Team

Director

Professor of Chemistry, University of California, Irvine

Ultrafast nonlinear spectroscopy

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

Senior Personnel

Professor of Chemistry, University of California, Santa Barbara

Tailored synthesis of molecular complexes with controlled photophysical & photochemical properties

(805) 893-5538 | bazan@chem.ucsb.edu | Group page

Associate Professor of Chemistry, University of California, Irvine

Ultrafast 2-D IR spectroscopy

(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

Professor of Chemistry, University of California, Irvine

Theoretical Chemical Physics

(949) 824-8768 | craig.martens@uci.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, University of Chicago

Time-domain study of chemical reactions photochemical properties

(773) 702-7069 | nfschere@uchicago.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

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

Stacey Freeman
Director of Education, Outreach and Diversity
949-824-9473 | stacey.freeman@uci.edu

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

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

Project Scientists & Specialists

Zhaoqiang Bai
Assistant Specialist, Wu group
zhaoqiang.bai@uci.edu | Group page

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
Assistant Specialist, UC Irvine, Ge group

Ultrafast nonlinear spectroscopy, multidimensional infrared spectroscopy and nonlinear microscopy.

hmaekawa@uci.edu | Group page

Ananth Tamma
Associate Specialist, UC Irvine, Wickramasinghe group
ananth.tamma@uci.edu | Group page

Dingwang Yuan
Visiting Associate Researcher, UC Irvine, Wu group
Study chemical properties of small molecules on metal surfaces and nanocatalysts using first-principles calculations.
dingwany@uci.edu | Group page

Postdoctoral Scholars

Lauren Buchanan
Northwestern University, Van Duyne group
lauren.buchanan@northwestern.edu | Group page

Jonathan Burdett
UC Irvine, Wickramasinghe Group

My research is focused on improving the reliability image force microscopy and spectroscopy by investigating methods of near field excitation with pulled optical fibers, as well as extending these measurements to the time resolved domain.

jburdett@uci.edu | Group page

Xing Chen
Penn State University, Jensen group
xzc4@psu.edu | Group page

Jun Hu
UC Irvine, Wu group
huj1@uci.edu | Group page

Eero Hulkko
UC Irvine, Apkarian group

Ultrafast spectroscopy and light-matter interactions in plasmonic nanoparticles. Focusing on single molecule SERS/TERS in different nanoparticle geometries and development of ambient light induced fs-STM microscopy.

ehulkko@uci.edu

Hikari Kimura
UC Irvine, Ho group

Study ultrafast dynamics in the single molecule level at space-time-frequency domain with using tunable femtosecond laser coupled UHV-LT-STM.

hkimura@uci.edu | Group page

Karthick Kumar
UC Irvine, Ge group
ksomangi@uci.edu | Group page

Xuejun Liu
UC Irvine, Potma group
xuejunl@uci.edu | Group page

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

Zijie Yan
University of Chicago, Scherer group

I am studying the interactions of light with metal nanoparticles by simulation and experiment, and developing optical methods to trap, manipulate and assemble plasmonic nanostructures.

zijieyan@uchicago.edu | Group page

Haigang Zhang
UC Irvine, Ho group

Studying single molecular chemistry by scanning tunneling microscope.

haigangz@uci.edu | Group page

Graduate Students

Mayukh Banik
UC Irvine, Apkarian group
banikm@uci.edu

Jordan Brocious
UC Irvine, Potma group

I study the ultrafast nonlinear optical processes of nano-structured materials and work to extend this to the single molecule regime through the measurement of light-induced changes in the attractive force between a cantilevered atomic force microscope tip and the polarizable medium.

jbrociou@uci.edu | Group page

Weicai Cao
UC Irvine, Ho group

Femtosecond Light-Molecule Interaction with a Tunable Wavelength Femtosecond Laser Coupled STM

wcao@uci.edu | Group page

Dhabih V. Chulhai
Penn State University, Jensen group

Theory and method development as it relates to light/matter interactions. Primarily concerned with the response of molecules coupled to plasmonic nanoparticles.

dvc121@psu.edu | Group page

Cindy Cooper
University of Utah, Shumaker-Parry group

My research is focused on the characterization and application of gold and silver plasmonic nanocrescents. The localized surface plasmon resonances (LSPR) of these structures have been shown to be polarization dependent, leading to selective excitation of unique resonance modes, and maintain nanoscale resonance behavior into microscale dimensions, resulting in resonance frequencies over a visible to infrared frequency range. We are working with the Ge and Potma groups to integrate nanocrescent substrates into surface enhanced sum frequency vibrational spectroscopy.

ctaylor@chem.utah.edu | Group page

Jessica Coughlin
UC Santa Barbara, Bazan Group
Synthesis and characterization of materials for optoelectronic applications.
jcoughlin@chem.ucsb.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

