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4124 results in Optics, Optoelectronics and Photonics

Page 14 of 207

  • 7 - Light Emitting Diodes

  • Mauro Nisoli, Politecnico di Milano
  • Book:
    Semiconductor Laser Photonics
    Published online:
    10 November 2022
    Print publication:
    24 November 2022, pp 188-210

  • Summary

    Light emitting diodes (LEDs): photon flux, injection efficiency, internal quantum efficiency. Double-heterostructure LEDs. Burstein-Moss shift. Carrier overflow. Carrier leakage over the barrier. External efficiency of a LED: transmission efficiency and external quantum efficiency. Output power, responsivity, and wall-plug efficiency. Emission pattern of LEDs. Luminous efficiency. Blue LEDs.

  • 9 - Quantum Dot Lasers

  • Mauro Nisoli, Politecnico di Milano
  • Book:
    Semiconductor Laser Photonics
    Published online:
    10 November 2022
    Print publication:
    24 November 2022, pp 232-257

  • Summary

    Quantum dot lasers. Fabrication techniques of quantum dots: self-assembling formation of quantum dots (Stranski-Krastanov growth mode). General scheme of quantum dot lasers. Electronic states in quantum dots: particle in a cubic box; spherical quantum dots. Coulomb interaction. Carrier statistics in quantum dots. Optical transitions. Absorption and gain spectrum. Threshold current density and its temperature dependence. Linewidth enhancement factor.

Semiconductor Laser Photonics
  • 2nd edition
  • Mauro Nisoli
  • Published online:
    10 November 2022
    Print publication:
    24 November 2022
  • This modern text provides detailed coverage of the important physical processes underpinning semiconductor devices. Advanced analysis of the optical properties of semiconductors without the requirement of complex mathematical formalism allows clear physical interpretation of all obtained results. The book describes fundamental aspects of solid-state physics and the quantum mechanics of electron-photon interactions, in addition to discussing in detail the photonic properties of bulk and quantum well semiconductors. The final six chapters focus on the physical properties of several widely-used photonic devices, including distributed feedback lasers, vertical-cavity surface-emitting lasers, quantum dot lasers, and quantum cascade lasers. This book is ideal for graduate students in physics and electrical engineering and a useful reference for optical scientists.

An Introduction to Special Relativity for Radiation and Plasma Physics
  • Greg Tallents
  • Published online:
    10 November 2022
    Print publication:
    24 November 2022
  • This textbook introduces the topic of special relativity, with a particular emphasis upon light-matter interaction and the production of light in plasma. The physics of special relativity is intuitively developed and related to the radiative processes of light. The book reviews the underlying theory of special relativity, before extending the discussion to applications frequently encountered by postgraduates and researchers in astrophysics, high power laser interactions and the users of specialized light sources, such as synchrotrons and free electron lasers. A highly pedagogical approach is adopted throughout, and numerous exercises are included within each chapter to reinforce the presentation of key concepts and applications of the material.

Page 14 of 207