What are Terahertz waves?

What are Terahertz waves?

Terahertz waves, also called submillimeter waves, T-Rays, T-Waves are electromagnetic waves in the frequency band between 300 GHz and 10 THz (1THz=10^12 Hz).  Wavelengths of radiation in the terahertz band range from 30 µm to 1 mm. That’s why they are also known as submillimeter waves. Terahertz radiation lies between microwaves and infrared light regions of the spectrum and it shares some properties with each of these. Like infrared light, terahertz waves can travel in a direct path from the source to the receiver, and manipulated with optical elements. On the other side, like microwave radiation, they are non-ionizing (they don’t carry enough photon energy to ionize (remove an electron) atoms or molecules) and can penetrate a wide variety of non-conducting materials. Among them there are clothes, skin, paper, cardboard, wood, plastics, ceramics etc.  On the other hand, Terahertz waves cannot penetrate metal, water and liquids. These properties are making the T-Waves attractive candidates for the brand-new applications in a various fields (imaging, non-destructive testing, healthcare, security and defense…). For example, due to a non-ionizing property, Terahertz waves can penetrate some distance inside the body tissue, and as they are inoffensive for living organisms, they can be a good replacement of the X-Ray imaging. Still, we don’t see the Terahertz waves; they are naturally occurring and surrounding us in everyday life. Yet this region of spectrum remains the least explored mainly due to the technical difficulties. But recently, thanks to advances in a technology, new systems were developed to both generate and measure/detect those waves. These decisive advances are promising for a number of applications. Some interesting physical properties...

Interview with Peter Ertl, Head of the Photo Studio at the Albertina Art Museum in Vienna.

Please introduce yourself and tell us about your work at the Albertina photo studio. I have worked as a trained photographer at the Albertina for more than 30 years and I am now head of the photo studio. At first I worked with black and white photography; then we moved on to using scan backs. Now we work exclusively with the latest digital technology, including a high-resolution camera by PhaseOne and the SupraScan high-performance scanner (SupraScan Quartz A1 – Product) by i2s. I am assisted in the studio by my colleague Ms Pohankova, who is also a trained photographer. Our work has two main focus areas. We are currently in the process of digitalising our own stocks for long-term archiving, online presentation (http://sammlungenonline.albertina.at) and further processing, such as e.g. exhibition catalogues. And we also create high-quality scans of our stocks, which can be ordered by external customers for a fee. We work with a wide variety of objects. The Albertina owns books, prints and paintings of all sizes. However, we mainly scan prints and newspapers up to a size of DIN A1. Almost all of the objects are unique and highly valuable. We therefore have to proceed very carefully during digitalisation. How did you become interested in “book scanners”, given that you had previously worked very successfully with camera systems? For a number of reasons, we began to work more intensively on book scanning. At the Albertina, we are unable to suspend the camera directly above the material for safety reasons. As a result, we have to lean the material against a wall. Yet we still have to align...
Manuel Valls visits i2S

Manuel Valls visits i2S

Yesterday, on Thursday October 27, things were buzzing at i2S. We had the great privilege of meeting the Prime Minister, Manuel Valls, as part of the “Factory of the Future” program launched by the New Aquitaine region.

Back to the future… On Seine

Back to the future… On Seine

For 7 years, the Futur en Seine festival allows Ile companies and from all over France to present their innovations, during the first two days, to the general public and during the last two days to professional ones.

i2S innovation confirms its ambitions with the launch of a new Common Laboratory PLIIS

i2S innovation confirms its ambitions with the launch of a new Common Laboratory PLIIS

Within the framework of the technological development of its products dedicated to imaging,i2S is constantly looking for innovation in both areas of lighting,optics,image processing and embedded electronics. In recent years,i2S has developed numerous research agreements with academic partners to provide products and the most innovative solutions to our customers.

Running at i2S

Running at i2S

Everyone knows the natural benefits of running. Running helps release stress, develop endurance, and is a fountain of youth. Beneficial for the heart, it leads to weight loss, and allows us to develop and tone muscles. This sport also gives us the urge to stop alcohol and tobacco consumption. It favors, amongst other things, the will to push ourselves further and allows for the discovery of unexpected places.

The resellers sales meeting

The resellers sales meeting

Every year, i2S organises a ‘Sales Meeting’ with international distributors in order to exchange views on the subject of plans within the digitalisation market and to present their digitalisation solutions, image processing and cost sharing. From the 5th to the 7th of April 2016, this meeting took place at i2S’ headquarters, welcoming guests of 19 nationalities, from Africa, Asia, America and Europe- a great occasion for the distributors.

i2S certified ISO 13485

i2S certified ISO 13485

The standard ISO 13485 is an international standard dedicated to the conception, fabrication and marketing of medical devices to ensure its quality and compliance to regulation. i2S provides, for many years now, a variety of vision devices for the medical domain. After gaining success and experience, i2S strongly invested in quality process in order to serve its clients better.

10 new eScan Open Systems were sold in China.

10 new eScan Open Systems were sold in China.

After his last trip to China, Alex Besson, our globetrotter covering the Asian market, sold ten “eScan open system” including two to the prestigious University of Beijing, the other eight being in the hands of our Chinese partner, responsible for the distribution of i2S products on this market.

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