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Backside-illuminated CMOS image sensors deliver higher sensitivity

13.11.2012 - Photonik international /2012

Backside-illuminated CMOS image sensors possess higher sensitivity in a broader spectrum than mainstream image sensors using frontside illumination. This article explores...
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Distributed fibre-optic temperature and strain measurement with extremely high spatial resolution

13.11.2012 - Photonik international /2012

"Scanning the Rayleigh scattering along a length of optical fibre enables a distributed sensor system where every point along the fibre acts as a sensor. This novel metho...
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This technical articel is also under the category: Fibre optics and Optical Communication

Chiral photonic metamaterials – polarization control by nanostructuring

13.11.2012 - Photonik international /2012

Artificial photonic metamaterials consist mainly of exotically shaped metallic nanostructures. By tailored design of their geometrical parameters, they can enhance optica...
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This technical articel is also under the category: Manufacturing of Optics

Prototyping illumination systems with stock optical components

13.11.2012 - Photonik international /2012

In most imaging system designs, development efforts focus on the imaging optics. But illumination can be an equally important factor in the success of such systems. The p...
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This technical articel is also under the category: Incoherent Light Sources

Multi-gigahertz high-power femtosecond semiconductor disk lasers

13.11.2012 - Photonik international /2012

Optically pumped semiconductor disk lasers (VECSELs) combine the advantages of solid state lasers and conventional semiconductor lasers. Modelocked by a semiconductor sat...
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Coupling ray tracers with custom software

13.11.2012 - Photonik international /2012

Optical system design is based in most cases on ray tracing using commercially available software packages. Graphical user interfaces enable standard tasks in a simple an...
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This technical articel is also under the category: Manufacturing of Optics

Laser-based terahertz generation & applications

13.11.2012 - Photonik international /2012

"Superior to alternative methods, optoelectronic techniques propel terahertz applications out of the lab and into the real world. One physical effect involves two laser b...
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This technical articel is also under the category: Laser Technology

Femtosecond laser micromachining for plastic lab-on-a-chip

13.11.2012 - Photonik international /2012

Rapid prototyping of lab-on-chip devices is accomplished using femtosecond laser micromachining techniques. Direct laser ablation allows fabrication of microfluidic chann...
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This technical articel is also under the category: Optical Components

Optical freeform surfaces: an overview

13.11.2012 - Photonik international /2012

Optical freeform surfaces have great potential for optical systems, particularly in the area of miniaturizing sub-assemblies. Unlike aspherical lens elements, however, op...
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This technical articel is also under the category: Optical Components

Replicating diffractive optical elements in synthetic quartz glass using the sol-gel-process

13.11.2012 - Photonik international /2012

When manufacturing macroscopic monolithic quartz glass products using an established sol-gel-process, the question arises about the minimum size surface structures that c...
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This technical articel is also under the category: Optical Components

Asymmetric fused fibre coupler consisting of different single-mode glass fibres

13.11.2012 - Photonik international /2012

Fused fibre couplers either combine or separate optical signals of different wavelength in telecommunications, laser development, and biomedical optics. Here, we report o...
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This technical articel is also under the category: Laser Sources

Monolithic integration of hyperspectral imaging for industrial and medical applications

17.11.2011 - Photonik international /2011

Today’s hyperspectral image processing technology is primarily confined to laboratory use. This could change rapidly once practical solutions for fast, compact, user-frie...
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This technical articel is also under the category: Manufacturing of Optics

Microlens based 4D-lightfield cameras for 3D image recording through a single lens in a single shot

17.11.2011 - Photonik international /2011

The increasing power of digital image processing makes more and more application areas accessible. Industry, in particular, demands ever increasing camera resolutions and...
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This technical articel is also under the category: Optical Metrology

Photoluminescence imaging applications in silicon photovoltaics

17.11.2011 - Photonik international /2011

Photoluminescence imaging of large-area silicon wafers was demonstrated at the University of New South Wales, Sydney, in 2005, and since then, the technique has proven to...
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This technical articel is also under the category: Laser Technology

Thermal hyperspectral imaging in the LWIR

17.11.2011 - Photonik international /2011

Hyperspectral imaging has gained importance in biomedical, chemical, industrial, aerospace and defense applications. In this article we see how ultimate performance, LWIR...
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This technical articel is also under the category: Image Capturing and Processing

Fabrication of nanoparticles and nanomaterials using laser ablation in liquids

17.11.2011 - Photonik international /2011

The potential of functionalized nanoparticles and their outstanding properties is not fully exploited yet. There are a lack of methods to integrate these properties into ...
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This technical articel is also under the category: Manufacturing of Optics

Optical parametric oscillators: a single-device femtosecond laser source for the ultraviolet to infrared region

17.11.2011 - Photonik international /2011

"After more than 50 years since the invention of the laser, nonlinear optics has provided a viable solution to the generation of coherent light in arbitrary spectral regi...
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Green III-V semiconductor lasers capture laser projection

17.11.2011 - Photonik international /2011

"It took some time before direct green diode laser light could be generated without complex frequency conversion. Due to technical barriers, lasers reached an emission wa...
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This technical articel is also under the category: Displays

Spherical aberration compensation plates

17.11.2011 - Photonik international /2011

Imaging optics strive to obtain perfect or near diffraction limited performance. The main detriment to imaging systems is spherical aberration, and it costs money and eff...
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This technical articel is also under the category: Manufacturing of Optics

Electro optical hybrids for high reliability

17.11.2011 - Photonik international /2011

Integrating electrical with optical functionality has been ongoing for decades. A mass-market calling for electro optical standard building blocks is still missing and a ...
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This technical articel is also under the category: Electronics

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