Explore a world of possibilities with unprecedented sensitivity using our stand-alone room temperature infrared and terahertz detectors.

Invisible-Light Labs enables you to achieve new paradigms by allowing you to detect infrared and terahertz radiation at room temperature with our ultra sensitive nanomechanical resonators.

Applications include chemical analysis of nanoparticles and ultrafine aerosols, thin film analysis, and chemical characterization of non-volatile analytes.


The IR to THz region of the electromagnetic spectrum hosts a wealth of intriguing interactions between radiation and matter. The ability to obtain IR/THz molecular fingerprints with high sensitivity at room temperature is of particular interest for a wide range of applications such as pharmaceuticals, fundamental research, food & agriculture, environmental monitoring, security and materials.





What if you could speed up the analysis times of biomolecules, monitor processes online, improve quality control, identify pharmaceutical  counterfeits, characterize polymorphism and more?


What if you could ensure food safety and minimize waste by monitoring gas by-products of spoilage?


What if you could achieve ultra-sensitive MIR to FIR detection without cryogenic cooling?


What if you could detect and characterize low concentrations of environmental pollutants directly at the source?


Bulk chemical characterization of nanopharmaceuticals without the time-consuming scanning.


Characterization of additives and nanoparticles.




Ultra-sensitive MIR to FIR detection without cryogenic cooling.


Bulk chemical characterization of ultrafine aerosols, nanoplastics, and other nanopollutants.




The measurement principle of EMILIETM is based on the photothermal heating of the sample, causing a measurable frequency detuning of the EMILIETM resonator chip. The frequency detuning, which is measured by the frequency tracking electronics PHILLTM, is a direct measure for the absorbed light power. With the photothermal sensing principle, EMILIETM has a limit of detection in the lower picogram range.
FTIR Spectrometer integration

Our EMILIETM detector is compatible with FTIR spectrometry instrumentation.

Broad spectral range

EMILIETM allows for the detection
of near-IR to far-IR (THz) radiation with high sensitivity.

Nanomechanical detector technology

We use an ultrasensitive nanomechanical thermometer to detect infrared and terahertz radiation. Click here to read our PNAS paper where we demonstrated a sensitivity of a few femtowatt per square root hertz. Click here to read about how our new technology expands the IR/THz spectro-scopy toolkit and even allows the drumming up of single-molecule beats.

The EMILIETM detector can be added to the extra port or sample compartment of your spectrometer
Comparison of the different detector technologies available on the market
CoolingRange Range





Photonic crystals MIR (single wavelength)3 to 5 µm2.0E-15 
InGaAs Photodiodes MIR3 to 5 µm5.0E-151.0E+13
4,2K TES Bolometer Liquid HeliumFIR3 to 5 µm  
Cooled MCTLiquid NitrogenMIR3 to 5 µm 2.0E+11
Cooled MCTLiquid NitrogenMIR3 to 5 µm1.1E-121.0E+10
195K TE Cooled MCT MIR3 to 5 µm1.8E-111.0E+10

InAsSb photovoltaic


Liquid NitrogenMIR (single wavelength)3 to 5 µm 8.5E+10

InAsSb photovoltaic


 Vis to FIR3 to 5 µm1.4E-105.0E+09
Uncooled MCT . UV to FIR3 to 5 µm3.0E-102.0E+09
Golay cell THz 1.0E-107.0E+09
DLaTGS Pyroelectric detector THz 1.0E-091.5E+09
Shottky diode MIR3 to 5 µm 1.0E+08
Semiconductor cameras     

NEP: Noise Equivalent Power
D*: Detectivity

About the company

Invisible Light Labs GmbH was founded 2019 by Dr. Josiane Lafleur and Univ.-Prof. Dr. Silvan Schmid. The company is currently part of the TU Wien i2c incubator. At Invisible-Light Labs, we strive to make a positive impact on the world we live in by enabling groundbreaking scientific discoveries with our highly sensitive IR sensors. We use the synergy of our multidisciplinary team and apply the mechanics point of view to the optics world to create radically new room temperature IR sensors based on innovative NEMS technology. We acknowledge funding by the Austria Wirtschaftsservice (AWS), the European Research Council under the European Union’s Horizon 2020 research and innovation programme (ERC PoC grant  No. 875518 ) and the IPA4SME program. Invisible-Light Labs holds a Seal of Excellence from the European Commission for its NEMS Detector project and is the recipient of an EIC Transition Grant (Project NEMILIES grant No. 101058011).



We have an outstanding international and multi-disciplinary team. We strongly believe that the synergistic combination of our varied backgrounds in an open-minded setting is the best  way to come up with innovative ideas to the challenges we face.


Dr. Josiane P. Lafleur

Head Scientist and Managing Director

Josiane has a doctoral degree in Analytical Chemistry (McGill University, Canada). Previously, she was Assistant Professor at the Department of Pharmacy at the University of Copenhagen (Denmark).

“After many years doing research in academia, I decided to finally take the plunge and bring an innovation from the laboratory to the market. I think I can have a positive impact on the world we live in by helping scientists to make new ground-breaking discoveries, improving food safety, environmental monitoring and more.”

Univ.-Prof. Dr. Silvan Schmid


Silvan has a doctoral degree in Nanomechanics (ETH Zurich).
He is now professor at TU Wien and head of the Research Unit of Micro- and Nanosensors at the Institute of Sensors and Actuator Systems.

