Team

Director

Professor of Chemistry, University of California, Irvine

Ultrafast nonlinear spectroscopy

(949) 824-6851 | aapkaria@uci.edu | Group page

Senior Personnel

Associate Professor of Chemistry, University of California, Irvine

Ultrafast nonlinear spectroscopy and microscopy

(949) 824-1263 | nhge@uci.edu | Group page

Donald Bren Professor of Chemistry and Physics, University of California, Irvine

Spectroscopy with submolecular resolution using inelastic STM

(949) 824-5234 | wilsonho@uci.edu | Group page

Assistant Professor of Chemistry, Penn State University

Theory of Molecular Plasmonics and Computational Spectroscopy

(814) 867-1787 | jensen@chem.psu.edu | Group page

Associate Professor, University of California, Irvine
(949) 824-5996 | matt.law@uci.edu | Group page

R. K. Mellon Professor, University of PIttsburgh

Condensed Matter Physics

(412) 624-3599 | petek@pitt.edu | Group page

Associate Professor of Chemistry, University of California, Irvine

Non-linear optical (CARS) microscopy

(949) 824-9942 | epotma@uci.edu | Group page

Professor of Chemistry, Northwestern University

Energy Science; Theory & Computation

(847) 491-5657 | schatz@chem.northwestern.edu | Group page

Associate Professor of Chemistry, University of Utah

Interfacial & Bioanalytical Chemistry (IBAC) photochemical properties

(801) 585-1434 | shumaker-parry@chem.utah.edu | Group page

Charles E. and Emma H. Morrison Professor of Chemistry, Northwestern University

Surface-Enhanced Raman Spectroscopy

(847) 491-3516 | vanduyne@northwestern.edu | Group page

Professor of Electrical Engineering & Computer Science, University of California, Irvine
(949) 824-0378 | hkwick@uci.edu | Group page

Physics and Astronomy, University of California, Irvine

Condensed Matter Physics

(949) 824-7640 | wur@uci.edu | Group page

Collaborators

Associate Professor of Physics & Astronomy, University of California, Irvine
(949) 824-9961 | collinsp@uci.edu | Group page

Professor of Chemistry, University of California, Irvine
(949) 824-1746 | rcorn@uci.edu | Group page

Researcher, University of Jyväskylä
+358 40 805 4356 | karoliina.honkala@jyu.fi

Professor of Chemistry, University of California, Irvine
(949) 824-8572 | rmpenner@uci.edu | Group page

Professor of Chemistry, The University of Liverpool
+44-151-794 3518 | mpersson@liv.ac.uk

Associate Professor of Chemistry, University of California, Irvine
(949) 824-5566 | gweiss@uci.edu | Group page

Director, Technology and Applications Center
(949) 863-3144 | ruben.zadoyan@newport.com

Professional Staff

Erika Metz
Administrative Specialist
949-824-4560 | emetz@uci.edu

André Schirotzek
Managing Director
949-824-2646 | schiro@uci.edu

Danielle Watt
Director, Education and Outreach
949-824-9473 | dwatt@uci.edu

Project Scientists & Specialists

Joonhee Lee
Project Scientist, UC Irvine, Apkarian group

Time-resolved scannning tunneling microscopy, Single molecule Raman Spectroscopy, Ultrafast electron dynamics in plasmonic materials

joonhee@uci.edu

Hiroaki Maekawa
Associate Specialist, UC Irvine, Ge group

Ultrafast nonlinear spectroscopy, multidimensional infrared spectroscopy and nonlinear microscopy.

hmaekawa@uci.edu | Group page

Venkata Ananth Tamma
Associate Specialist, UC Irvine, Wickramasinghe group

Studying the use of optical forces to investigate light-matter interaction at the single molecule level. Development of novel Tip Enhanced Raman (TERS) techniques such as stimulated-TERS and their application towards single molecule spectroscopy. Research areas of interest: Near-field optics, plasmonics, scanning probe microscopy and spectroscopy.

ananth.tamma@uci.edu | Group page

Postdoctoral Scholars

Mayukh Banik
UC Irvine, Apkarian group

Understanding orientation dependent chirality of single metallic nano-dimers invoking magnetic dipole and electric quadrupole to SERS effect.

banikm@uci.edu

Lauren Buchanan
Northwestern University, Van Duyne group

My research uses surface-enhanced ultrafast nonlinear spectroscopies to study the effect of plasmonic enhancement on ultrafast dynamics in nanomaterials relevant to photovoltaics and photocatalysis. The goal is to push the sensitivity of these measurements toward the single molecule regime.

lauren.buchanan@northwestern.edu | Group page

Craig T. Chapman
Northwestern University, Schatz group

My research is focused on understanding the dynamical behavior of molecular systems, with special attention to the areas of clean energy, human health, and technology. The principle research strategies I employ include cutting-edge quantum chemical computational techniques as well as analytical theory.

