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Highly stable mixed coating layers for optical applications

23.11.2010 - Photonik international /2010

With improved variants of ion beam sputtering and spectral broadband monitoring, particularly stable optical layer systems for high-performance and short-pulse lasers can...
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This technical articel is also under the category: Optical Components

Ion-beam based polishing error correction in mass production of precision optics

23.11.2010 - Photonik international /2010

CNC grinding and polishing are well established procedures in manufacturing optics. Lately, plasma- and ion-beam based techniques are more frequently used as alternatives...
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This technical articel is also under the category: Optical Metrology

Design recommendations for precision glass moulding

23.11.2010 - Photonik international /2010

Precision glass moulding enables the cost-effective production of extremely precise and complex optical components from glass. In order to communicate both the capabiliti...
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Are miniaturised high-precision optics reaching the limits of classical machining?

23.11.2010 - Photonik international /2010

Today’s optical lenses are produced either through conventional surface machining, or through various replication procedures. Below we compare these manufacturing methods...
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This technical articel is also under the category: Optical Components

Extremely simple techniques for the complete spatio-temporal characterization of extremely complex ultrashort light pulses

23.11.2010 - Photonik international /2010

We describe four experimentally simple, accurate, and reliable methods for measuring both simple and very complex ultrashort light pulses. Although each method comprises ...
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This technical articel is also under the category: Laser Technology

In-line colour measurement in production environments

23.11.2010 - Photonik international /2010

Both the equipment and the measurement parameters play important roles in achieving reliable in-line colour measurement results. This article highlights several issues to...
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Non-destructive characterisation of AR coatings on curved surfaces

23.11.2010 - Photonik international 1/2010

Highly efficient anti-reflective coatings minimize disruptive reflection losses for optical components, such as precision optical lenses or ophthalmic lenses. Surface mea...
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LED heat management

23.11.2010 - Photonik international /2010

LEDs are more efficient than light bulbs, transforming roughly 30% of supplied electric power into light, yet 70% of this energy is cast off as heat. This lost heat needs...
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This technical articel is also under the category: Incoherent Light Sources

True-colour images by subwavelength gratings

23.11.2010 - Photonik international /2010

Gratings with periods smaller than visible wavelengths exhibit colourising effects in the zeroth diffraction order when its profile is designed so that electromagnetic re...
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This technical articel is also under the category: Image Capturing and Processing

Optical sectioning methods in fluorescence microscopy

23.11.2010 - Photonik international /2010

Biomedical research demands technology that enables capture and analysis of molecular and microscopic structures, as well as dynamic 3-dimensional processes without distu...
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This technical articel is also under the category: Biotechnology

Automated visual surface inspection in 3-D parts production

23.11.2010 - Photonik international /2010

Whenever the assured properties of technical and decorative surfaces cannot be ensured by the manufacturing process alone, determining surface quality through visual insp...
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This technical articel is also under the category: Optical Metrology

The pulsed fiber laser: evolution and application

12.11.2009 - Photonik international 2/2009

Up until 10 years ago, pulsed fiber lasers’ performance peaked out in the mW or low Watt range. Such lasers were used primarily for communications technology. Hardly anyo...
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Positioning resolution – a closer look

12.11.2009 - Photonik international 2/2009

The resolution and the position noise of piezo actuators are largely determined by the control electronics. Consequently, positional and variation values are typically sp...
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A compact broadband EUV laser-plasma source for metrological applications

12.11.2009 - Photonik international 2/2009

Metrology applications require compact laser-plasma sources that generate broad extreme ultra-violet (EUV) radiation cost effectively. A combination of a small diode-pump...
[ read more ] | [ deutsche Version lesen ] 

Diagnostics of high repetition rate pulsed lasers

12.11.2009 - Photonik international 2/2009

Developers and user of high repetition rate lasers are facing a number of challenging issues: Not only characterize pico- and nanosecond laser pulses in “no time”, but al...
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Laser Doppler distance sensor and its applications

12.11.2009 - Photonik international 2/2009

The measurement of distance with high resolution is of great importance in many technical processes. Due to their non-contact and precise measurement principle optical se...
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This technical articel is also under the category: Laser Technology

Optimize your process with high-speed imaging

12.11.2009 - Photonik international 2/2009

The devil is in the details of every rapid-motion process. Clues to problems, solutions, and many other significant details are often lost in observations made at origina...
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Transistors behind the lens – electronic shuttering on image sensors

12.11.2009 - Photonik international 2/2009

In the development of image sensors, many things need to be balanced such as resolution vs. sensitivity or pixel complexity vs. fill-factor. This article illustrates how ...
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Automatic detection of surface and structural defects on reflecting workpieces

12.11.2009 - Photonik international 2/2009

In automatic real-time inspection of reflecting surfaces, the high-precision positioning required for the workpiece is particularly challenging. A new inspection algorith...
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This technical articel is also under the category: Optical Metrology

Super-resolution videos and single-molecule microscopy of living cells

12.11.2009 - Photonik international 2/2009

Super-resolution microscopy is quickly evolving. After the development of the STED microscope, future device generations could deliver videos of dynamic processes within ...
[ read more ] | [ deutsche Version lesen ] 

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