Research

Linear and nonlinear microscopy and spectroscopy

Herman Offerhaus

We explore linear and nonlinear interactions of light and matter and exploit the (phase) characteristics to extract useful information. Applications include label-free imaging of pharmaceutics and tissue, analysis of (ground) water electrolytes, detection of pathogens. The research focused on the use of nonlinear optical interaction to detect and control small amounts of specific molecules without using fluorescent labels. This was expanded to include microscopy and integrated sensing and detection. Most recently it expanded into pharmaceutical and medical imaging.

Detection of Inorganic Ions by NIR light on-chip - Gerwin Steen
Development of an optical fiber based groundwater flow sensor - Sandra Drusova
EV Diagnostics for monitoring therapy by CARS - Wooje Lee
(Stimulated) Raman Imaging of Tissue for Tumor Identification - Elena Beletkaia

Integrated Optical Sciences

Sonia García Blanco

In the fast emerging field of Integrated Optics, our research focusses on Active Nanophotonic Devices: development of novel on-chip active devices (lasers and amplifiers) based on heterogeneous integration of rare-earth doped gain materials on passive photonic platforms, Integrated Optical Sensors and novel devices based on the combination of plasmonics and integrated optic.

WaterPrint: On-chip optical sensors for the fingerprinting of contaminants in drinking water - Pablo Muñoz Galindo,Yean-Sheng Yong
GLAM – novel photonic-based point-of-care device for cancer diagnosis - Michiel de Goede, Lantian Chang
On-chip tunable, high power, narrow linewidth lasers on a passive photonic platform - Jinfeng Mu
High bit rate on-chip nanoamplifiers in Er3+ doped double tungstate - Jinfeng Mu
Chipsens - Ward Hendriks
Integrated Waveguide Amplifiers for Optical Interconnects (IWAOI) - Yean-Sheng Yong, Sergio Vázquez-Córdova
RENOS:exploiting the gain characteristics of rare-earth doped KYW - Carlijn van Emmerik, Raimond Frentrop, Simen Martinussen

Active phase shaping and femtosecond spectroscopy

Jennifer Herek

Active control of the amplitude and phase of femtosecond light pulses allows us to create optical melodies. Such tailored pulse shapes can be fine tuned to specific electronic and vibrational response of a molecule to control its behavior in real time. We are pursuing applications in spectroscopy, medical diagnostics or treatment and the optimization of solar cell materials.

Former projects

Photophysics of molecular plasmonics - Qing Pan, Annemarie Huijser
Real-time probing of photoreduction of the catalytically active site in molecular photocatalysts using ultrafast x-ray absorption spectroscopy - Qing Pan, Annemarie Huijser
Particle manipulation by ultrasonic waves - Jorick van 't Oever
Integrated Waveguide Amplifiers for Optical Interconnects (IWAOI) - Yean Sheng Young, Sergio Vázquez-Córdova
Phase coherent nonlinear spectroscopy and sources - Erik Garbacik, Andrew Fussell, Birthe Kann, Martin Jurna, Alyssa Stephenson, Philip Chimento, Herman Offerhaus