The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A fast, low cost laser trimming technique of highly accurate resistor has been developed for analogue microelectronics. Modelling of the technique is described and an example of tuning a reference voltage circuit is given.
The advantages of laser micro-processing in device manufacture for the Solar, Displays and Microsystems industries have lead to the replacement of conventional manufacturing techniques in production environments. Tool advances and industrial production techniques will be discussed.
High EUV source power has been demonstrated with a laser-plasma source exhibiting low debris and high conversion efficiency. This offers a viable path towards successful realization of EUV lithography for the next generation semiconductor devices.
We have explored several aspects of superfluidity of ultracold fermionic atoms, including superfluidity of rotating clouds, of clouds with an imbalance in the population of the two components, and of atoms in an optical lattice.
Self-phase modulation (SPM) is crucial to the production and expansion of optical frequency combs based on mode-locked lasers. I will review how SPM makes bigger and better frequency combs and discuss some of their applications.
An overview will be presented covering early initial observations and interpretation of self-phase modulation in self-trapped filaments of light and mode-locked laser pulses, the subsequent evolution of the basic concepts, and various applications.
Laser system power can be increased using volume Bragg gratings in PTR glass to combine multiple beams into a near-diffraction-limited beam. We present results of combining five fiber lasers and show achievability of multi-kW-level systems.
A new micro-machining technology - the water jet guided laser, also called as LaserMicroJet?? technology - has been developed for the manufacturing of sophisticated and heat sensitive OLED masks.
A new type of beam shaping system in combination with special characterization of laser parameters provides several mm depth of focus by narrow width and very good homogenization of the line-shaped laser intensity distribution for scanning annealing.
We present cryogenic experiments where the direct signature of a single molecule on an incident laser beam is demonstrated. Strong extinction larger than 10% is achieved in near and farfield geometries.
The micromachining capabilities of two newly developed DPSS mode-locked and q-switched UV lasers have been evaluated by studying ablation of commonly used materials in semiconductor, microelectronics, and solar cell industry.
The transformation principle of a Gaussian beam into a homogeneous top-hat profile by means of free-form refractive micro-optics is reviewed. Various flat-top profiles achieved with different laser sources as well as micro-machining results are demonstrated.
The methods, instrumentation, and application of time domain terahertz imaging (a.k.a. THz or T-Ray Imaging) for non-destructive evaluation (NDE) and security are discussed.
A swept source OCT system capable of simultaneous imaging sample structural and blood flow information is demonstrated. This system has 3-D imaging capability which combines the advantages of OCT and microscopy in a single system.
With a virtual-transition characteristic, harmonic generation microscopy provides high-penetration non-invasive intravital optical images with a submicron 3D resolution, ideal for in vivo disease diagnoses and longterm live animal studies.
Waveguide lasers are manufactured using laser radiation for the deposition of thin films and the micro structuring of the wave guiding structures. For the first time laser activity in fs-laser structured amorphous waveguides was achieved.
Chemical imaging, a multi-mode hyperspectral imaging approach combining Raman, fluorescence and NIR spectroscopies, is being evaluated for point and standoff detection of chemical, biological and explosive (CBE) threats. Results from sponsored studies will be presented.
A standoff bio-aerosol-sensor is in prototype development and test for short range building-interior applications. It measures elastic backscatter at ultraviolet and near-infrared laser wavelengths to detect respirable aerosol clouds and measures ultraviolet fluorescence for aerosol discrimination.
Green and deep-green light emitting diodes are still the weakest link in energy efficient Solid-State Lighting. We analyze the limiting factors of the external quantum efficiency and summarize our approach of dislocation and polarization control.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.