Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter at the nanoscale. We do this by exploring ways to shape light and its environment. It's what we call active and passive control. Our current focus is on the interaction of light with biomolecules and nanostructures. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.
We participate in the EU-COST actions MP1102: Coherent Raman microscopy (MicroCor) and CM1202: Supramolecular photocatalytic water splitting (PERSPECT-H2O)

Stimulated-emission pumping enabling sub-diffraction-limited spatial resolution in coherent anti-Stokes Raman scattering microscopy

Probing the origin of fluorescence quenching of a graphene-porphyrin hybrid material

Hyperspectral coherent anti-Stokes Raman scattering microscopy for in situ analysis of solid-state crystal polymorphs

Active and Passive Control of Zinc Phthalocyanine Photodynamics

Measurement of a band-edge tail in the density of states of a photonic-crystal waveguide

Rapid identification of heterogeneous mixture components with hyperspectral coherent anti- Stokes Raman scattering imaging

Phase aspects of (broadband) stimulated Raman scattering

Extraction of optical Bloch modes in a photonic-crystal waveguide

Background-free nonlinear microspectroscopy with vibrational molecular interferometry

Computational optimization of phase shaped CARS

Background-Free Nonlinear Microspectroscopy with Vibrational Molecular Interferometry

Controlling the quality factor of a tuning-fork resonance between 9 and 300 K for scanning-probe microscopy

Coherent control of vibrational transitions: Discriminating molecules in mixtures

Influence of the length and grafting density of PNIPAM chains on the colloidal and optical properties of quantum dot/PNIPAM assemblies

A theoretical investigation of super-resolution CARS imaging via coherent and incoherent saturation of transitions

Implementation of vibrational phase contrast coherent anti-Stokes Raman scattering microscopy

Phase-shaping strategies for coherent anti-Stokes Raman scattering

Enhanced surface plasmon polariton propagation length using a buried metal grating

Investigation of adaptive laser pulse shaping by direct estimation of group delay profile

Imaging of surface plasmon polariton interference using phase-sensitive photon scanning tunneling microscope

Visualizing Resonances in the Complex Plane with Vibrational Phase Contrast Coherent Anti-Stokes Raman Scattering

Revisiting the optical properties of the FMO protein

Heterodyne interferometric polarization coherent anti-Stokes Raman scattering (HIP-CARS) spectroscopy

Exploring, tailoring, and traversing the solution landscape of a phase-shaped CARS process

Spatially dependent Rabi oscillations: An approach to sub-diffraction-limited coherent anti-Stokes Raman-scattering microscopy

Tailoring a coherent control solution landscape by linear transforms of spectral phase basis

Learning from evolutionary optimization by retracing search paths

High-resolution narrowband CARS spectroscopy in the spectral fingerprint region

Vibrational Phase Contrast Microscopy by Use of Coherent Anti-Stokes Raman Scattering

Robust orthogonal parameterization of evolution strategy for adaptive laser pulse shaping

Quantum control experiment reveals solvation-induced decoherence

Chemical Imaging of Oral Solid Dosage Forms and Changes upon Dissolution Using Coherent Anti-Stokes Raman Scattering Microscopy

Chemically selective imaging by spectral phase shaping for broadband CARS around 3000 cm−1

Carotenoid deactivation in an artificial light-harvesting complex via a vibrationally hot ground state

Spectral phase shaping for high resolution CARS

Coherent Anti-Stokes Raman Scattering microscopy to monitor drug dissolution in different oral pharmaceutical tablets

Background free CARS imaging by phase sensitive heterodyne CARS

Evolution Strategies for Laser Pulse Compression

Controlling the efficiency of an artificial light-harvesting complex

Application of spectral phase shaping to high resolution CARS spectroscopy

Characterizing the functional dynamics of zinc phthalocyanine from femtoseconds to nanoseconds

Carrier multiplication and its reduction by photodoping in colloidal InAs quantum dots

Ultrafast energy transfer dynamics of a bioinspired dyad molecule

Low-noise rotating sample holder for ultrafast transient spectroscopy at cryogenic temperatures

Carrier multiplication and its reduction by photodoping in colloidal InAs quantum dots

Pump-probe and pump-deplete-probe spectroscopies on carotenoids with N=9-15 conjugated bonds

Coherent control of photochemical and photobiological processes

Coherent control for spectroscopy and manipulation of biological dynamics

Energy flow in carotenoids, studied with pump-deplete-probe, multiphoton- and coherent control spectroscopy

Ultrafast carotenoid band shifts: Experiment and theory

In vitro self-assembly of the light harvesting pigment-protein LH2 revealed by ultrafast spectroscopy and electron microscopy

Pump-deplete-probe spectroscopy and the puzzle of carotenoid dark states

Multichannel carotenoid deactivation in photosynthetic light harvesting as identified by an evolutionary target analysis

The carotenoid S-1 state in LH2 complexes from purple bacteria Rhodobacter sphaeroides and Rhodopseudomonas acidophila: S-1 energies, dynamics, and carotenoid radical formation

Quantum control of energy flow in light harvesting

Dynamics of energy transfer from lycopene to bacteriochlorophyll in genetically-modified LH2 complexes of Rhodobacter sphaeroides

Obtaining structural information in self-assembling protein-surfactant systems by ultra-fast spectroscopy

Microscopic theory of exciton annihilation: Application to the LH2 antenna system

Exciton delocalization probed by excitation annihilation in the light-harvesting antenna LH2

Near-infrared time-resolved study of the S-1 state dynamics of the carotenoid spheroidene

B800 -> B850 energy transfer mechanism in bacterial LH2 complexes investigated by B800 pigment exchange

Exciton relaxation and polaron formation in LH2 at low temperature

Direct observation of the (forbidden) S-1 state in carotenoids

Ultrafast carotenoid band shifts probe structure and dynamics in photosynthetic antenna complexes

Femtosecond activation of reactions and the concept of nonergodic molecules

Temperature dependence of excitation transfer in LH2 of Rhodobacter sphaeroides

Retro-Diels-Alder femtosecond reaction dynamics

Femtosecond real-time probing of reactions .18. Experimental and theoretical mapping of trajectories and potentials in the NaI dissociation reaction

THE VALIDITY OF THE DIRADICAL HYPOTHESIS - DIRECT FEMTOSECOND STUDIES OF THE TRANSITION-STATE STRUCTURES

FEMTOSECOND CONTROL OF AN ELEMENTARY UNIMOLECULAR REACTION FROM THE TRANSITION-STATE REGION

FEMTOSECOND REAL-TIME PROBING OF REACTIONS .16. DISSOCIATION WITH INTENSE PULSES

FEMTOSECOND REAL-TIME PROBING OF REACTIONS .11. THE ELEMENTARY OCLO FRAGMENTATION

FEMTOSECOND REAL-TIME PROBING OF REACTIONS .9. HYDROGEN-ATOM TRANSFER

FEMTOSECOND LASER CONTROL OF A CHEMICAL-REACTION

DIRECT FEMTOSECOND MAPPING OF TRAJECTORIES IN A CHEMICAL-REACTION

Background free CARS imaging by local phase detection

Proc. SPIE, Vol. 7183, 718310; DOI:10.1117/12.807714

Femtosecond spectral phase shaping for CARS spectroscopy and imaging

Ultrafast Phenomena XVI