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A project at Macquarie University has demonstrated a way to narrow the linewidth of a laser beam by a factor of over ten thousand.Published in APL Photonics, the technique offers a promising route toward ultra-narrow linewidth lasers for potential use in a wide range of pump-pulse systems.Laser linewidth measures how precisely a beam of light maintains its frequency and color purity, and narrow-li...
Researchers from Materials Science at Harbin Institute of Technology, Zhengzhou Research Institute at Harbin Institute of Technology, and Key Laboratory of Microsystems and Microstructure Manufacturing at Harbin Institute of Technology, Ministry of Education, reviewed and reported on the research progress of laser surface cleaning of carbon fiber reinforced polymer composites (CFRP). The relevant ...
The latest research led by the University of Surrey shows that alumina (Al2O3) nanoparticles can significantly enhance the lifespan and stability of perovskite solar cells, extending the service life of such high-efficiency energy devices tenfold.Although perovskite solar cells have advantages such as low cost and light weight compared to traditional silicon-based technologies, their commercial po...
Optical metamaterials are an effective way to utilize their superior photon capture capabilities. Therefore, perfect absorbers can be achieved through nanoscale resonant plasmas and metamaterial structures.Metamaterial perfect absorbers (MPAs) are typically composed of periodic subwavelength metals (such as plasma superabsorbers) or dielectric resonance units. Compared with static passive physical...
Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity - a quantum cavity is an optical device composed of two excellent small mirrors that can capture light in a small area for a long time.This model and its predictions can be used for the next generation of superradiance lasers. They can be used and observed in cutting-edge cavity/wa...