Current group members

Prof. Markus B. Raschke

Office: F535, (303)492-1366
Cell: (720)315-9705

Interest in linear and nonlinear optical spectroscopy at surfaces and of nanostructures. For simultaneous spatial information we explore new routes for ultrahigh resolution optical imaging far beyond the diffraction limit. Topics include single molecule spectroscopy, surface photochemistry, molecular plasmonics as well as surface electron dynamics and electron-phonon interaction.


University of Colorado


University of Washington


Staff Scientist, Max-Born-Institute for Nonlinear and Ultrafast Optics, and Humboldt University, Berlin


Postdoc, University of California, Berkeley


PhD, Max-Planck-Institute for Quantum Optics, and Technische Universitat, Munich

Omar Khatib

Postdoctoral fellow
D1B17, (303)647-9449

Ultrafast and nonlinear near-field nano-imaging and spectroscopy of correlated matter, van der Waals crystals, and other condensed matter systems; development of ultra-broadband nanospectroscopy in conjunction with Lawrence Berkeley National Laboratory; extending nanoscale near-field methods into the various life sciences including geochemistry, biology, and other soft matter systems.

PhD 2014 - University of California, San Diego - Advisor: Dr. Dimitri Basov

Eric Muller

Postdoctoral fellow
Office: D1B17, (303)647-9449

Tip-enhanced, time-resolved nanoscale imaging and spectroscopy of plasmons and phonons at surfaces, interfaces and nanostructured materials. We have developed ultra-broadband near-field vibrational spectroscopy in collaboration with the Advance Light Source synchrotron. We also investigate dynamic processes on their fundamental timescales with femtosecond time-resolved nano-spectroscopy.

PhD 2012 - University of California, Berkeley - Advisor: Dr. Charles B. Harris

Ronald Ulbricht

Postdoctoral fellow
Office: D1B17, (303)647-9449

Time-resolved probing of nanoscale material properties using linear and nonlinear light-matter interaction.

PhD 2012 - FOM-Institute AMOLF, Amsterdam - Advisor: Dr. Mischa Bonn

Bernd Metzger

Postdoctoral fellow
D1B17, (303)647-9449

Experience in laser light source development and ultrafast linear and nonlinear spectroscopy of complex plasmonic nanostructures and antennas in the visible and near-infrared spectral range. We aim toward pushing scattering near-field optical microscopy using resonant plasmonic tips as well as different nonlinear detection schemes to the single molecular level. Furthermore, in combination with ultrafast vibrational spectroscopy we seek for simultaneous femtosecond temporal resolution together with nanometer spatial resolution.

PhD 2014 - University of Stuttgart 

Sibel Ebru Yalcin

Postdoctoral fellow & Visiting Scholar
Office at 

Development of low and room temperature ultrafast infrared s-SNOM at our partner laboratory PNNL/EMSL as part of the user facility to image biological and environmental systems. Experience with tracking ultrafast Surface Plasmon Polariton pulses in space and time using heterodyne detection technique. Studying charge/energy transfer and imaging optoelectronic properties of many low dimensional materials at nanoscale using correlated
single molecule spectroscopy and electrostatic force microscopy (EFM).

Sven Doenges

Physics Graduate Student
D1B21, (303)647-9449

Ultrafast near-field pump-probe nano-imaging and spectroscopy, low temperature ultrafast infrared s-SNOM of correlated electron materials

Vasily Kravtsov

Physics Graduate Student
D1B19, (303)647-9449

Plasmon-enhanced and plasmon-mediated processes, tip-enhanced Raman spectroscopy, and ultrafast control on the nanoscale.

Brian O'Callahan

Physics Graduate Student
Office: D1B17, (303)647-9449

Thermal near-field optical microscopy to probe novel thermal properties on the nano-scale, graphene plasmon nano-imaging using sSNOM, and vanadium dioxide ultrafast pump-probe microscopy and near-field imaging.

Kyoung-Duck Park

Physics Graduate Student

Office: D1B21, (303)647-9449

Novel instrumentation on spatio-temporal-resolved low temperature plasmon-enhanced near-field/Raman spectroscopy for the multi-characterization of solid state nano-materials and plasmonic nano-structures.



Ben Pollard

Physics Graduate Student
Office: D1B17, (303)647-9449

Infrared s-SNOM on soft-matter materials and plasmonic antennas, exploring various detection schemes, and broadband mid-IR laser sources.



Peter Van Blerkom

Physics Graduate (Master's) Student

Data acquisition methods for ultrafast spatially resolved tip-enhanced near-field spectroscopy in the visible and IR, and x-ray crystallographic structure refinement.

Evan Anderson

Physics Undergraduate Honors Student




Dan Hammerland

Physics Undergraduate Honors Student

Spatially and time-resolved tip-enhanced near-field spectroscopy and scanning tunneling microscopy on low dimensional, room and low temperature systems.

Former Group Members

Joanna Atkin   Postdoc 2014; Professor, UNC Chapel Hill

Paul Sass   Honors Thesis 2013, Researcher at PNNL; graduate student Rutgers

Sam Berweger   graduate student, PhD 2012; Postdoc NIST

Justin Gerber   honor thesis 2013; graduate student UC Berkeley

Molly May   Honors thesis 2012; graduate student NIST Boulder

Rob Olmon   graduate student, PhD 2012; Intel Portland

Andrew Jones   graduate student, PhD 2012; femtolaser

Evan Jasper   Honors thesis 2012; graduate student Ohio State

Xiaoji Xu   Postdoc 2011; University of Toronto

Anqi Cheng  

Emily Chavez   undergraduate/REU, 2010-2012;

Erik Hebestreit   exchange student DAAD-RISE 2010, Diplom thesis 2012; graduate student University of Jena

Simon Hannibal   exchange student DAAD-RISE 2010; Manchester University

Ryan Murdick   postdoc, 2010; RHK

Erik Josberger   undergraduate research, visiting scientist, 2006-2010; graduate student UW

Kseniya Deryckx   undergraduate/graduate student, MS 2010; University of Washington School of Medicine

Julie Cass   REU student, 2010; graduate student UW

Alexandria Anderson   graduate student, MS 2010; Femtolasers, Max-Born Institute

Catalin Neacsu   graduate student Max-Born-Institute, PhD 2008, postdoc UW 2010; Femtolasers

Friedrich Kirchner   Diplom thesis, Humboldt University, 2009; Attoworld

Matthias Rang   Diplom Max-Born-Institute, UW, 2007; Forschungsinstitut am Goetheanum, CH

Rachel Hinman   summer student, 2009

Brent Crabtree   undergraduate, 2009

Felix Rust   undergraduate research, 2002-2004

Gesine Steudle   undergraduate research 2003-2004; PhD Humboldt University 2012

Leo Molina   graduate student 2003; PhD University of Tubingen 2010, TU Darmstadt