Technical Articles - Photonik

Innovative nanotechnology for optical microscopy
Bild: GATTAquant

Microscopy

Innovative nanotechnology for optical microscopy

A spin-off of the Technische Universität Braunschweig has developed nano-scaled rulers as calibration and test tools for the microscopy market. mehr

LED: efficiently and precisely measuring power and irradiance
Bild: Ophir Spiricon

Metrology

LED: efficiently and precisely measuring power and irradiance

In many industries, LEDs are replacing broadband light sources. For efficient LED quality testing in the production process, new measurement techniques are needed. mehr

Highly versatile miniature ­epi-illuminator
Bild: University of Oxford

Microscopy

Highly versatile miniature ­epi-illuminator

Advanced microscopy techniques often require custom built systems or expensive additions to commercial microscopes. A novel device enhances any microscope without the need of further equipment. mehr

Wavefront-based alignment:  properties and precision
Bild: Fraunhofer IPT

Metrology

Wavefront-based alignment: properties and precision

Wavefront-based alignment is an elegant approach to high-precision positioning. The system status can be evaluated in one single measuring operation and suitable correction actions can be derived. mehr

Advances in pharmaceutical analysis and quality control
Bild: Ondax

Spectroscopy

Advances in pharmaceutical analysis and quality control

An advanced optical filter technology now enables measurement of Raman signals into the low frequency/THz regime, thus revealing the structural signature of a compound. mehr

Dynamic diffractive optics in laser scanning microscopy
Bild: Medizinische Universität Innsbruck

Microscopy

Dynamic diffractive optics in laser scanning microscopy

The use of dynamic diffractive optical elements allows for flexible optical microscopy designs. Spatial Light Modulators with liquid crystal pixels enable three-dimensional focus arrangements and optimal laser power utilisation. mehr

Biomolecular analysis using the bin-time correlation method
Bild: Fraunhofer FIT

Spectroscopy

Biomolecular analysis using the bin-time correlation method

A new fluorescence fluctuation spectroscopy method combines the advantages of fluorescence correlation spectroscopy with those of brightness-based methods for high-precision studies. mehr

Lens-free microscopy   tailored to many applications
Bild: imec

Microscopy

Lens-free microscopy tailored to many applications

Being small, conceptually simple, fast and relatively cheap, lens-free microscopy enables an abundance of applications to which traditional microscopes are less amenable. mehr

Freeform surfaces revolutionize optical systems
Bild: asphericon GmbH, Jenopotik AG

Components

Freeform surfaces revolutionize optical systems

Smaller, lighter, more efficient – freeform optical surfaces without rotational symmetry enable the implementation of completely new concepts for optical systems. mehr

Optical vibration measurement using laser Doppler vibrometry
Bild: Polytec

Metrology

Optical vibration measurement using laser Doppler vibrometry

Understanding vibrating systems in nature and technology requires sophisticated, flexible, and ideally non-invasive measurement tools. Here, non-contact laser vibrometry proves to be the highest performing method. mehr

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