craig.t.chapman@gmail.com | Group page

Xing Chen
Penn State University, Jensen group

My research interests involve the method development for investigating the plasmonic response of metallic nanoparticles in quantum size regime and the plasmon-enhanced nonlinear spectroscopy.

xzc4@psu.edu | Group page

Maciej Dabrowski
University of PIttsburgh, Petek group

The dynamics of surface plasmons with sub-wavelength spatial resolution and sub-femtosecond temporal precision by using PEEM and LEEM.

mdabrows@pitt.edu | Group page

Zhansheng Lu
UC Irvine, Wu group

First-principles calculation on the environment and energy (three way catalysts, fuel cell and gas sensor) related material and Nano-materials

zhanshel@uci.edu | Group page

Sudipta Mukherjee
UC Irvine, Ge group
Ultrafast Nonlinear Spectroscopy, Nonlinear microscopy, Surface Enhanced Nonlinear spectroscopy
sudiptam@uci.edu | Group page

Bogdan Negru
Northwestern University, Van Duyne Group
My goal in the Van Duyne group is to use ultrafast spectroscopy to investigate vibrational dynamics of chemical 
systems deposited on nanoparticle substrates that provide surface enhancement effects.
bnegru@gmail.com | Group page

Shu-Ting Pi
UC Irvine, Wu group

Theoretical Condensed Matter Physics

spi1@uci.edu | Group page

Andrew Sirjoosingh
Northwestern University, Schatz group

My research interests include developing ways to model time- and energy-resolved two-photon photoemission experiments on metal surfaces as well as metal nanoparticles.

asirjoosingh@northwestern.edu | Group page

Shijing Tan
University of PIttsburgh, Petek group

I study the spectra and electron dynamics in surface plasmon enhanced photocatalysis with time-resolved two-photon photoemission spectroscopy.

tanshijing@gmail.com | Group page

Graduate Students

Brian Albee
University of California, Irvine, Potma group

Construction and characterization of nanoscale Au plasmonic devices for the study of ultrafast electron transport processes and magnetic field enhancement, using a combination of photolithography, electrochemical, and focused ion beam (FIB) milling fabrication techniques.

balbee@uci.edu | Group page

Siyu Chen
UC Irvine, Ho Group

Single molecule microscopy and spectroscopy.

chens13@uci.edu | Group page

Kevin T. Crampton
UC Irvine, Apkarian group

My research involves investigating the coupling of light to surface plasmon polaritons via tailored, transient optical gratings. This coupling scheme is then utilized to remotely launch surface plasmons at nanojunctions to drive and monitor space-time resolved chemistry.

kcrampto@uci.edu

Yanan Dai
University of PIttsburgh, Petek group

Ultrafast photoemission electron microscopy of plasmonic nanostructures

yad17@pitt.edu | Group page

Kan Fu
UC Irvine, Law group

STM studies of coupling in QD oligomers, Inductive effect of organic ligands for quantum dots.

kanf@uci.edu | Group page

John Houlihan
University of California, Irvine, Apkarian group

Manipulation of nanoparticles to fabricate enhanced magnetic field structures, electrical characterization of conductive polymers, and tip-enhanced raman spectroscopy by utilizing scanning electron microscopy and a nanomanipulation device.

houlihaj@uci.edu

Fei Huang
UC Irvine, Wickramasinghe group

I am doing force detection of sample optical response using AFM.

feih@uci.edu | Group page

Junghoon Jahng
UC Irvine, Potma group

Studying photo-induced force microscopy and spectroscopy by combining atomic force microscope with optical microscope. Key words: chemical imaging of a single molecule, optical binding.

jjahng@uci.edu | Group page

Sam Keene
UC Irvine, Law group

Optical and electronic studies of Quantum dot assemblies. Quantum dot field effect transistors and solar cells. Optical and mechanical manipulation of nanoscale objects.

| Group page

Ryan Khan
UC Irvine, Potma group

Studying photo-induced force microscopy, combining mechanical force detection with optical microscopy.

khanrm@uci.edu | Group page

Christian Kim
University of California, Irvine, Ho group

Study of single molecule dynamics with sub-angstrom spatial resolution and ultrafast temporal resolution using a femtosecond laser-coupled scanning tunneling microscope.

kimc8@uci.edu | Group page

Cady Lancaster
University of Utah, Shumaker-Parry group

Investigating cleaning techniques for gold nanoparticles to optimize thin film deposition and development of a gold nanocrescent/alumina substrate for surface enhanced spectroscopy

lancaster.cdy@utah.edu | Group page

Shaowei Li
University of California, Irvine, Ho group

Single Molecule Spectroscopy and Microscopy

shaoweil@uci.edu | Group page

Pengchong Liu
Penn State University, Jensen group

My research is focused on understanding the interactions between plasmonic nanoparticles and adsorbed molecules, and their effects on the optical properties on both of them. I'm also interested in developing new computational models for accurate and fast simulations of large plasmonic systems.