Gregory Czap
UC Irvine, Ho group

My current research efforts are focused on using a low-temperature ultra-high vacuum Scanning Tunneling Microscope (STM) coupled to a femtosecond laser and CCD camera to explore the electronic states, charge transfer, light emission and absorption, plasmon resonance and catalysis enhancement of single molecules and nanostructures with sub-Angstrom spatial resolution. Presently we are investigating the spatial dependence of plasmon-enhanced catalysis in the vicinity of gold nanoparticles.

gczap@uci.edu | Group page

Natalie Gruenke
Northwestern University, Van Duyne group

My research involves exploring different plasmonic substrate systems for use in the new technique of surface-enhanced femtosecond stimulated Raman spectroscopy.  Our aim to to watch chemical reactions on the femtosecond timescale of nuclear motion by combining the plasmonic enhancements provided by surface- and tip-enhanced Raman spectroscopy with the time resolution of ultrafast spectroscopies.

nlg@u.northwestern.edu | Group page

Yang Han
UC Irvine, Ge group

We are exploring a novel imaging scheme, based on vibrationally resonant sum frequency generation (VR-SFG). The microscope provides us with unprecedented resolution and imaging speed, together with chemical selectivity and phase sensitivity. We have been using this technique to study collagen assemblies in animal tissues and various crystaline structures.

yhan3@uci.edu | Group page

Fei Huang
UC Irvine, Wickramasinghe group
feih@uci.edu | Group page

Brittany Hyland
UC Irvine, Martens group

Developing theoretical models to explain Jahn-Teller systems

bhyland@uci.edu | Group page

Junghoon Jahng
UC Irvine, Potma group

Studying optically induced force (Image force, Raman force, Plasmonic force, etc) microscopy and spectroscopy by combining atomic force microscope with optical microscope. Key words: optical gradient forces (plasmonic force, image force, Raman force), near-field optics, nonlinear optics, AFM

jjahng@uci.edu | Group page

Chi-lun Jiang
UC Irvine, Ho group
Scanning Tunneling Microscopy, IETS, Inelastic Tunneling Probe
jiangc@uci.edu | Group page

Jordan M. Klingsporn
Northwestern University, Van Duyne Group

I am currently utilizing ultrahigh vacuum tip-enhanced Raman spectroscopy (UHV-TERS) to solve challenging chemical problems that require pushing the limits of space and time. UHV-TERS allows pristine samples to be prepared and studied with Ångstrom-scale topographical resolution, nanometer spectroscopic resolution, sensitivity down to a single-molecule, and currently I am working towards incorporating picosecond temporal resolution.

jordanklingsporn2014@u.northwestern.edu | Group page

Cady Lancaster
University of Utah, Shumaker-Parry group

I am investigating the development of a gold nanocrescent/alumina substrate for surface enhanced spectroscopy investigations of catalytically-active triphenylphosphine-stabilized gold nanoclusters.

lancaster.cdy@utah.edu | Group page

Julia Majors
UC Irvine, Apkarian group

I study plasmon dynamics on STM tips via grating coupling of femtosecond laser pulses in an effort to produce coherent field emission of electrons at the tip apex for future applications in time resolution of tunneling measurements at the single molecule level.

jmajors@uci.edu

Calvin 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

Shawn M. Perdue
UC Irvine, Apkarian group

Pursuing understanding and videography of chemistry at very fine limits of space and time through the combination of ultrafast spectroscopy and scanning probe microscopy. Studying the interactions between ultrashort pulses and sharp metal tips in terms of plasmon dynamics, field enhancement, and ultrafast electron emission.

shawn.perdue@uci.edu

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
kater@uci.edu

Nolan Shepherd
University of Chicago, Scherer group
shephe78@uchicago.edu | Group page

Weikang Sun
UC Santa Barbara, Bazan Group

My primary research is in fabricating and analyzing solution-processed polymeric and small-molecule solar cells.  I am specifically interested in understanding and controlling the relationship between processing conditions and the resulting heterojunction morphology and electrical properties of the device.

wsun@engineering.ucsb.edu | Group page

Mark Swartz
University of Utah, Shumaker-Parry group
mmswartz@mac.com | Group page

Nicholas Tallarida
UC Irvine, Apkarian group
ntallari@uci.edu

Philip Weiss
Penn State University, Jensen group
paw197@psu.edu | Group page

Chen Xu
UC Irvine, Ho group

Single Molecule Vibrational Spectroscopy

cxu@uci.edu | Group page

Steven Yampolsky
UC Irvine, Apkarian group

Time Resolved Four Wave Mixing Spectroscopy (CARS, Transient Grating) with Visible Femtosecond Pulses.  Current systems of interest include: Bulk Magnesium Porphyrin, Silicon Naphthalocyanine in solution, Plasmon Propagation along thin film gold using four wave mixing to create an optically controlled grating to couple a third beam to Surface Plasmon Polaritons.

syampols@uci.edu

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

External Advisory Board

Hrvoje Petek
Richard King Mellon Chair in Physics and Astronomy, University of Pittsburgh

Robert J. Phillipy
President CEO, Newport Corporation, Irvine

George Schatz
Professor of Chemistry, Northwestern University

Paul Weiss
Professor of Chemistry and Biochemistry, UCLA