scholarly journals Photophysics of GaN single-photon emitters in the visible spectral range

2018 ◽  
Vol 97 (16) ◽  
Author(s):  
Amanuel M. Berhane ◽  
Kwang-Yong Jeong ◽  
Carlo Bradac ◽  
Michael Walsh ◽  
Dirk Englund ◽  
...  
Keyword(s):  
Spectral Range ◽  
Single Photon ◽  
Visible Spectral Range ◽  
Single Photon Emitters

scholarly journals Bright Single-Photon Emitters with a CdSe Quantum Dot and Multimode Tapered Nanoantenna for the Visible Spectral Range

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 916
Author(s):  
Maxim Rakhlin ◽  
Sergey Sorokin ◽  
Dmitrii Kazanov ◽  
Irina Sedova ◽  
Tatiana Shubina ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Spectral Range ◽  
Focused Ion Beam ◽  
Optical Pumping ◽  
Single Photon ◽  
Ion Beam ◽  
Visible Spectral Range ◽  
Single Photons ◽  
Free Space Optical ◽  
Single Photon Emitters

We report on single photon emitters for the green-yellow spectral range, which comprise a CdSe/ZnSe quantum dot placed inside a semiconductor tapered nanocolumn acting as a multimode nanoantenna. Despite the presence of many optical modes inside, such a nanoantenna is able to collect the quantum dot radiation and ensure its effective output. We demonstrate periodic arrays of such emitters, which are fabricated by focused ion beam etching from a II-VI/III-V heterostructure grown using molecular beam epitaxy. With non-resonant optical pumping, the average count rate of emitted single photons exceeds 5 MHz with the second-order correlation function g(2)(0) = 0.25 at 220 K. Such single photon emitters are promising for secure free space optical communication lines.

scholarly journals Electrically pumped single-photon emission in the visible spectral range up to 80 K

2008 ◽  
Vol 16 (17) ◽  
pp. 12771 ◽  
Author(s):  
M. Reischle ◽  
G, J. Beirne ◽  
W.-M. Schulz ◽  
M. Eichfelder ◽  
R. Roßbach ◽  
...  
Keyword(s):  
Spectral Range ◽  
Single Photon ◽  
Photon Emission ◽  
Visible Spectral Range ◽  
Single Photon Emission ◽  
Electrically Pumped

scholarly journals First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride

2021 ◽  
Vol 125 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Cesar Jara ◽  
Tomáš Rauch ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Ariel Norambuena ◽  
...  
Keyword(s):  
Boron Nitride ◽  
First Principles ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Carbon Clusters ◽  
Single Photon Emitters

scholarly journals MoS2 Based Photodetectors: A Review

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2758
Author(s):  
Alberto Taffelli ◽  
Sandra Dirè ◽  
Alberto Quaranta ◽  
Lucio Pancheri
Keyword(s):  
Electric Fields ◽  
Spectral Range ◽  
Performance Metrics ◽  
Transition Metal Dichalcogenides ◽  
Visible Spectral Range ◽  
Detector Performance ◽  
Strong Light ◽  
Near Ultraviolet ◽  
Passivation Layers ◽  
Low Dimensional

Photodetectors based on transition metal dichalcogenides (TMDs) have been widely reported in the literature and molybdenum disulfide (MoS2) has been the most extensively explored for photodetection applications. The properties of MoS2, such as direct band gap transition in low dimensional structures, strong light–matter interaction and good carrier mobility, combined with the possibility of fabricating thin MoS2 films, have attracted interest for this material in the field of optoelectronics. In this work, MoS2-based photodetectors are reviewed in terms of their main performance metrics, namely responsivity, detectivity, response time and dark current. Although neat MoS2-based detectors already show remarkable characteristics in the visible spectral range, MoS2 can be advantageously coupled with other materials to further improve the detector performance Nanoparticles (NPs) and quantum dots (QDs) have been exploited in combination with MoS2 to boost the response of the devices in the near ultraviolet (NUV) and infrared (IR) spectral range. Moreover, heterostructures with different materials (e.g., other TMDs, Graphene) can speed up the response of the photodetectors through the creation of built-in electric fields and the faster transport of charge carriers. Finally, in order to enhance the stability of the devices, perovskites have been exploited both as passivation layers and as electron reservoirs.

Experimental Optical Properties of Single-Photon Emitters in Aluminum Nitride Films

2021 ◽  
Author(s):  
Yongzhou Xue ◽  
Tongbo Wei ◽  
Hongliang Chang ◽  
Dongdong Liang ◽  
Xiuming Dou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Aluminum Nitride ◽  
Single Photon ◽  
Single Photon Emitters

scholarly journals Localization of Narrowband Single Photon Emitters in Nanodiamonds

2016 ◽  
Vol 8 (11) ◽  
pp. 7590-7594 ◽  
Author(s):  
Kerem Bray ◽  
Russell Sandstrom ◽  
Christopher Elbadawi ◽  
Martin Fischer ◽  
Matthias Schreck ◽  
...  
Keyword(s):  
Single Photon ◽  
Single Photon Emitters
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