“I believe a scientist’s career is defined by their scientific discoveries and their positive impact in the world. We scientists owe it to society to make our discoveries available to everyone. Transforming a research result into a product and making it available to expert users leads to a direct improvement of people’s lives.”

Niklas Luhmann

Niklas Luhmann, M.Sc.

Head of Technical Development

Niklas has a Master degree in Physics from the University of Konstanz (Germany) during which he worked on the very first detector prototypes. He is currently completing his Ph.D. in Nanomechanical Sensing at TU Wien (Austria).

“I always wanted to be a scientist, which is why I studied physics. I have a passion for nanotechnology and its application to sensor systems. I am fascinated by how one can perceive nature with such extraordinary precision.” 

Hajrudin Bešić, M.Sc.

Head of Electronics & Software Development

Hajrudin has a Master degree in Biomedical/Medical Engineering from and is currently completing his Ph.D in Electrical and Electronics Engineering at TU Wien (Austria). 

“Developing new devices and technology on a daily basis is what excites me. I want to make major contributions to society and push the limits of existing technology.”

Tatjana Penn, M.Eng.

Development Engineer

Tatjana holds a Bachelor of Microsystems Technology and a Master of Electrical and Microsystems Engineering from OTH Regensburg (Germany) .

“I have always wanted to be an engineer and work on a new and revolutionizing project. Being part of this team is an engineer’s dream come true!”

Veljko Vukićević, M.Sc.

Electronics & Software Development Engineer

Veljko has a bachelors degree and Master degree in Embedded Systems from TU Wien (Austria). He’s an expert in electronics & software development.

“Since I was a kid I wanted to make a world a better place. Together with a team of amazing people I am finally able to make my childhood dreams come true!”

Jelena Timarac Popović, M.Sc.

Development Engineer

Jelena has a Master degree in Physics from the University of Novi Sad (Serbia) and is currently working on her Ph.D in Nanomechanical Sensing at TU Wien (Austria).


Haris Bešić, B.Sc.

Business Development

Haris has a Bachelor degree in Mechanical Engineering from the TU Wien (Austria) and has worked as a mechanical development engineer before deciding to follow his passion in the business field.

“I am particularly excited about the potential for Invisible-Light Labs’s ultra sensitive nanomechanical resonators to revolutionize the field of radiation detection. The ability to detect infrared and terahertz radiation at room temperature has numerous potential applications, and I am eager to be a part of the team that brings this technology to market.”

Johannes Hiesberger

Development Engineer

Johannes is currently completing is Masters Degree in nanomechanical sensing at TU Wien (Austria) during which he worked on our detector prototypes. He joins the company as a development engineer to further their development.

“Since I was young I never wanted to do rudimentary work. I wanted to apply myself in creative ways and be challenged. I am glad to be part of a team that allows me to do this.”

Duygu Özer Geniş, M.Sc.

R&D Scientist, Data Analyst

Duygu has masters degree in Food Engineering from Hacettepe University (TR. She has extensive experience in chemometrics, calibration models development, testing, and validation.

“Since I was a kid I have loved maths and numbers. The combination of big numbers (data) and nanotechnology excite me. The most exciting is the usage of this combination for a better world especially better food safety with these scientific people. I am thrilled to be a part of this team.”
Your job

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We offer

Wir bieten dir einen Platz, in dem du deine Skills erweitern und neue erlernen kannst. Nach und nach bekommst du mehr Verantwortung, somit wirst du nicht alleine gelassen oder ins kalte Wasser geworfen.Du arbeitest in einem jungen und dynamischen Team im Guid.New-Tower mit flachen Hierarchien und kurzen Entscheidungswegen.Für diese Stelle vorgesehen ist ein Bruttojahresgehalt ab € 50.000,- auf Vollzeitbasis; Überzahlung nach Erfahrung und Qualifikation.


Invisible-Light Labs erhält EU-Förderung von 2,2 Millionen Euro

Invisible-Light Labs is granted 2.2M Euro in the first ever EIC-Transition call. Click here to learn more about project NEMILIES!

– Trending Topics, 19.01.2022  

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Invisible-Light Labs: Dieses Spin-off will mit Infrarotwellen die Umwelt scannen

Mit Strahlung zu arbeiten, die man nicht sieht, aber durchaus spüren kann, das ist das Gebiet des neuen Wiener Startups Invisible-Light Labs… 

– Trending Topics, 12.09.2019  

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Invisible-Light Labs featured in Forbes’ list of spin-offs to watch in 2021!

Invisible-Light Labs stands proudly at #20 in this year’s list of 30 spin-offs to watch in the DACH region. 

– Forbes DACH, 24.02.2021  

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Wie Hightech die Erde entgiften kann

Schadstoffe im Boden gelangen zurück zum Menschen. Wie Technologie entgegenwirkt…

– futurezone, 09.12.2019 

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scientific comments & blog posts

A Rebirth for IR Spectroscopy?

Derek Lowe 
In The Pipeline, 10 March, 2017 

Read more

Drumming up single-molecule beats

Erik H. Horak and Randall H. Goldsmith 
PNAS, 30 October, 2018

Read more



our papers

© 2020 Invisible-Light Labs GmbH.
All right reserved.
Invisible-Light Labs GmbH
Taubstummengasse 11, 1040 Vienna, Austria
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