Photon emitting, absorption, and reconstruction of photons

Changjun Liao; Jindong Wang; Zhengjun Wei; Jianping Guo

doi:10.1117/12.725263

11 January 2007 Photon emitting, absorption, and reconstruction of photons

Changjun Liao, Jindong Wang, Zhengjun Wei, Jianping Guo

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 627920 (2007) https://doi.org/10.1117/12.725263
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

Abstract

Photon cannot keep itself unchanged from emission to absorption. The information encoded on the photon is also changed due to interaction with environment. There has no definitely demonstration that the photon being absorbed is the original one from ideal light source since the quantum mechanics itself is an indeterminate theory that the physical measurement is only the probability. We divide the change of the photon state into two parts that one can be compensated and the other cannot be compensated. A concept of photon reconstruction is introduced to explain every optical phenomena including Raman scattering, multi-photon absorption, nonlinear phenomena, free electron lasing, quantum entanglement, high order coherence, ghost imaging and the de-phase which result in error bits or information loss in the quantum information process. An experimental result is explained to show that the signal photon can modify the background even the energy of the photon is not enough for absorption in the wide-band gap semiconductor material. The photon-current-voltage curve and dark-current-voltage curve of an absorption, grating, and multiplication InGaAs/InP avalanche photodiode is analyzed to show that 1550nm input light modified the dark background even the applied reverse bias voltage is far below the punch-through voltage. This increase of the dark count directly relates to the input photons at the 1550nm wavelength but is not due to absorption in the absorption layer and insensitive to the applied voltage.

Citation Download Citation

Changjun Liao, Jindong Wang, Zhengjun Wei, and Jianping Guo "Photon emitting, absorption, and reconstruction of photons", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 627920 (11 January 2007); https://doi.org/10.1117/12.725263

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KEYWORDS

Absorption

Polarization

Quantum information

Chemical species

Electromagnetism

Single photon

Avalanche photodetectors

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