Laser physics and optics

CRISTAL – sample embedding for correlative microscopy

CRISTAL - sample embedding for correlative microscopy

CRISTAL represents a novel biological sample embedding procedure that is based upon UV-curable resin that both fixes the specimen while simultaneously adjusting the refractive index. Additionally, the procedure further allows histological, electron microscopy or molecular biological analyses of embedded samples.

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Undercut and vaulted nano-scaled surfaces

Efficient manufacturing of undercut or vaulted nano-scaled surfaces

Presented here is a very simple process of manufacturing undercut respectively vaulted surfaces with nano-scaled structures. Especially for cell culture and implantologic purposes those structures are of great interest. Compared to conventional techniques rapid processing of large surface areas is possible.

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Ultra-stable cryostage for cryo fluorescence microscopy

Ultra-stable cryostage for cryo fluorescence microscopy applications

The invention relates to a sample holder to be used in cryo fluorescence microscopes or to simply and cost effectively upgrade a room temperature fluorescence microscope. The holder solves existing problems regarding thermal and mechanical stability of the sample and allows for a localization accuracy of a few hundred Angstroms.

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Gratings on glass surfaces

Gratings on glass surfaces

The newly developed method aims at producing small gratings on different materials, especially on glass surfaces, by ablating small amounts of material. The gratings can be small enough to form patterns with a diffractive effect causing the material to schiller in different colors.

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Optical Image Scanning Microscope

Optical Image Scanning Microscope

The invented method allows to perform high-resolution Image Scanning Microscopy (ISM) purely optically. Very few additional optical components are necessary and the method is suitable for upgrading existing microscopes. The method can also be applied to Two Photon Microscopy.

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X-Ray tomography with anisotropic sources

X-Ray tomography with anisotropic sources

Method for X-ray tomography with low-priced, anisotropic laboratory sources with good resolution and high measurement speed.

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Polarization Lightsheet Microscopy

Polarization Lightsheet Microscopy

This invention is an extension for lightsheet microscopy that uses the polarization properties of the analyzed specimen to acquire additional information or to enhance image quality.

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Absorbing nanoparticle-suspension for laser drilling

Absorbing nanoparticle-suspension for laser drilling

When using laser drilling, the material directly behind the drilled hole can be easily damaged. To prevent the damage, materials are placed at the backside of the hole which absorb the laser radiation. Here, a liquid containing nanoparticles is presented as an effective means of protection.

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Kerr-Band-Switch

Kerr-Band-Switch

Based on the Kerr effect, the Kerr band switch implements an alternative concept to mode coupling for the generation of ultra-short laser pulses (UKP) in a cost-effective thin film system. The switch is flexible, ultra-fast and loss-free, has a high damage threshold and only low heating.

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Laser Captive Bolt Gun

Laser Captive Bolt Gun

For reliably stunning animals for slaughter a hybrid captive bolt gun is presented, that has an internal radiation channel through which, after penetration of the animals skull, a high energy laser beam is emitted to induce a coagulation of brain tissue in the Medulla oblongata region, the connection between brain an spinal cord.

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Slaughter-integrated laser marking of farm-animals

Slaughter-integrated laser marking of farm-animals

Scientists at the Laser Zentrum Hannover, Germany developed a laser-based method for processing and marking of animals during slaughter. This greatly improves traceability, which on the one hand is demanded by many modern consumers and on the other hand makes it easier to sort out unfit carcasses.

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