A group of researchers from the UK, including academics from Cardiff University, has demonstrated the first practical laser that has been grown directly on a silicon substrate.
A team of physicists from the University of California, San Diego and The University of Manchester is creating tailor-made materials for cutting-edge research and perhaps a new generation of optoelectronic devices. The materials make it easier for the researchers to manipulate excitons, which are pairs of an electron and an electron hole bound to each other by an electrostatic force.
A new method of developing polarizers, devices which rotate the plane of light, has been developed which mimics the way shrimps polarize light. Whilst humans use polarizers in sunglasses and DVD players shrimp have been using them to communicate without having to worry about any prey eavesdropping on their conversation.
Scientists from the University of Strathclyde have discovered that the charged particle motion can be controlled by the diffraction of ultra-intense laser light, traveling via a thin foil. The findings in the fundamental physics of the laser-plasma interactions, may have a major impact in the fields of security, industry, and medicine. This breakthrough holds immense potential in advancing compact, cost-effective, laser-powered particle accelerators.
What do astrophysics, telecommunications and pharmacology have in common? Each of these fields relies on polarimeters — instruments that detect the direction of the oscillation of electromagnetic waves, otherwise known as the polarization of light.
The Centre for Process Innovation (CPI) has recently partnered with NovaCentrix to install a specialist system designed for the high speed photonic curing of printed electronics inks. The NovaCentrix PulseForge 1300 state-of-the-art system is the first of its kind in the UK to be available to clients on an open access basis and will aid the commercialisation of a host of applications including printed sensing and Radio Frequency Identification (RFID) and Near Field Communication (NFC) antennas for smart packaging. The recent installation builds upon CPI’s existing capability for the market adoption of printed sensing technologies, allowing companies to develop and scale up their concepts from laboratory scale right through to pilot production.
A team of physicists from ITMO University, Ioffe Physical-Technical Institute and Australian National University have researched the phenomenon of phase transition between photonic crystals and metamaterials - two types of periodic structures capable of manipulating light in intricate ways. The study helps to gain an insight into the fundamental properties of periodic structures and opens new possibilities for the design and creation of new electromagnetic materials. The results of the study were published in Nature Communications.
A dielectric film that has electronic and optical properties identical to air has been produced. The film is mechanically stable enough to be used in ultra-efficient electronic and photonic devices.
A*STAR's Institute of Microelectronics (IME) and Lumerical Solutions, Inc. (Lumerical), a global provider of photonic design software, today announced they have co -developed a calibrated compact model library (CML) for IME's silicon photonics platform and process design kit (PDK). The CML will help photonic integrated circuit (PIC) designers who use IME's silicon photonics process to improve the accuracy and reliability of their designs.
Monochromators are used to separate a broadband light source into a narrow wavelength band of interest; this is commonly achieved using a diffraction grating which can be rotated precisely through small angles. The simplicity of monochromators means that they are small, lightweight and portable. They are ideal for use in spectroscopy due to their narrow wavelength bands and ability to target specific lines.
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