Optik & Photonik 2016/2 April

OPPH-16-02_150Cover Picture

Cover Picture: Optik & Photonik 2/2016

Laser lines and laser spots are used for a large variety of applications. Depending on the required depth of focus of the laser line, either micro lines with a high power density and smaller depth of focus or macro lines with increased depth of focus are appropriate. Special variants with low noise and reduced coherence can improve the measurement results.

Editorial

Optics Trends — an Inside Perspective
  • Samuel Sadoulet
  • Page 1

Contents

Contents: Optik & Photonik 2/2016
  • Page 2-3

News

News: Optik & Photonik 2/2016
  • Page 4-9

Products

Products: Optik & Photonik 2/2016
  • Page 10-11

Company Profiles

Company Profiles: Optik & Photonik 2/2016
  • Page 12-17

Organizations & Initiatives

Run West
  • Oliver Dreissigacker
  • Page 18
EMVA Debuts New Presentation Forum ‘Control Vision Talks’ at Control 2016
  • Page 18

Microscopy

Get the Picture!

The power of today’s high‐resolution fluorescence imaging brings new capabilities to bear on everything from serum analysis to water quality inspection. Fluorescence filter cubes help scientists and engineers develop and create powerful new systems. Tight control over chromatic bands and optical wavefront, coupled with infinity‐corrected optical train design, brings unprecedented interchangeability and performance to new…

  • Stephan Briggs
  • Page 19-22
Testing and Pushing the Limits of Super‐Resolution Microscopy

In recent years, the spatial resolution in fluorescence microscopy has seen a dramatic improvement due to the invention of several super‐resolution techniques which break the diffraction limit. However, validating and testing these new techniques remains challenging due to the lack of reliable test‐structures providing well‐defined mark‐to‐mark distances. Newly developed nanostructures allow to position dye molecules with…

  • Jürgen Schmied
  • Page 23-26
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 27-30

Measurement Technology

Laser Sources for Metrology and Machine Vision

The laser sources shown in Fig. 1 combine a laser diode with refractive and sometimes diffractive optics to achieve the required beam shape. The form and shape of the beams reflect the broad variety of their application. Even within the basic groupings of laser line, laser spot or pattern, there are variants that differ widely in their physical characteristics.

  • Ulrich Oechsner, Christian Knothe, Mats Rahmel, Michael Schulz
  • Page 31-34
Precise Under Harsh Conditions

One of the most important changes in metrology in the past few decades has been the development of portable measuring devices. This has brought inspection right to the production line, as close to the part as possible. The change — sparked by the development of portable measuring arms and the emergence of laser trackers — has turned conventional industry inspection methods completely upside down.

  • Jean‐François Larue
  • Page 35-37
Monitoring High Temperatures in Industrial Applications

State of the art IR cameras in the near infrared spectral range for monitoring high temperatures in industrial applications are characterized by a number of small measurement ranges. Scenes with a high temperature contrast require several measures switching between these ranges and result in pictures with under‐ or overexposed parts, respectively. New developed high temperature IR cameras with…

  • Christian Schiewe
  • Page 38-40

Optical Components

Optical Diffraction Gratings for Spectroscopic Instruments

Diffraction gratings are an essential part of a spectrometer. The optical properties of a grating with respect to high grating efficiency, low polarization sensitivity and low stray light level improve the signal to noise ratio and the spectral resolution of a spectrometer, thus enabling further applications of spectroscopy. The production of gratings with a highest level of optical performance is therefore a prerequisite…

  • Peter Triebel, Tobias Moeller, Torsten Diehl, Matthias Burkhardt, Lars Erdmann, Alexandre Gatto
  • Page 41-44
Micro‐Optics for Photolithography

Photolithography is the engine that empowered semiconductor industry to reduce the minimum feature size of the components of a microchip from some 50 microns in the 1960s to below 14 nanometers today. Diffractive and refractive micro‐optical components play a decisive role in modern photolithography systems, e.g. for laser line width narrowing, laser beam shaping (customized illumination), as phaseshift masks, for optical…

  • Reinhard Voelkel
  • Page 45-48

Medical Applications

Femtosecond Lasers in Ophthalmology

Presbyopia is the most common visual defect of the human eye. Beginning with the age of 45 years, most people lose the ability to focus on near objects due to the loss of accommodation ability of the crystalline lens. Within the research network IKARUS, a femtosecond laser system has been realized, which is able to generate microscopic sliding into the crystalline lens, to restore the accommodative capacity of the eye. The…

  • Ben Matthias, Alexander Krüger, Tammo Ripken, Uwe Oberheide, Holger Lubatschowski
  • Page 49-53

Additive Manufacturing

Two‐Photon Polymerization — A Versatile Microfabrication Tool

With additive manufacturing entering the consumer market and exciting the stock market, “3D printing” has become fashionable in society. Freedom in design as well as easy workflows are positive attributes associated with this umbrella terminology for a variety of fabrication techniques. 3D printing, or additive manufacturing, gives designers previously unknown flexibilities and eliminates one of the most cost‐, time‐ and…

  • Fabian Niesler, Martin Hermatschweiler
  • Page 54-57

Calendar

Events April 2016 — September 2016
  • Page 58

Meetings

Meetings: Optik & Photonik 2/2016
  • Page 59-63

Service

Buyers’ Guide
  • Page 64

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