Idea selected by the Microtech Booster (5th loop): GeSn Photodetectors on Si Substrate for Gas Detection

This new project selected by the Microtech Booster ( is focused on sensitivity tests of an innovative, low cost SWIR photodetector for gas sensing applications. The feasibility study will be performed with the contribution of high-class entities such as AXETRIS (spectrometry), VERTILAS (laser) and EPFL (photodetector).

A broadband light source, a multipath gas chamber with […]

2023-06-06T17:06:14+02:00May 25th, 2023|

Innovation Cheque

The Swiss Innovation Council “Innosuisse” has approved our funding application entitled “MoCA”. This preliminary study will be performed with HE-Arc to demonstrate the feasibility of an effective photon detection at short-wave
infrared (SWIR) wavelengths for smartphones and consumer (AR/VR) applications. The device set-up basically comprises a germanium-tin (GeSn) single-photon avalanche diode (SPAD) array as receiver and […]

2023-07-31T14:58:55+02:00May 5th, 2023|

Microtech Booster (3rd loop): What’s Next?

The results of the feasibility completed at EPFL confirm that the annealing of a thin layer of germanium on silicon makes it possible to obtain an optimal crystalline quality with a flash lamp, by means of the repetition of short pulses, without the diffusion of heat being sufficient to damage the electronic circuits of the […]

2023-01-06T18:09:24+01:00December 7th, 2022|

Idea 3/3 selected by the Microtech Booster (4th loop): New Detection Technology for Airport Closed Luggage Inspection

Baggage inspection at the airport can be dangerous and time-consuming. The state of the art – currently under assessment – is to use fully automated alarm resolution based on barrier analysis technology to detect explosives and other illicit compounds, such as drugs. The X-ray equipment used comprises a detector, which is particularly expensive and whose detection surface […]

2023-06-06T16:42:28+02:00November 24th, 2022|

Idea 2/3 selected by the Microtech Booster (4th loop): New sensing technology of delamination in composite aircraft parts

For the detection and characterization of delaminations, a non-destructive testing system for composite (CFRP) aircraft structures can use X-rays. However, this technique is slow and expensive. It is therefore only associated with the use of other means – for example ultrasound and infrared – that it can prove to be effective. The basic project idea consists of […]

2022-12-30T14:38:45+01:00November 24th, 2022|

Idea 1/3 selected by the Microtech Booster (4th loop): Solid state flash LiDAR for mid-range 3D detection

One of the goals of IRIS is to develop long-range LiDARs for autonomous vehicles. The core and disruptive technology of the company is the conception of germanium-tin (GeSn) single photon avalanche diodes (SPADs) for short-wavelength infrared (SWIR) sensing. The advantages of the GeSn lie in its high quantum efficiency at wavelengths between 1.5 and 1.6 […]

2022-12-30T14:35:22+01:00November 24th, 2022|

New Ideas selected by the Microtech Booster (4th loop)

This is another success! Among seven selected ideas, three come from IRIS. The first concerns a flash LiDAR system operating in the SWIR, the second, a new technology for the detection of delaminations in composite aircraft parts and the third, the inspection of closed luggage for the airport. These feasibility studies will be executed in […]

2022-12-30T14:12:40+01:00November 24th, 2022|

Idea selected by the Microtech Booster (3rd loop)

At the end of the 3rd loop of the Microtech Booster (, the idea presented by IRIS was selected. The ultimate ambition of the project is to produce a system for the simultaneous detection of X-rays and short-wavelength infrared (SWIR), mainly for improving the inspection of composite aircraft structures or controlling the quality in […]

2023-01-06T21:53:11+01:00May 24th, 2022|

First Production of Photodiodes

First germanium-tin (GeSn) photodiodes operating in the short-wave infrared (SWIR) – in a row of 4 pixels, each comprising 4 SPADs – were fabricated at EPFL. They are currently being characterized at The Quantum Technology Group, Geneva University.

2021-08-07T14:22:10+02:00May 30th, 2021|

Detector Packaging Ready

The HE-Arc Engineering team – with support of our friends at APTASIC – produced the first packaging of our detector. For testing purposes, it contains a high performance Peltier module.

2021-07-31T11:16:48+02:00November 30th, 2020|
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