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

Lab administrator

Geoffrey Davis

Lab administrator

Office: DUAN F533

Sponsored projects specialist. Technical aid in ultra high vacuum scanning probe microscopy.

Postdoctoral researchers

Tao Jiang

Postdoctoral fellow
Office: D1B28

Tip-enhanced linear and nonlinear optical spectroscopy of low-dimensional materials and related devices; meanwhile I am designing a cryogen-free TERS system with Kyoung-Duck Park.

PhD 2015 - Fudan University, China - Advisor: Dr. Shiwei Wu

Fabian Menges

Branco Weiss fellow

Office: C229


Investigates the elementary steps of thermodynamic processes in quantum materials and molecules, by developing thermo-plasmonic nano-imaging and spectroscopy technique with spatio-temporal resolution down to the nanometer-femtosecond scale. Interested in the thermalization of molecular structures, the emergence of dissipative structures in strongly correlated materials, local thermoelectric effects in topological materials, phononic control of quantum phases, caloric effects in ferroic materials, polariton transport in van der Waals-layered materials.

PhD 2014 - ETH Zurich

Jun Nishida

Postdoctoral fellow

Ultrafast degenerate/non-degenerate near-field pump-probe spectroscopy and their further extension to multidimensional near-field spectroscopy. The samples of interest include catalytic molecular monolayers, organic/inorganic solar cells, and biological systems such as photosynthetic membranes.

PhD 2017 - Stanford University - Advisor: Dr. Michael D. Fayer

Wenjin Luo

Postdoctoral fellow
Office: D1B17

Ultrafast laser and grating tip-enhanced near-field optical spectroscopy, imaging of low-dimensional materials and related devices.

PhD 2019 - CAS, Shanghai, China - Advisor: Dr. Wei Lu and Dr. Weida Hu

Graduate students

Sven Doenges

Physics Graduate Student

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

Sam Johnson

Physics Graduate Student
Office: D1B21

Infrared s-SNOM on both soft and hard matter materials.

Thomas Gray

Physics Graduate Student
Office: D1B19

Infrared s-SNOM on both soft and hard matter materials.



Liang-Chun Lin (Jenny)

Physical Chemistry Graduate Student

Office: D1B17

Currently working with Molly and Tao in Raman lab on layered 2D TMDs imaging. Will also work with Fabian on Cryogenic plasmon-enhanced spectroscopy.

Yijian Cai

Physics Graduate Student
Office: D1B17

Ultrafast nonlinear spectroscopy and imaging of low-dimensional and nano-structured materials with nano-focused light source.

Detao Liu

Physics Graduate Student

Nano image of perovskite materials and other functional materials using IR s-SNOM.

Chuanlin Li

Physics Graduate Student

Full coherent control over quantum states of photons, phonons, and excitons in the strong coupling nano-cavity regime based on tip-enhanced Raman spectrum, photoluminescence.

Chengda Pan

Physics Graduate Student

Tip-enhanced near-field optical spectroscopy, imaging in low temperature and room temperature

Undergraduate students

Jun Yan

Engineering Physics Undergraduate Research Assistant
Office: D1B28. (720)878-2158

Using infrared near-field and far-field spectroscopy to probe thermal and magnetic properties with nanoscale and femtosecond resolution.

Nicholas Entin

Physics Undergraduate Research Assistant

Currently working with Fabian and testing/implementing new devices for thermo-plasmonic spectroscopy.

Joy Ma

Visiting Student

Raman spectroscopy on 2D materials and minerals.


Brian O'Callahan

Postdoctoral fellow

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).

Former Group Members

Zhou Zhou   Graduate student, Tongji University

Molly May   Graduate student, Phd 2019; Postdoc, University of Innsbruck

Omar Khatib   Postdoc 2019; Staff Scientist, Duke University

Kyoung-Duck Park   Postdoc 2018; Professor, UNIST, South Korea

Eric Muller   Postdoc 2018; Professor, Colgate University

Evan Anderson   Undergraduate Honor student 2018; Graduate student, University of Arizona, Tucson

Brian O'Callahan   Graduate student, PhD 2017; Postdoc, PNNL/EMSL

Jiarong Wang   Master student 2017

Vasily Kravtsov   Graduate student, PhD 2017; Postdoc, ITMO University (Saint Petersburg)

Ben Pollard   Graduate student, PhD 2017; Postdoc CU PER group

Bernd Metzger   Postdoc 2017; Research Scientist, TRUMPF

Ronald Ulbricht   Postdoc 2016; Nanyang Technological University

Peter Van Blerkom   Masters Student 2016

Dan Hammerland   Honors thesis 2016

Honghua Yang   Graduate student, PhD 2015; Bruker Inc.

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 CU Boulder

Rob Olmon   Graduate student, PhD 2012; Intel Portland

Andrew Jones   Graduate student, PhD 2012; Postdoc University of Wisconsn, Madison

Evan Jasper   Honors thesis 2012; graduate student Ohio State

Xiaoji Xu   Postdoc 2011; Professor, Lehigh University

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