Prof. Markus B. Raschke

markus.raschke@colorado.edu
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.

Wenjin Luo

Postdoctoral fellow
Wenjin.Luo@colorado.edu
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

Roland Wilcken

Postdoctoral fellow
roland.wilcken@colorado.edu
Office: C229

Interested in the understanding of photochemical and photocatalytic reactions by ultrafast spectroscopy and ultrafast nano-imaging methods. Also interested in the investigation and coherent control of chemical reactions and nanostructured materials with phase-shaped laser pulses in the tip-enhanced strong coupling regime.

PhD 2020- LMU Munich – Advisor: Eberhard Riedle

Ben Whetten

Physics Graduate Student
benjamin.whetten@colorado.edu
Office: D1B21

Tip enhanced photoluminescence spectroscopy and cavity nano-optics

Emily Chavez

Physics Graduate Student
emily.chavez@colorado.edu
Office: D1B17

Variable temperature IR s-SNOM, UHV, Ultrafast pump-probe spectroscopy.

Yueying Wang

Physics Graduate Student
yueying.wang@colorado.edu
Office: D1B20A

Terahertz nearfield nano-imaging and nano-spectroscopy, ultrafast time-resolved s-SNOM.

Richard Puro

Physics Graduate Student
richard.puro@colorado.edu
Office: D1B17

Infrared ultrafast spectroscopy and tip-enhanced strong coupling.

Fatema Fairooz

Physics Graduate Student
fatema.fairooz@colorado.edu
Office: D1B19

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

Nick Entin

Physics Undergraduate Research Assistant
Nicholas.Entin@colorado.edu

Interested in investigating FWM and hot electron PL signals, including how FWM and PL signals are quenched in the tunneling regime, comparing quantum versus classical coupling, and substrate-dependence on near-field coupling.

Sam Turner

Physics Undergraduate Research Assistant
satu9617@colorado.edu

IR SNOM, IR s-SNOM, and Raman Spectroscopy

Brian O’Callahan

Staff Scientist
brian.ocallahan@pnnl.gov
PNNL/EMSL

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).

Tao Jiang

Assistant Professor
Tao.Jiang@colorado.edu
Tongji University

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
fabian.menges@colorado.edu

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