pbl5075@psu.edu | Group page

Zhongyue Luan
UC Irvine, Law group

My research involves building plasmonic nanocrystal dimer SERS platform for study of charge transfer. 

zluan1@uci.edu | Group page

Hannah Mayhew
Northwestern University, Van Duyne group

My research involves pairing plasmonic enhancement with excited state vibrational spectroscopies. I am interested in integrating ultrafast time resolution with nanoscale surface characterization techniques. The goal of this project is to study site-specific dynamics of materials relevant to photovoltaic devices.

hannahmayhew2014@u.northwestern.edu | Group page

Michael O. McAnally
Northwestern University, Van Duyne and Schatz Research Groups

My research focuses on understanding the fundamental physics behind plasmonically-enhanced coherent Raman scattering (CRS) spectroscopies from a combined experiment-theory approach. When CRS events are plasmonically-enhanced, unusual spectral behavior is observed due to the combination of plasmonically-enhanced optical fields with the coupled driven-oscillators of the molecule-plasmon-light interactions. Using a variety of experimental CRS techniques and theoretical analytic models for light-matter interaction in plasmonically-enhanced CRS, we are beginning to understand the physics at a deeper level.

michaelmcanally2011@u.northwestern.edu | Group page

Calvin Jay Patel
UC Irvine, Ho group

Research and development of a Radio Frequency Scanning Tunneling Microscope(RF-STM) with the capability to detect photon induced tunneling current for the purposes of combining femtosecond temporal resolution and sub-angstrom spatial resolution.

cjpatel@uci.edu | Group page

Eric Pozzi
Northwestern University, Van Duyne Group

My research concerns incorporating femtosecond temporal resolution with nanoscale surface characterization. Tip-enhanced Raman spectroscopy (TERS) is a technique through which the chemical properties of surface-bound molecules can be probed spectroscopically with spatial resolution on the order of single nanometers. While TERS is typically poor in temporal resolution, we have made advances toward the integration of ultrafast spectroscopic techniques, which will allow us to spatially resolve ultrafast surface dynamics relevant to many technologies.

ericpozzi2011@u.northwestern.edu | Group page

Lindsey Pruden
University of Utah, Shumaker-Parry group

My research focuses on the self-assembly of Au nanoparticle and Ag nanocube dimer structures to produce localized fields that will lead to enhanced Raman spectroscopy signals.

lindseypruden@chem.utah.edu | Group page

Laura Ríos
UC Irvine, Apkarian group

I propose to explore the rectifying abilities of DBDT for implementation in solar energy technology. Major characterization methods include STM and AFM experiments.

lrios2@uci.edu

Kate Rodriguez
UC Irvine, Apkarian group

My research focuses on investigating the Raman scattering process of plasmonic nanoparticles, typically consisting of metallic nanospheres functionalized with a molecular Raman reporter. Of particular interest are considerations such as the chirality of the plasmons and the interference effects that arise between the scattering processes of the metal and molecule. These phenomena are studied via polarization-resolved and intensity-dependent surface enhanced Raman spectroscopy.

kater@uci.edu

Emily Sprague-Klein
Northwestern University, Van Duyne Group

My research currently involves photostability studies of four-waving mixing substrates for surface-enhanced stimulated raman spectroscopy (SE-FSRS) and surface-enhanced coherent raman scattering (SE-CARS).  We have observed novel spectral features that can be explained by plasmon-driven hot electron chemistry and are working towards dynamic control of these charge transfer processes by utilizing increased temporal resolution.  I am also pursuing theoretical calculations of non-equilibrium electron dynamics in order to gain insight into rapid thermalization processes occurring within experimental ultrafast systems.

emilysprague2017@u.northwestern.edu | Group page

Nicholas Tallarida
UC Irvine, Apkarian group

I use a scanning tunneling microscope to study single molecule electron dynamics and Tip Enhanced Raman Spectroscopy. I am also investigating an intrinsically conductive metalorganic polymer for its use as molecular wires.

ntallari@uci.edu

Faezeh Tork-Ladani
UC Irvine, Potma group
Studying photo-induced force microscopy.
Analytical modeling and full wave simulations to study electrodynamics 
of a few geometries of nanostructures used for single molecule spectroscopy and imaging. 
ftorklad@uci.edu | Group page

Arthur Yu
UC Irvine, Ho group

Research specializing in femtosecond laser coupled STM, STM induced photon emission, single molecule spectroscopy / microscopy.

ayu1@uci.edu | Group page

Undergraduate Students

Facheng Guo
UC Irvine, Undergraduate Researcher, Potma group
fachengg@uci.edu | Group page

External Advisory Board

Mark Johnson
Arthur T. Kemp Professor of Chemistry, Yale University

Mostafa El-Sayed
Regents' Professor and Julius Brown Chair, Georgia Tech

Supratik Guha
Director, Physical Sciences, IBM Research

Robert J. Phillipy
President CEO, Newport Corporation, Irvine

Paul Weiss
Professor of Chemistry and Biochemistry, UCLA