Centre Technology Transfer CITTRU posted this:The subject of the offer is new nonlinear optical materials for use in optoelectronics, optical devices and components.Along with the dynamic development of optical technology, there is an increasing interest in materials characterized by high birefringence and high efficiency of generating the second harmonic. The presented offer relates to co-crystals, from which one of polymorphic form is an efficient, phase matchable second harmonic generator. The averaged, relative experimental of second harmonic generation is over 14 times higher than of the commonly used nonlinear material (potassium dihydrogen phosphate). The presented optical material is colorless, suitable for growing large single crystals. The obtained crystals have extreme values of birefringence with reference to other transparent materials. The maximum birefringence for one of the polymorphic form is 0,46. For comparison, calcite, which is commonly used for the production of polarizing prisms, has a birefringence c.a 0.17. The offered materials, thanks to their properties, may be used for the construction of optical devices and components. Moreover, due to the polar structure may exhibit properties such as pyroelectricity, piezoelectricity or ferroelectricity.
University of Vigo posted this:Diagnosis and cleaning using laser technology for the restoration of historical monumentsSince ancient times granite has been used in historic buildings. Some restorers used to apply molten beeswax on their granite surfaces to stop imminent deterioration of the monuments. At first, this treatment was a good solution to consolidate the stone, but with time it resulted counterproductive. This method allows removal and cleaning of wax and other contaminants from porous stones in historical monuments and artworks using nondestructive means through laser technology.
UNIVERSIDAD DE ALICANTE posted this:Solid-state laser with COPV as active compoundThe research group “Physics of condensed matter” of the University of Alicante has developed a new solid state laser (OSL) where the active compound comprises carbon-bridged oligo(p-phenylenevinylene) (COPV). The main advantages of this technology are photostability, miscibility, processable in thin layers and effective for laser generation at different wavelengths. It can be used in the following industrial sectors: Spectroscopy, biosensors, chemical sensors and optical communications. The research group is looking for companies interested in acquiring this invention or adapting it to their requirements.
UATEC - Unidade de Transferência de Tecnologia posted this:Planar diamond thermistors for harsh environments: applied to temperature measurements in combustion and jet engines for the automobile and aerospace industry, lasers, fuel cells and in biological and aggressive chemical environmentsThe new diamond thermistors can be used for temperature measurements in harsh environments such as aggressive chemicals at high temperature or in biological media due to their inertness. Furthermore, the sintered ceramic substrate guarantees superior adhesion and resistance to fracture under high mechanical loads. The fabricated temperature sensitive diamond surface comprises well adhered ohmic contacts deposited on the backside of the dielectric ceramic substrate. This configuration prevents interaction between the temperature sensitive surface and the surrounding environment which is essential for biochemical devices applications. Furthermore, the planar geometry of the disclosed thermistor maximizes the contact region between the temperature sensitive surface and any solid flat surface on which it is placed. In this way, improved response times are obtained comparing to traditional round shaped thermistors.
Universitat de València posted this:New method for the synthesis of inert metallic nanoparticlesThe most remarkable advantages provided by this technology are: • Rapidity of the metallic nanoparticle synthetic method, as it consists of only one step. • Efficiency, since size, shape and concentration of nanoparticles are controlled, as well as, their production in organic or inorganic soluble solution. • Reduced production costs, as high temperatures are required by other alternative laser ablation methods.
UNIVERSIDAD DE ALICANTE posted this:Low cost system for measuring vibrations through camerasAmong the current methods for measuring vibrations, accelerometers are traditionally preferred. Nevertheless, these methods are contact devices, which may be difficult to use when the specimens not accessible due to the object itself or the surrounding conditions (inaccessibility, damage risk, etc.). Alternatively to the accelerometers, Doppler vibrometers are often used as non-contact devices. Although they provide very accurate result, they result expensive and non-cost effective for many applications. Additionally, both of them only provide a single point measurement while our method permits, not only monitoring the process but, with the vibration map, obtaining the vibration frequencies of all vibrating objects in the scene at a glance.
RAMOT at Tel Aviv University Ltd. posted this:Thin Film transparent conducting nanowires for display panelsThin Film transparent conducting nanowires for display panels Project ID : 11-2012-336
RAMOT at Tel Aviv University Ltd. posted this:Bismuth NanoWires and Ohmic ContactsWe have developed a reproducible method to synthesize single crystalline Bismuth nanowires (BiNWs), 40nm in diameter, with embedded quantum point contacts. We have also developed methods to characterize the ZT values of individual wires, i.e., free of any averaging of ensemble measurements, and we show that our BiNWs have superior thermoelectric properties at low temperatures (77K), with ZT>3. Project ID : 11-2013-448
RAMOT at Tel Aviv University Ltd. posted this:High-Voltage Atomic Force MicroscopyHigh-Voltage Atomic Force Microscopy Project ID : 7-2007-61
RAMOT at Tel Aviv University Ltd. posted this:Molecular Electronics and Transistors based on Peptide NanostructuresProprietary peptide nanostructures can be readily fabricated on various surfaces including electrodes. A physical vapor deposition method (PVD) allows the precise control on the molecular dimensions of the structures using industry standard techniques. These nanostructures were used to fabricate metallic nanowires1 as well as trilayer metal-peptide-metal nano-cables. Electrodes and storages devices were modified with the peptide nanostructures. Recent work includes the application of the nanostructures to Ion-Sensitive Field-Effect Transistor (ISFET) with very strong responses measured, providing the basis for potential applications (to be published). The chemical nature of the building blocks allows the simple modification with various recognition elements. This could be readily modified to recognize DNA bases for sequencing purposes. The peptide structures are semi-conductive and possess various other unique physical properties (including mechanical rigidity, piezoelectric properties, non-linear optical properties, etc.). Project ID : 7-2013-455
RAMOT at Tel Aviv University Ltd. posted this:Magnetic Devices based on Extraordinary Hall EffectMagnetic Devices based on Extraordinary Hall Effect Project ID : 11-2010-118