Optik & Photonik 2015/3 June

Optik & Photonik June issue published

Cover Picture

Cover Picture: Optik & Photonik 3/2015

Fiber‐based technology enables a broad variety of powerful femtosecond laser sources and highly‐precise frequency combs. Toptica’s FemtoFiber lasers support sophisticated applications like nonlinear microscopy, multiphoton lithography, time‐domain terahertz or high‐resolution spectroscopy. (Source: Toptica)

Editorial

Europe Must Take the Industrial Leap Now

  • Wilhelm Kaenders
  • Page 1-1

Contents

News

Products

Research & Technology

Organizations & Initiatives

Interview

Causing a Q‐Motion

Optik & Photonik was given a behind the scenes insight in the developers wing of PI’s (Physik Instrumente) headquarters in Karlsruhe, south‐west Germany. PI is a global market and technology leader in the field of precision positioning technology and we had the opportunity to record a video interview with engineer Mark Freyer, Product Division Head for Piezoelectric Inertia Drives at PI.

  • Oliver Dreissigacker
  • Page 22-23

Measurement Technology

High‐precision Optical Position Measurement in Indoor Environments

Indoor localization is still a challenge today. Conventional methods based on satellite navigation, like GPS, can only be used outdoors. On the other hand, radio signal architectures, like WiFi or NFC, require high cost infrastructure to be installed inside the building. In collaboration with Ixellence GmbH, the research group for telematics of the University of Applied Science Wildau is developing a new inexpensive…

  • Ralf Vandenhouten, Ole Wendlandt
  • Page 24-27

Microscopy

Lasers for Optogenetics and Multimodal Microscopy

A new type of short‐pulse ultrafast laser sources provides extremely wide (680 – 1300 nm) wavelength tunability of the primary output as well as simultaneous high power (1.5 watts) output at 1040 nm. This combination makes lasers such as the Chameleon Discovery ideal for demanding multiphoton excitation applications in optogenetics, multimodal imaging, and other microscopy applications that need two independent wavelengths….

  • Marco Arrigoni
  • Page 28-31

Application Report

From a Microscope to a Nanoscope

In conventional confocal microscopy, the limit of the resolution is half of the wavelength of light. For blue light, this is 200 nm.This resolution limit was postulated by Ernst Abbe 1873 and for decades it was considered, that this limit could not be overcome. The reason is based on the diffraction, which occurs at two clearly differentiated objects and makes both objects appear blurred together as one. Using the…

  • Theresa Kuntze, Rudyard Urtecho
  • Page 32-33

Machine Vision

Seeing Beyond the Visible

Short‐wave infrared (SWIR) cameras open up numerous possibilities for machine vision solutions, since they detect invisible product flaws as well as desired characteristics: In contrast to mainstream machine vision cameras with CCD or CMOS sensors, most SWIR cameras have an InGaAs (Indium Gallium Arsenide) sensor and thus detect wavelengths between 900 nm and 1700 nm. These wavelengths are invisible to the human eye and CCD…

  • Jens Hashagen
  • Page 34-37

Optical Components

Custom Designed Fabrication

The silver sodium ion exchange process is a versatile and flexible technique for realizing high quality refractive microoptical elements with a high degree of freedom in design. An accurate mask technique allows for implementing a huge variety of optical functions, such as micro lens arrays with 100 % filling factor, custom designed micro lenses with different optical parameters (i. e. focal length, Numerical Aperture,…

  • Jochen Bähr
  • Page 38-41

Glass‐based Manufacturing and Prototyping Platform PhotPack

There has been considerable progress in utilizing fully automated machines for the assembly of micro‐optical systems in recent years. Such systems integrate laser sources, passive optical elements, electro‐optical components and detectors into tight packages, and efficiently couple light to waveguides in photonic integrated circuits (PIC), optical backplanes, free space or optical fibers. The required electro‐optical and…

  • Gunnar Böttger, Stefan Seifert, Henning Schröder
  • Page 42-47

Optical Sensors

Polymer Planar Bragg Gratings

Combining the advantageous properties of cyclo olefin copolymers (COC) with a rapid UV laser based fabrication process, we highlight the generation of planar waveguide Bragg gratings suitable for multi‐axial strain sensing (Fig. 1). Bragg gratings are optical filters reflecting a small wavelength band, which is determined by the spatial grating period and the effective refractive index. As both determining factors depend,…

  • Manuel Rosenberger, Bernhard Schmauss, Ralf Hellmann
  • Page 48-51

Calendar

Meetings

Service

Buyers’ Guide

  • Page 56-56

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