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.

since 2010:

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 Universität, Munich

Joanna Atkin

Office: D1B17, 

Spatially and time-resolved tip-enhanced near-field spectroscopy on plasmonic and crystalline materials, with a focus on correlated matter. Raman and nonlinear techniques to study symmetry and ferroic order, and ultrafast dynamics on the nanoscale.

Eric Muller

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-bradband 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.

Honghua Yang

Physics Graduate Student
D1B19, (303)647.9449

Low temperature sSNOM, with applications in correlated electron materials. Plasmonic/optical antenna simulation.

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.

Ben Pollard

Physics Graduate Student
Office: D1B17, (303)647.9449

Infrared sSNOM on optical antennas and block copolymers with pseudo-heterodyne detection. Ultrafast mid-IR laser sources.


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.

Will Lewis

Physics Graduate Student
D1B21, (303)647.9449

Development of low repetition rate ultrafast s-SNOM techniques. Study of near-field enhanced light-matter interaction in both the spectral and time domain. Modeling of and developing physical understanding for thermal near-field spectroscopy.

Sven Donges

Physics Graduate Student
D1B21, (303)647.9449

Low temperature ultrafast IR s-SNOM.

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.

Paul Sass

Physics/Math Undergraduate Student
Research intern at EMSL/PNNL


Spatially and time-resolved tip-enhanced near-field spectroscopy on crystalline materials, with a focus on low dimensional systems.


Dan Hammerland

Physics Undergraduate 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

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

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 Tübingen 2010, TU Darmstadt