Ultrabright single-photon source on diamond with electrical pumping at room and high temperatures
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2016-07-06 |
| Journal | New Journal of Physics |
| Authors | D. Yu. Fedyanin, M. Agio, D. Yu. Fedyanin, M. Agio |
| Institutions | Istituto Nazionale di Ottica, National Research Council |
| Citations | 57 |
Abstract
Section titled āAbstractāThe recently demonstrated electroluminescence of color centers in diamond\nmakes them one of the best candidates for room temperature single-photon\nsources. However, the reported emission rates are far off what can be achieved\nby state-of-the-art electrically driven epitaxial quantum dots. Since the\nelectroluminescence mechanism has not yet been elucidated, it is not clear to\nwhat extent the emission rate can be increased. Here we develop a theoretical\nframework to study single-photon emission from color centers in diamond under\nelectrical pumping. The proposed model comprises electron and hole trapping and\nreleasing, transitions between the ground and excited states of the color\ncenter as well as structural transformations of the center due to carrier\ntrapping. It provides the possibility to predict both the photon emission rate\nand the wavelength of emitted photons. Self-consistent numerical simulations of\nthe single-photon emitting diode based on the proposed model show that the\nphoton emission rate can be as high as 100 kcounts s$^{-1}$ at standard\nconditions. In contrast to most optoelectronic devices, the emission rate\nsteadily increases with the device temperature achieving of more than 100\nMcount s$^{-1}$ at 500 K, which is highly advantageous for practical\napplications. These results demonstrate the potential of color centers in\ndiamond as electrically driven non-classical light emitters and provide a\nfoundation for the design and development of single-photon sources for optical\nquantum computation and quantum communication networks operating at room and\nhigher temperatures.\n