Danish Optical Society Our sponsors Our sponsors
Thu 19-02-2015 Provably secure and practical quantum key distribution over 307 km of optical fibre
Here, we present, for the first time, a compact and autonomous QKD system that is capable of distributing provably secure cryptographic keys over 307 km of optical fibre. This is achieved by using semiconductor single-photon detectors with record low background noise and a novel finite-key security analysis, which is efficient even for short key lengths. This demonstrates the feasibility of practical long-distance QKD based on standard fibre-optic telecom components.

Thu 19-02-2015 Nonlinear Optics: Principles and Applications
New book out by Karsten Rottwitt and Peter Tidemand-Lichtenberg explores the fundamental aspects of nonlinear optics.

As nonlinear optics further develops as a field of research in electromagnetic wave propagation, its state-of-the-art technologies will continue to strongly impact real-world applications in a variety of fields useful to the practicing scientist and engineer.

Wed 11-02-2015 The Challenge of Complexity
Please join us for the exciting talk by Peter Cochrane on Friday 20.02.2015 from 13.00 in 306/37 at DTU.

We have gathered a few details about the talk (and Peter).

Sat 31-01-2015 In Memoriam: Charles Hard Townes
The 1964 Nobel Prize inventor of the maser (microwave amplification by stimulated emission of radiation), Dr. Charles Hard Townes, died early on January 27 at age 99.

Read more at nobelprize.org or at photonics.com

Wed 28-01-2015 Imaging at the speed of light
The ability to record images with extreme temporal resolution enables a diverse range of applications, such as fluorescence lifetime imaging, timeof-flight depth imaging and characterisation of ultrafast processes. Recently, ultrafast imaging schemes have emerged, which require either long acquisition times or raster scanning and have a requirement for sufficient signal that can only be achieved by reflecting light off an object or diffused by a strongly scattering medium.

Here, a demonstration of the potential of single-photon detector arrays for visualisation and rapid characterisation of events evolving on picosecond time scales is presented. The single-photon sensitivity, temporal resolution and full-field imaging capability enables the observation of light-in-flight in air, as well as the measurement of laser-induced plasma formation and dynamics in its natural environment. The extreme sensitivity and short acquisition times pave the way for real-time imaging of ultrafast processes or visualisation and tracking of objects hidden from view.

Read the article and watch the video.

You can also read the article on ing.dk here.

Tue 27-01-2015 Northern Optics & Photonics 2015
Northern Optics & Photonics 2015 (NOP 2015) will be arranged on 2-4 June 2015 near the city of Imatra (but in Lappeenranta region) in South-Eastern Finland, a 2.5 hour train trip from Helsinki. The conference venue is the spa resort Holiday Club Saimaa by the beautiful lake Saimaa with attractive free-time activities.

The conference is organized by Photonics Finland in conjunction with the Institute of Photonics (UEF, Joensuu), Lappeenranta University of Technology (LUT, Lappeenranta) and sponsored by optics/photonics societies of Sweden, Denmark, Norway, and Baltic countries. Because of extensive growth of photonics industries in the Nordic and Baltic countries and the formation of dedicated industrial photonics clusters in many countries, NOP 2015 has a separate industrial program committee besides the academic one and contains parts devoted specially to optics and photonics industries. There will as well be an exhibition. The conference deals with all aspects of optics and photonics from basic research to manufacturing and applications. It contains plenary, invited, contributed, and poster presentations.

Read more at photonics.fi

Tue 27-01-2015 New Laser Could Significantly Improve Biomedical Imaging
Yale researchers have developed a new semiconductor laser that could advance imaging quality across a broad range of applications. Designed around chaotic cavity laser activity, the device eliminates image corruption. It provides the brightness of traditional lasers and the low image corruption of light-emitting diodes, which could enable next-generation microscopes, photolithography, and biomedical imaging.

Read more at meddeviceonline.com

Tue 27-01-2015 Sort fosfor er den nye konkurrent til grafen
Irsk forskningsgruppe har knækket problemet med at masseproducere tynde lag af sort fosfor. Materialet, der også kaldes fosforen, kan bruges til elektronik, sensorer og optiske komponenter.

Læs mere på ing.dk

Tue 27-01-2015 Controlling brain cells with light
EPFL scientists have used a cutting-edge method to stimulate neurons with light. They have successfully recorded synaptic transmission between neurons in a live animal for the first time.

Read more at epfl.ch

Tue 27-01-2015 Lysets maler havde blik for teknik og videnskab
En ny film om en af Englands største malere gennem tiderne har flere interessante bipersoner inden for teknik og naturvidenskab.

Læs mere på ing.dk


picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture
picture