Working Group 3 – Improving Spectroscopic Techniques

WG3 Leader:

Florian Kulzer (France)

WG3 Co-Leaders:

Antonio Cricenti (Italy)

Dai Zhang (Germany)

To improve spectroscopic techniques, issues of reliability, reproducibility, large area applications, and data analysis will be addressed. As one example, innovative nanoprobes for tip-enhanced Raman spectroscopy will be fabricated and evaluated. Vendors of spectrographs, microscopes, and optical components will be invited to collaborate. Personal contacts to fitting industrial partners already exist, suitable companies (see part II - A) will be approached.

As one of the objectives and deliverables of the COST Action, a list of current issues for improving spectroscopic techniques was drafted based on a round-table discussion including members from academia and industry. The following main themes emerged from this exchange of ideas: WG3-Instrumentation-and-Instrumentation-Issues.pdf

Techniques

  • UV/VIS spectroscopy
  • confocal, wide-field, and dark-field microscopy
  • interferometric techniques, holography, polarization
  • scanning tunneling microscopy
  • near-field microscopy, tip-enhanced microscopy, functionalized probes, photoconductive SPM
  • electron microscopy, electron energy-loss spectroscopy, photoemission electron microscopy
  • time-resolved microscopy, punp-probe spectroscopy, coherent control
  • (temperature controllable) atomic force microscopy
  • nonlinear optical microscopy (second harmonic, sum-frequency, third harmonic, multiphoton)
  • correlation spectroscopy
  • mirco-ellipsometry
  • optical traps, tweezers, manipulation, biosensing
  • super-resolution (localization) microscopy
  • tailoring focal field distributions
  • thermo- and photo-chemical imaging

Interaction Mechanisms

  • absorption (photothermal detection), reflection, extinction, scattering, fluorescence
  • tip- and surface-enhanced Raman scattering, low-frequency Raman scattering
  • electroluminescence and electro-optics, magneto-optics, magneto-electrical interaction
  • linear and nonlinear optics and plasmonics
  • electron scattering and diffraction
  • thermochromism

Systems of Interest

  • metal (Au, Ag, Cu, Al) nanoparticles (clusters, spheres, rods, disks, rings, cones, bumps, stars), core-shell particles, alloys, films
  • organic chromophores (mono-, oligo-, polymers, aggregates, crystals)
  • natural light-harvesting complexes, photosynthetic proteins, autofluorescent proteins
  • organometallic complexes
  • semiconductor quantum dots, wells, wires, pillars, metal chalcogenides
  • DNA (templates), proteins, lipids, membranes, cells, biomimetic structures
  • carbon allotropes
  • surfaces and thin films, layers, sub-wavelength apertures, arrays, resonators, gratings, fibers, waveguides
  • hybrid nanostructures
  • magnetic nanostructures
  • nanochannels, microfluidics, sorting molecules in complex media
  • amorphous and crystalline nano-objects
  • photonic crystals and metamaterials