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Related Concept Videos

Atomic Emission Spectroscopy: Overview01:20

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Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
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Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
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Electrically driven single photon source at high temperature.

Ahmed El Halawany1, Michael N Leuenberger

  • 1CREOL, College of Optics and Photonics, University of Central Florida, Orlando, FL 32826, USA. Department of Physics, University of Central Florida, Orlando, FL 32816, USA.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|February 2, 2016
PubMed
Summary
This summary is machine-generated.

This study introduces a theoretical model for an electrically driven single photon source that operates efficiently at high temperatures. Unexpectedly, decoherence enhances the performance of this novel high-temperature single photon source.

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Area of Science:

  • Quantum Optics
  • Condensed Matter Physics
  • Semiconductor Nanostructures

Background:

  • High-temperature operation is a key challenge for single photon sources.
  • Decoherence typically degrades the performance of quantum devices at elevated temperatures.

Purpose of the Study:

  • To develop a theoretical model for an electrically driven single photon source.
  • To investigate the role of decoherence in high-temperature single photon emission.

Main Methods:

  • A theoretical model based on the generalized master equation.
  • Utilizing a tight-binding model Hamiltonian.
  • Incorporating electron-longitudinal optical (LO) phonon interactions.

Main Results:

  • Achieved nearly 100% single photon emission efficiency.
  • Demonstrated strong photon antibunching (g(2)(0) << 1).
  • Confirmed efficient operation up to 300 K.

Conclusions:

  • Decoherence can be leveraged to enhance single photon source performance at high temperatures.
  • The proposed model offers a pathway for robust high-temperature quantum light sources.