Laser+Photonics - Photonik

Metrology

Optical vibration measurement using laser Doppler vibrometry

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

Freeform surfaces revolutionize optical systems

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

Nanotexturing: Controlling surface reflectivity

Manufacturing

Nanotexturing: Controlling surface reflectivity

Nanoscale surface treatment reduces reflectance comparable to thin-film coatings. Random antireflective nanostructuring (RAR) also offers ease of manufacturability. mehr

LED: efficiently and precisely measuring power and irradiance

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

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

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

Beam shaping makes glass cutting more efficient

Laser

Beam shaping makes glass cutting more efficient

A combination of special focusing optics and a novel method of material modification, enable the process of cleaving thin hardened and non-hardened display glass panels one hundred times faster. mehr

Advances in pharmaceutical analysis and quality control

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

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

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

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

RGB projector with microstructured beam shaping optics

Components

RGB projector with microstructured beam shaping optics

A projector with multi-color laser light and four ultra-precise illumination freeforms on one substrate has been built. mehr

Coherent hemodynamics spectroscopy

Spectroscopy

Coherent hemodynamics spectroscopy

Quantified assessments of cerebral perfusion can be derived from non-invasive near-infrared measurements using a new method. mehr

High-speed 3D measurements

Metrology

High-speed 3D measurements

Using the GOBO (GOes Before Optics) projection principle, a system for the fast recording of 3D data has been developed. mehr

How to transform your smartphone into a microscope

Microscopy

How to transform your smartphone into a microscope

Modern mobile phones can be used for diagnostic purposes with the aid of integrated complex optic modules. mehr

Cell analysis re-defined

Microscopy

Cell analysis re-defined

A newly developed Raman microscopy system combines noninvasive cell analysis under physiologic conditions with a data analysis using less than hundred measured cells. mehr

Piezo actuators on ultrathin glass for varifocal lenses

Components

Piezo actuators on ultrathin glass for varifocal lenses

Piezo sheets with single-sided contacts enable bending actuators with non-conductive passive layers, as they are used in deformable fluid lenses with glass membranes. mehr

Innovative nanotechnology for optical microscopy

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

Ultra-precision grinding: When glass behaves like ice-cream

Manufacturing

Ultra-precision grinding: When glass behaves like ice-cream

When manufacturing aspheres, extensive polishing processes are often needed to achieve highest precision. A ultra-precision grinding process reduces the amount of time spent on polishing considerably. mehr

4D-tomography with MHz-OCT: Optics goes big data

Image Processing

4D-tomography with MHz-OCT: Optics goes big data

Thanks to a new laser technology, OCT imaging speed can be increased by more than one order of magnitude. This enables real-time video-rate investigation of three-dimensional sample structure. mehr

Artificial laser stars for next generation telescopes

Laser

Artificial laser stars for next generation telescopes

A narrow-band and tunable high-power laser system enables the use of adaptive optics at astronomical telescopes and is key for next-generation large-scale telescopes on the ground. mehr

Integrated photonics: frequency combs out of silicon nitride

Components

Integrated photonics: frequency combs out of silicon nitride

A new commercialized manufacturing process for waveguide structures opens up unique paths in integrated photonics, such as silicon nitride micro-resonator-based optical frequency combs. mehr

Precise color recognition under industrial operating conditions

Metrology

Precise color recognition under industrial operating conditions

Color recognition is a well-established method for automatization of industrial processes. Optical sensors therefor must comply with particular requirements. mehr

Looking deeper with  three-photon microscopy

Laser

Looking deeper with three-photon microscopy

Recent advances in laser technology support the growing neuroscience interest in three-photon microscopy for live sample imaging and stimulation. mehr

As far as the stacks will carry us

Laser

As far as the stacks will carry us

Numerous industrial processes are performed today with the help of diode lasers. Only physical limits could slow down its development - but they are a long way from being reached. mehr

Ion Beam Sputtering (IBS)

Manufacturing

Ion Beam Sputtering (IBS)

The IBS (Ion Beam Sputtering) coating method, despite moderate coating rates, is suited for serial production of high-quality laser optics. mehr

BioLayer Interferometry for label-free protein analysis

Metrology

BioLayer Interferometry for label-free protein analysis

BioLayer Interferometry for label-free real-time analysis of biomolecular interactions is increasingly establishing itself in the biopharmaceutical drug development and manufacturing sectors. mehr

Other Publications

ORDER

Order now your copy of LASER+PHOTONICS:



Current Issue

Media Information