Clean, unoxidized, bare metal surfaces have such low emissivity that they are difficult to measure with a thermal imaging camera. In order to get good measurements, the emissivity of these surfaces needs to be increased. This application note describes how to use a variety of low-cost materials to increase target emissivity in many industrial R&D and electrical applications.

A “dynamic” deadfront panel is used to create a sleek, uncluttered user interface appearance, drawing attention to the “hidden” light up indicators as required. The icons or other alpha-numeric indicators are visible when backlit, and when unlit, a monochromatic streamlined look is achieved. Abrisa Technologies offers complete solutions for deadfront panel glass technologies including screen printed graphics, chemical strengthening or heat tempering, anti-scratch coatings, and more.

Thermal imaging cameras can be utilized as powerful tools for semiconductor failure analysis. However, conventional thermography or thermal imaging techniques used for semiconductor devices are faced with intensity variations caused by differences in emissivity of the various materials, and thermal hot spot dilation. This application note discusses the value and effectiveness of using thermal lock-in when conducting semiconductor inspections.

In general, typical filter optical specifications will include the wavelength ranges over which to reflect and transmit light, angle of incidence tuning range, clear aperture of the filter, the polarization state of light for non-normal angles of incidence, light coherency (laser or white light), optical beam size and cone angle of light, desired substrate material (with dimensions), incident light medium (air or glass) and so forth. 

For the first time, scientists have successfully created optically active, chiral gold nanoparticles using amino acids and peptides. Many chemicals significant to life have mirror-image twins (left-handed and right-handed structures), a characteristic that is conventionally called chirality.

An international research team including scientists from the Moscow Institute of Physics and Technology and ITMO University has proposed a way to increase the efficiency of wireless power transfer over long distances and tested it with numerical simulations and experiments.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia in Charlottesville, USA have found a way to write and delete magnets in an alloy using a laser beam – a surprising effect.

Christian Grunert has been appointed Director of Production for Laser Optics at LASER COMPONENTS. The 37-year-old engineer succeeds Uwe Schallenberg, who has been working in thin-film coatings since 1977 and served as head of this key department since 2014.

Nearly a hundred years ago, Albert Einstein and Satyendra Nath Bose predicted that quantum mechanics can force a large number of particles to behave in concert as if they were only a single particle.