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Results 21 - 30 of 45 for Sapphire
  • Optical Pumping - Definition and Applications
    Article - 12 Mar 2014
    Optical pumping is a process in which light energy is used to excite electrons from a lower to higher energy level. It was first developed by Alfred Kastler in the early 1950s. It is primarily used to...
  • Using Dielectric Thin Films for Optical Coatings
    Article - 17 Jul 2023
    An anti-reflection coating is a dielectric thin film coating with a specific refractive index and thickness. The coating is applied to an optical surface to reduce the reflectivity/reflectance of that...
  • Using Laser Fusion to Generate High Power Lasers
    Article - 11 Feb 2020
    The staple of high-powered lasers was established in 1996 when the method of chirped-pulse amplification was used to create the world's first petawatt pulse with the Nova laser. Scientists have since...
  • The Different Types of Lasers and Lasing Media
    Article - 14 May 2018
    There are thousands of different types of lasers which are divided into different types according to the lasing medium they use. The most common ‘types’ of laser are gas, liquid, solid-state and...
  • Measuring the Exciton Valleys in WSe2
    Article - 13 Apr 2017
    Excitons, also referred to as Coulomb bound electron-hole pairs, are composite bosons which lead to condensation and light amplification processes in semiconductors.
  • Gain Medium - Definition and Use in Laser Construction
    Article - 31 Jan 2014
    Gain medium is a quantum system that amplifies laser beams by means of stimulated emission.
  • What is Optical Parametric Amplification (OPA)?
    Article - 26 Jun 2013
    Optical parametric amplification (OPA) may be described as a process of amplifying an input signal in the presence of a higher-frequency pump wave. Apart from signal amplification, an idler wave is...
  • Femtosecond Lasers in Precision Photonics Manufacturing
    Article - 27 Feb 2024
    Femtosecond lasers revolutionize precision photonics manufacturing with ultra-short pulses for intricate, damage-free micro- and nano-fabrication.
  • Ultrafast Nonlinear Optics for Laser Pulse Compression
    Article - 30 Oct 2023
    In the past 50 years, the pursuit of shorter laser pulses has been the driving force in advancing ultrafast science, with laser pulse compression techniques now enabling the generation of single-digit...
  • What is Photoacoustic Spectroscopy?
    Article - 27 Feb 2023
    Photoacoustic spectroscopy measures the effect of electromagnetic radiation on an analyte sample through acoustic detection.

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