Quantum interference of two photons emitted from a luminescence center in GaAs:N

被引：3
|
作者：
Ikezawa, Michio [1 ]
Zhang, Liao [1 ]
Sakuma, Yoshiki [2 ]
Masumoto, Yasuaki [1 ]
机构：
[1] Univ Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 3058571, Japan
[2] Natl Inst Mat Sci, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
来源：
APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 15期
关键词：
SINGLE PHOTONS; ISOELECTRONIC TRAPS; DOPED GAAS; NITROGEN; PHOTOLUMINESCENCE; EMISSION; STATE; PAIRS; DOT;
D O I：
10.1063/1.4979520
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The indistinguishability of photons emitted from a nitrogen luminescence center in GaAs is investigated by two-photon interference under nonresonant optical excitation. A clear dip is observed in a parallel polarization configuration for consecutively emitted two photons with a 2-ns time interval. The indistinguishability is approximately 0.24, and is found to be independent of the time interval between 2 ns and 4 ns. These results suggest the existence of a very fast dephasing mechanism within 2 ns. Published by AIP Publishing.
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页数：4
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