Optical Products

For more than 40 years, Sil'tronix Silicon Technologies produces its own monocrystalline silicon ingot in order to provide the highest quality for photonic applications.

With the aim to manufacture the most valuable customized silicon crystals for synchrotron beamlines, neutron sources, infrared, X-ray applications, etc... we manage the whole manufacturing process by the achievement of the entirely production within our own factory. The fabrication is totaly made internally from the pulling process to get the ingot to the final step which is the cleaning process. This production flow allows to maintain a reliable and qualitative consistency. It is also the best way to ensure the flexibility requested to answer to tight requests.

The major source of motivation for our company is to provide the most suitable silicon bloc regarding the customer requirement. It is the reason we manufacture the products on demand regarding individual specification such as schemes.


Throughout the years, we accumulated experiences to specialize in the crystallographic sciences and especially within the diffraction of light by producing a large range of monocrystalline silicon crystals.

To produce a qualitative crystallographic products, pure silicon raw material is used (9N).

single SILICON crystals for Neutron Sources


Define and find your own silicon crystals dedicated to neutron reflectivity.

Sil'tronix ST is the European leader of the Silicon Crystal Blocks by providing 90% of the research teams working in Europe on Neutron Backscattering Spectroscopy

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ATR Silicon crystals and prisms


Sil’tronix ST manufactures on demand silicon ATR Crystals for FTIR-ATR spectroscopy and neutron experiments.

Read more about ATR silicon crystal

X-Ray Crystals


Over the past 10 years we produced hundreds of silicon and germanium Crystals (X-ray monochromators and mirrors aimed to condition primary X-ray beams or to analyze diffracted X-ray beams in multi-crystal diffraction arrangements).

Our silicon crystals include: flat symmetrical of asymmetrical, channel-cut for multiple reflections, symmetrical or asymmetrical.

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zero diffraction plate for XRD

Silicon sample Holder or also named Zero Background Holder for X-Ray Diffraction (XRD) analysis.


Our products are made of semiconductor grade silicon single crystals. They have been designed to be ideal for Rietveld analysis as they present practically no interference lines. The XRD pattern obtained, by using our Sil’tronix crystals as background plate, is very “clean”, so that even at very low-intensity, samples’ Bragg reflections can be easily detected.

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Silicon Sputtering Targets


Sil'tronix ST produces a comprehensive offering of monocrystalline silicon sputtering targets.

Our products can be manufactured according to your specifications.

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Optical windows

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Optical grade Silicon is normally specified with a resistivity of 5 to 40 ohm-cm for best transmission about 10 μm. Silicon windows has a further pass band 30 to 100 microns which is effective only in very high resistivity material.  

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Porous Silicon (in collaboration with Silimixt)

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A porous silicon layer results from an electrochemical etching of a crystalline silicon wafer in a hydrofluoric acid based electrolyte. Various morphologies can be obtained depending on the type, the doping level, the crystalline orientation of the Si wafer and also on the electrolyte composition.

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Aluminum nitride (AlN) is a promising material for many future applications, including blue-ultraviolet LEDs as well as surface acoustic wave (SAW) devices. SAW devices can act as resonators or filters  integrated circuits. They can also be used in wireless sensors operating in harsh environment for instance. As such, they play an essential role in applications ranging from professional radar to mobile wireless systems.

Read more about AlN on sapphire





An important fraction of the matter in the universe is very cold, and emits only far infrared, microwave or millimetre wave radiation. To detect cold astronomical objects, a radiotelescope’s detection instrument must be cooled to even lower temperatures, to avoid the thermal noise of the detector. NIKA 2, the second generation Neel-IRAM-KID-Array, is a dual-band millimetre-wave camera operating simultaneously at 150 and 260 GHz. The instrument is based on large arrays of superconducting Kinetic Inductance Detectors (KIDs) operated at temperature 0.1 Kelvin. NIKA 2 was built by an international consortium, led by the Institut NÉEL. Successful installation took place in October 2015 at the 30 m diameter telescope of the IRAM (Institut de Radioastronomie Millimétique) on Pico Veleta at altitude 2850 m in the Sierra Nevada, Spain.

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Nikola Tesla, one of the most influential inventors of the 20th century, spent his life working with electricity and dreamed of the possibility of wireless communication. Although he died about 30 years before the first call was made on a wireless cell phone, his work is invaluable to the technology available today. What could be a more fitting tribute to this man than a statue in his likeness that is equipped with free Wifi?

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