Cover Picture: Optik & Photonik 1/2013

The polarization analyzer SK010PA from Schäfter+Kirchhoff is one of the most compact measurement devices of its class. Timeconsuming alignment tasks are completed efficiently for free beam and fiber optic applications. The USB device is available in different versions to cover the wavelength range 350 — 1600 nm.

Fresh Design, More Features

• Carmen Teutsch
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Contents: Optik & Photonik 1/2013

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News: Optik & Photonik 1/2013

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Products: Optik & Photonik 1/2013

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Improved Photovoltaic Performance

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Accurate Water Vapour Measurements

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Light from Silicon Nanocrystal LEDs

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New Imaging Device that is Flexible, Flat, and Transparent

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A More Powerful “T‐Cognition” Mail Scanner

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Mass Production on a DVD

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A Honeycomb Pattern of Triangels

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A Splash with the Flash

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Engineering “Ghost” Objects

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Like a Jigsaw Puzzle

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Berlin WideBaSe: Gapless Networking

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Putting Research into Practice: Biophotonic Innovations on Display at LASER 2013

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Crossing the Limit Towards Deep UV

Confocal microscopy allows for various fluorescence applications that have found their way into modern biology and medicine leading to new insights into morphology, physiology as well as pathological alterations. Common microscopical analyses include labeling of the sample with extrinsic fluorophores because DNA, saccharides, lipids, membranes, and most cellular structures are non‐fluorescent.

• Sandra Orthaus, Marcelle König, Thomas Schönau, Volker Buschmann, Sebastian Tannert, Christian Lauritsen, Felix Koberling, Uwe Ortmann, Rainer Erdmann
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One Frame, Endless Possibilities

To change the constraints of the traditional microscope system, Olympus has developed an new open source microscopy concept, based on the inverted IX3 microscope frame series. Designed around an accessible infinite light path concept, optical modules can be easily exchanged, moulding the microscope to the diverse requirements of the user. The series suits anything from routine observation to advanced imaging techniques in...

• Wolfgang Hempell, Simon Reiss
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Clinical Adjusted Photodynamic Therapy

Lasers are currently used in diagnostics, for example in metabolic monitoring (fluorescence diagnosis, laser Doppler) and optical imaging (laser scanning microscopy, optical coherence tomography, infrared diaphanoscopy). One main research focus remains therapeutic applications — on one hand using lasers as a surgical instrument, on the other as a central, independent therapy method. Historically, the traditional indication...

• Maria Ziolkowska, Carsten M. Carsten, Ute Mueller, Peter Urban, H.‐Peter Berlien
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One Light Source — All Colors

A single source emitting single‐frequency light with tunable color and without the need of changing toxic chemicals, as it is the case for dye lasers, is desired by many scientists. The Department of Microsystems Engineering IMTEK at the University of Freiburg together with the Fraunhofer Institute for Physical Measurement Techniques IPM now extend the tuning range of continuous‐wave optical parametric oscillators into the...

• Rosita Sowade, Jens Kießling, Ingo Breunig
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Designed to Disperse

Optical emission spectroscopy is a widely recognised and well‐established tool in a number of different branches of science. In this contribution, simple modelling of imaging prism and grating spectrometers using optical design software as well as a comparison of both principles are presented. Further, basic considerations on the design of such spectrometers and a transfer lens for imaging a given light source onto the...

• Geoff Adams, Thomas Thöniß, Christoph Gerhard
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Polarization Analyzer for Fiber Optics and Free Beam Applications

The state of polarization plays an integral role in many optical measurement techniques. The defined adjustment and setting of the polarization as well as its precise measurement often is fundamental to further success. The polarization analyzer was developed for the precise coupling of linearly polarized light into polarization‐maintaining fibers as well as for the setting of a well‐defined state of polarization in free...

• Anja Krischke, Michael Schulz, Christian Knothe, Ulrich Oechsner
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At the Limits: How to Detect Relativistic Electrons?

Synchrotron radiation generated by a charged particle with relativistic speed deflected on circular paths is a well‐known physical phenomenon. However, in recent years this principle of radiation generation was further developed to generate picosecond pulses in the terahertz frequency range, thus closing a long‐lasting gap in brilliant pulsed terahertz sources. Recently, this radiation was detected in real‐time by...

• Petra Thoma, Vitali Judin
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Optics and Lenses — How to Find the Best Fit

How do you find the right lens for a particular task? What should you consider when selecting the correct connectors? In which way do focal length and f‐number of the lens influence your photographs? The following tutorial explains what you should take into account in terms of optics and lenses to avoid the agony of choice.

• Joachim Linkemann
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Events 2013

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Meetings: Optik & Photonik 1/2013

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Buyers' Guide

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