Organisation profile


Our nano-optics research focuses on optical approaches for sensing and actuation on the nano-scale. The devices are made in a polymer-based platform to facilitate their integration with our nanofluidic applications.

Dye-doped polymer photonic crystal lasers enable high resolution sensing of biological and other organic compounds via refractive-index-based detection.

Plasmonic V-grooves offer sub-wavelength confinement of light that is interesting for photonic circuit miniaturization and lab-on-a-chip applications.

Reconfigurable photonic crystals are light-diffractive elements that can be dynamically tuned in real-time for the purposes of redirecting light in order to adjust room brightness and lighting quality.

Random lasers have fascinating emission properties that may find applications for inexpensive remote sensing, vehicle identification and street lighting.


Nanofluidic devices, fabricated by direct nanoimprint or reactive-ion etching, are used as a platform for analysis of single DNA molecules in solution. In nanoconfinement, DNA molecules will unwind and stretch such that their inherent information is more readily accessible. For the experiments, the DNA molecules are stained and visualized by fluorescence microscopy. We use these techniques to develop a next generation of DNA sequencers based on single molecules. In this path, we study devices and protocols to manipulate and sort single DNA molecules, and investigate the potential of nanoplasmonic resonators for sensing. Light-induced local heating of the nanofluidic devices is used for moving, exciting or trapping individual molecules, or even their parts.


Our nano-optics and nanofluidics research is supported by technology development in nanofabrication based on electron beam and nanoimprint lithography (NIL) in the DANCHIP clean room at DTU. Our research in nanofabrication is focused on up-scalablability of devices for large-scale production.

Select materials, such as sol-gels and organically modified ceramics (ORMOCER™), are used to create devices by adding functionality via nanostructuring thin-films using nanoimprint lithography. For some applications we also modify the thin-film materials by introducing organic dyes to provide optical gain and energy conversion (LILH), or nanocrystals to achieve nanoporousity. Examples include nanoimprinted plastic photonic crystal dye microlasers, <all-silica nanofluidic devices fabricated by direct nanoimprint in sol-gel, plasmonic V-groove and metamaterial devices

Part of our research is targeted toward developing NIL for the nanostructuring of non-planar and free-form surfaces. This research line aims to extend the lateral resolution of  injection-molding plastic production technology (NanoPlast) from 50 µm to 100 nm.


Contact information

Ørsteds Plads
345 Ø
Kgs. Lyngby
  • Phone: (+45) 4525 5700
  • Fax: (+45) 4588 7762
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  • Microelectronic Engineering

    ISSNs: 0167-9317, 01679317

    ISSNs (Electronic): 1873-5568

    Elsevier BV, Netherlands

    BFI (2015): BFI-level 2, ISI indexed (2013): ISI indexed yes

    Central database


  • Optics Express

    ISSNs: 1094-4087, 10944087

    Optical Society of America, United States

    BFI (2015): BFI-level 2, ISI indexed (2013): ISI indexed yes

    Central database


  • Applied Physics Letters

    ISSNs: 0003-6951, 00036951

    ISSNs (Electronic): 1077-3118

    American Institute of Physics, United States

    BFI (2015): BFI-level 2, ISI indexed (2013): ISI indexed yes

    Central database


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