About Us
NLIR
NLIR is spin-off from the Department of Photonics Engineering at the Technical University of Denmark (DTU Fotonik) and is based on the novel patented upconversion technology invented by its founders at DTU Fotonik.
The core of the upconversion technology is a non-linear crystal that converts mid-infrared light to near-visible light. This enables the use of fast and efficient Silicon-based sensors for the detection of MIR light. Our non-linear mid-infrared sensors represent a revolutionary new measurement paradigm (Resources).
Our company is named Non-Linear InfraRed sensors (NLIR) to highlight our spectrometer products’ technological difference from today’s leading MIR spectrometry method of Fourier-Transform InfraRed spectroscopy (FTIR).
Our mission is to put forward innovative optical sensing solutions and help other industries overcome their challenges and discover the future.
NLIR
NLIR is spin-off from the Department of Photonics Engineering at the Technical University of Denmark (DTU Fotonik) and is based on the novel patented upconversion technology invented by its founders at DTU Fotonik.
The core of the upconversion technology is a non-linear crystal that converts mid-infrared light to near-visible light. This enables the use of fast and efficient Silicon-based sensors for the detection of MIR light. Our non-linear mid-infrared sensors represent a revolutionary new measurement paradigm (Resources).
Our company is named Non-Linear InfraRed sensors (NLIR) to highlight our spectrometer products’ technological difference from today’s leading MIR spectrometry method of Fourier-Transform InfraRed spectroscopy (FTIR).
Our mission is to put forward innovative optical sensing solutions and help other industries overcome their challenges and discover the future.
Our Team

Peter Tøttrup
CEO

Tom Olesen
CTO

Martin Bech, BSc
Mechanical Engineer

Ricard Pedersen, MSc
Electronical Engineer

Lasse Høgstedt, PhD
Optical Engineer

Søren M. M. Friis, PhD
Optical Engineer