Optics & Plasma

	V. Ara Apkarian Understanding of photophysics and chemical dynamics in condensed media is the major thrust of our research. These studies invariably involve laser-based spectroscopic techniques that are implemented in both frequency and time domain, over the spectral range from far infrared to the deep ultraviolet.
	Ozdal Boyraz Dr. Boyraz works on integrated optics, optical communications systems, radiation detection and microwave photonics. In particular, his recent research activities focus on silicon and silicon nitride nano photonic devices, nonlinear optics in silicon, planar chip scale bio sensing technology, microwave photonics and silicon/silicon nitride based optical antennas and beam formation
	Suzanne A. Blum Research in the Blum Group focuses on the development of new catalysts and metal-mediated reactions with applications in organic synthesis. We are also developing single-molecule techniques to image catalytic reactions at individual transition metal centers. These single-molecule techniques are part of a big-picture, ground-breaking project to change the way chemists think about studying chemical reaction mechanisms: by actually watching reactions live, one molecule at a time
	Chris Barty Professor Barty’s present research aims to enable new, laser-based, x-ray modalities for the precision detection and treatment of disease, novel x-ray studies of ultrafast material dynamics and the emergence of nuclear photonics as a new scientific discipline.
	Robert Corn Characterization of molecular monolayers at metal surfaces by polarization- modulation FTIR reflection absorption spectroscopy (PM-FTIR-RAS) and optical second harmonic generation (SHG) measurements of orientation, organization, and electron transfer processes at liquid/liquid electrochemical interfaces
	Franklin Dollar The Dollar Research Lab specializes in the interaction of light at extremely high intensities with the fourth state of matter, plasma. These highly nonlinear interactions result in the generation of unique sources of radiation in a compact space. X-rays, ions, electrons, and neutron beams are created from sources smaller than millimeter-scale. There is a potential for these sources to have wide-reaching applications including medical physics, fusion energy, and to probe the fastest and smallest events in the known universe.
	Nien-Hui Ge We are exploiting new experimental techniques such as ultrafast multidimensional multicolor IR spectroscopy that are vibrational analogues of multidimensional NMR. The extension beyond a single dimension gives these techniques the ability to disentangle structural information from complex spectra where the couplings, correlations, and relative angular orientations between structural units are revealed as “cross peaks”
	R. Benny Gerber Vibrational spectroscopy is among the main tools of physical chemistry in the exploration of molecular properties. Interpretation of the experiments requires theoretical calculations of the spectra, and for large, non-rigid molecules this is a formidable challenge. An algorithm developed in our group in recent years, the Vibrational Self-Consistent Field (VSCF) method(1), led to major progress on this problem, and has emerged as a leading tool in this field.
	Howard (Ho Wai) Lee We are working projects on studying the interesting physics of the light properties in plasmonic and metasurface nanostructures and 2D materials for instance, field-effect tunable phase and amplitude modulation, spin-orbit interaction of light, optical nonlinearity and harmonic generation, and non-reciprocal magneto-optical Faraday rotation.
	Ali Mohraz The aim of research in my group is to understand and exploit colloidal interactions, chemistry, assembly, and response to external fields to design microstructured materials with enhanced functionality for composites, biomimetic applications, alternative energy, and environmental remediation. Current projects involve both fundamental and applied elements of colloid synthesis and surface modification, microfluidics, guided- and self-assembly, and characterization of structure and dynamics by quantitative confocal microscopy and light scattering.
	Shaul Mukamel My interests focus on the modeling of ultrafast dynamics and relaxation processes of large molecules, biological complexes and semiconductors and how they can be probed by novel optical spectroscopic techniques. My group works on developing coherent optical and infrared pulse sequences which accomplish goals analogous to multidimensional NMR and have the capacity to probe protein structures and dynamics with high temporal, spectral, and spatial resolution.
	Sergey Nizkorodov We are interested in the mechanisms of photochemical interactions between the solar radiation and atmospheric aerosol particles. Can aerosol particles serve as efficient catalysts of photochemical processes? What sort of chemistry happens inside these particles as they drift through the atmosphere exposed to solar radiation? Can photochemical reactions on particle surfaces make the particles more toxic? In our laboratory, we try to find answers to these intriguing problems using modern analytical techniques based on laser spectroscopy, chromatography, and mass- spectrometry.
	Eric Potma We employ multimodal nonlinear microscopy tools (CARS/SHG/TPEF) to quantitatively image biological tissues and structures. We are also interested in characterizing the nonlinear optical properties of nanostructures. The third order optical response of nano-compounds is explored by detecting the coherent anti-Stokes electronic signatures of such systems. We use focus-engineered CARS techniques to improve contrast in nonlinear microscopy.
	Toshiki Tajima Professor Tajima is a theoretician whose research investigates accelerator physics, plasma physics, fusion, laser physics, astrophysics and medical applications of physics, authoring over 500 papers and 8 books in total. Most prominently, he is the inventor (with Prof. John Dawson) of laser wakefield acceleration (LWFA) and has been involved in a number of theoretical and collaborative experimental projects around the world.

Prof. Ty Christoff-Tempesta joins the ChAMP Program

Fall 2024

Ty Christoff-Tempesta is an Assistant Professor of Materials Science and Engineering

Prof. Christoff-Tempesta specializes in molecular design to engineer hierarchical properties in soft matter systems, combining organic chemistry, molecular self-assembly, and polymer science to create innovative materials. His group focuses on advancing sustainable materials with circular life cycles, derived from renewable resources, and designed for recyclability or upcyclability.

