuses on how course design decisions impact student application and retention of physics and mathematics skills.
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