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Using Tabletop Ultrafast Soft X-Ray Microscope to Resolve the Spin Dynamics Inside Rare Earth Materials

Sharing real-time information requires complex networks of systems. A promising approach for speeding up data storage devices consists of switching the magnetization, or the electrons' spin, of magnetic materials with ultra-short femtosecond laser pulses.

26 Apr 2022

Imaging X-Ray Polarimetry Mission Enables New Measurements of Cosmic Sources

The secrets hiding in the vast expanse of outer space have intrigued humankind for ages. The invention of the optical telescope during the 17th century allowed humans to see stars appearing as mere twinkling dots in the night sky.

25 Apr 2022

Hybrid Metasurface Platform Manipulates Microwave Reflection Spectra by Time-Varying Light Signals

Metasurfaces are artificial array structures consisting of subwavelength unit cells arranged on a specific two-dimensional surface. Dynamic, reconfigurable metasurfaces are an excellent way to manipulate electromagnetic (EM) waves flexibly.

25 Apr 2022

Novel Self-Cleaning Optical Fiber can be Used in Cancer Diagnostics, Environmental Monitoring

When a high-power ultrashort pulse of light interacts with a material such as a glass optical fibre, a range of highly nonlinear interactions take place that cause complex changes in both the temporal and spectral properties of the injected light.

25 Apr 2022

Mystery of Optical Solitons Solved Using Atomic Terahertz-Vibrations

Stable packets of light waves – called optical solitons – are emitted in ultrashort-pulse lasers as a chain of light flashes. These solitons often combine into pairs with very short temporal separation.

25 Apr 2022

Sustainable Laser Solutions for the Food Industry

With Earth Day almost upon us, leading laser manufacturer Luxinar is paving the way for sustainable solutions in the food industry. Whether it’s providing an ink-free alternative to mark packaging or laser co...

From Luxinar Ltd 25 Apr 2022

New Imaging Technique Computes Particle Position and Size with Nanoscale Accuracy

Scientists have formulated a unique measurement and imaging method that would resolve nanostructures smaller than the diffraction boundary of light without necessitating any labels or dyes.

22 Apr 2022

Researchers Create Sapphire Fiber Sensor With Potential to Reduce Emissions

Researchers at Oxford University have invented a sapphire fiber sensor that can withstand severe temperatures, with the potential to increase aerospace and power generating efficiency and reduce emissions significantly.

22 Apr 2022

Air-Lasing-Assisted Coherent Raman Spectroscopy for Greenhouse Gas Detection

The innovative advances in ultrafast laser technologies provide new strategies for remote sensing of atmospheric pollutants and hazardous biochemical agents.

22 Apr 2022

Scientists Find New Way to Overcome Perovskite Solar Cell Scalability Problems

Perovskites are hybrid materials made from metal halides and organic compounds. They have attracted a lot of interest in the field of solar energy because of their light-harvesting capacities combined with a low cost of manufacturing, making them prime candidates for overtake the market from their silicon counterparts.

22 Apr 2022

Breakthrough Invention Could Accelerate the Commercialization of Perovskite Photovoltaic Technology

A research team co-led by chemists from City University of Hong Kong (CityU) and Imperial College London (Imperial College) has developed new, highly efficient and stable perovskite solar cells.

22 Apr 2022

Researchers Take a Closer Look at Polymer Solar Cells in Operation

Solar cells will doubtless play a significant part in a sustainable energy future. Polymer solar cells (PSCs) specifically provide an excellent option because they are cheap to produce and can be both flexible and semitransparent.

22 Apr 2022

Using Light to Propel Micrometer-Sized Drones

A hand-held laser pointer produces no noticeable recoil forces when it is "fired" - even though it emits a directed stream of light particles. The reason for this is its very large mass compared to the very small recoil impulses that the light particles cause when leaving the laser pointer.

22 Apr 2022

Novel Imaging Approach to Examine and Measure Critical Dimensions of Semiconductor Devices

Semiconductor fabrication technology, used commonly in modern electronics, has been steadily advancing for decades. Today, semiconductor devices have shrunk to miniature sizes but are capable of performing unprecedented complex functions.

22 Apr 2022