Current research activities include (1) developing new molecular design principles for sustainable materials, (2) using electron paramagnetic resonance (EPR) spectroscopy to study nanoscale dynamics and establish design rules for material behavior, and (3) designing functional supramolecular materials that self-organize and scale from nanoscale to macroscale. The lab’s research aims to address critical global challenges, such as providing sustainable alternatives to plastics, improving environmental remediation, and advancing technologies for energy and healthcare applications.

https://faculty.sites.uci.edu/tctlab/

Welcome 2024 ChAMP students!

Prof. Lorenzo Valdevit joins the ChAMP Program

Summer 2024

Lorenzo Valdevit is a Professor and Chair of Materials Science and Engineering

Prof. Valdevit works in the general areas of mechanics of materials, structural materials science and advanced manufacturing, developing analytical, numerical and experimental techniques across multiple length scales. Among his primary research goals are the optimal design, modeling, fabrication and experimental characterization of metamaterials and structures with unprecedented combinations of properties. Current areas of interest are the investigation and exploitation of beneficial size effects in nano-architected materials, the non-linear design of periodic and disordered mechanical metamaterials, and the understanding of the processing / microstructure / properties relations in additive manufacturing (in particular, two-photon polymerization Direct Laser Writing, Direct Ink Writing, Laser Powder Bed Fusion and Cold Spray Deposition).

https://valdevit.eng.uci.edu

Prof. Alvin Yu join the ChAMP Program

Summer 2024

Alvin Yu is an Assistant Professor of Physiology & Biophysics

Many cellular processes that are considered the hallmarks of living systems undergo physical and chemical processes ranging from atomic-scale phenomena, including the quantum chemistry of bond cleavage, to micrometer-sized processes such as the self-assembly of proteins. These processes are innately multiscale and span time and length scales from the molecular to mesoscopic. Alvin Yu’s research group investigates the mechanisms by which biological processes function and elucidates them using theory, computational modeling, and simulations.

https://faculty.uci.edu/profile/?facultyId=7131

Prof. Matthew Sheldon joins the ChAMP Program

Fall 2023

Matthew Sheldon is an Associate Professor of Chemistry

Sheldon’s research group studies fundamental questions about optical energy conversion relating to plasmonic and inorganic nanoscale materials. Experiments are principally designed to identify and optimize unique nanoscale phenomena that are useful for solar energy, as well as related opportunities at the intersection of nanophotonics and chemistry, for broad application beyond the scope of solar energy. Current research activities explore how nanofabricated materials can provide systematic control over the thermodynamic parameters governing optical power conversion. By controllably shaping, confining, and interconverting the energy and entropy of a radiation field, several different classes of light-powered heat engines become possible.

Prof. Robert Nielsen joins the ChAMP Program

Fall 2023
Robert Nielsen is an Assistant Professor of Chemical and Biomolecular Engineering.
Nielson’s research interests include quantum mechanical, microkinetic, and data modeling to understand and control chemical reactivity. His group has recently begun a general effort to replace screening in computational materials design problems with optimization. The process combines some representation of Schrodinger’s equation, stat mech, kinetic modeling, traditional chemistry ideas and data science.
https://engineering.uci.edu/users/robert-nielsen

Prof. Sabee Molloi joins the ChAMP Program

Summer 2023

Sabee Molloi is a Professor & Vice Chairman of Research, Radiological Sciences

Molloi’s research interests include quantitative aspects of medical x-ray imaging and its applications to cardiac and breast imaging.

Some of his current projects include:

Spectral breast CT
Myocardial blood flow measurement using CT and its applications to coronary artery disease
Pulmonary blood flow measurement using CT and its applications to lung disease
Quantification of myocardial mass at risk
Detection of ischemic stroke using dual energy CT

https://faculty.uci.edu/profile/?facultyId=3212

2023 Summer BBQ

ChAMP ushered in the new class at our annual summer BBQ on July 14th. Welcome students!

Prof. Elizabeth Lee joins the ChAMP program

Fall 2022

Elizabeth lee is an Assistant Professor of Materials Science and Engineering.

Lee’s research interests lie within the broad field of computational materials and chemistry, particularly electronic and chemical processes in solid-state and nanostructured semiconductors. Her research aims to bring fundamental understanding of how the dynamical arrangement of atoms and their electronic structure impact the material-wide properties during their synthesis, processing, and device operating conditions.

Current research activities focus on three areas: (1) quantum point defects in semiconductors, (2) solid-state interfaces in materials for energy applications, and (3) methodological developments for materials modeling using machine learning approaches.

(https://engineering.uci.edu/users/elizabeth-my-lee)

Prof. Ryan Hayes joins the ChAMP program

Fall 2022

Ryan Hayes is an Assistant Professor of Chemical and Biomolecular Engineering.

Protein engineering and design has exciting applications in biocatalysis, therapeutics, and nanotechnology. While there are many experimental and computational approaches to protein engineering and design, computational approaches typically suffer from low accuracy. This makes them dependent on high throughput experimental validation and optimization. Therefore, research in the Hayes group focuses on improving the accuracy of computational protein design to enable more efficient use of experimental resources (https://faculty.sites.uci.edu/rhayes1/)