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  • Recent Research on Quantum Cascade Lasers
    Article - 10 Feb 2023
    Quantum cascade lasers are a type of semiconductor laser that typically emit in the mid-infrared region (~ 4 µm to 10 µm). They are somewhat unusual in comparison to other laser systems in terms of...
  • What are Schottky Barrier Photodetectors and Diodes?
    Article - 16 Jan 2023
    Similar to other junction diodes, the Schottky Barrier Diode is a type of semiconductor diode that is employed in many electronic applications requiring low voltage and high current operations.
  • Using a Maxwell Hamiltonian Theory of Matter to Develop Picophotonics
    Article - 28 Nov 2022
    In order to explain the electrodynamic dispersion of the photon field, a team led by Prof. Zubin Jacob at Purdue University developed a Maxwell Hamiltonian theory of matter along with the quantum...
  • What is Photoelectron Spectroscopy?
    Article - 31 Oct 2022
    Photoelectron spectroscopy involves the detection of the kinetic energies of photoelectrons emitted following an ionization event. If it is assumed that the emitted photoelectrons do not undergo any...
  • Novel Photodetector Inspired by Plant Photosynthesis
    Article - 28 Sep 2022
    For many years, scientists have envisioned developing novel detectors to develop superior solar cells. Recently, they have designed a photodetector inspired by plants’ photosynthetic complexes that...
  • Recent Developments in Optical Sensors
    Article - 22 Aug 2022
    While low-cost and readily deployable sensor products are entering the market at an ever-increasing rate, the roster of novel applications for optical sensing continues to grow. This article...
  • What is an Optical Particle Counter?
    Article - 18 May 2022
    A particle counter is an instrument that identifies and measures particles. There are three types of particle counters: liquid, aerosol, and solid. Monitoring the present environmental conditions...
  • Recent Advances in Sustainable Photonics Materials
    Article - 28 Mar 2022
    For technology to continue to progress and benefit people worldwide, we need to find and develop sustainable materials to build the devices we are using daily. Photonics – devices employing the...
  • Minimizing Laser Noise with Machine Learning
    Article - 18 Jan 2022
    This article looks at laser noise and how researchers are developing solutions to this using machine learning techniques.
  • How Chip-Based Optical Tweezers Levitate Nanoparticles in Vacuums
    Article - 14 Dec 2021
    Researchers from Purdue University and Pennsylvania State University have recently developed tiny chip-based optical tweezers that levitate nanoparticles using a metalens in a vacuum.

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