scholarly journals Directional Emission of a Deterministically Fabricated Quantum Dot–Bragg Reflection Multimode Waveguide System

ACS Photonics ◽  
2019 ◽  
Vol 6 (9) ◽  
pp. 2231-2237 ◽  
Author(s):  
Paweł Mrowiński ◽  
Peter Schnauber ◽  
Philipp Gutsche ◽  
Arsenty Kaganskiy ◽  
Johannes Schall ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Bragg Reflection ◽  
Multimode Waveguide ◽  
Directional Emission ◽  
Waveguide System ◽  
Multimode Waveguide System

Directional emission of quantum dot scintillators controlled by photonic crystals

2017 ◽  
Vol 111 (8) ◽  
pp. 081904 ◽  
Author(s):  
Bo Liu ◽  
Qiang Wu ◽  
Zhichao Zhu ◽  
Chuanwei Cheng ◽  
Mu Gu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Quantum Dot ◽  
Directional Emission

scholarly journals Coherent and directional emission at 155 μm from PbSe colloidal quantum dot electroluminescent device on silicon

2011 ◽  
Vol 19 (27) ◽  
pp. 26394 ◽  
Author(s):  
Junseok Heo ◽  
Zhenyu Jiang ◽  
Jian Xu ◽  
Pallab Bhattacharya
Keyword(s):  
Quantum Dot ◽  
Electroluminescent Device ◽  
Directional Emission ◽  
Colloidal Quantum Dot

scholarly journals Spin-dependent directional emission from a quantum dot ensemble embedded in an asymmetric waveguide

2019 ◽  
Vol 44 (15) ◽  
pp. 3749 ◽  
Author(s):  
Wenbo Lin ◽  
Yasutomo Ota ◽  
Satoshi Iwamoto ◽  
Yasuhiko Arakawa
Keyword(s):  
Quantum Dot ◽  
Directional Emission

scholarly journals High-brightness single photon source from a quantum dot in a directional-emission nanocavity

2009 ◽  
Vol 17 (17) ◽  
pp. 14618 ◽  
Author(s):  
Mitsuru Toishi ◽  
Dirk Englund ◽  
Andrei Faraon ◽  
Jelena Vučković
Keyword(s):  
Quantum Dot ◽  
Single Photon ◽  
Single Photon Source ◽  
High Brightness ◽  
Directional Emission ◽  
Photon Source

Characterization of Ge Quantum Dot Optical Waveguides for High Speed Optical Modulators

2018 ◽  
Vol 27 (01n02) ◽  
pp. 1840001
Author(s):  
Jan Amir Khan ◽  
Evan Heller ◽  
Faquir Jain
Keyword(s):  
Quantum Dot ◽  
Optical Waveguides ◽  
High Speed ◽  
Low Cost ◽  
Optical Modulator ◽  
Multimode Waveguide ◽  
Optical Modulators ◽  
Speed Modulation ◽  
Self Assembled

Quantum Dot (QD) Optical Modulators can provide high speed modulation in low cost indirect bandgap materials. Si based optical modulators can be realized with the inclusion of self-assembled Ge QDs to provide low cost, high speed CMOS compatible optical devices. In this paper, we present the optical characterization of a novel Ge-QD Si-SiO2 based waveguide for use in as an optical modulator. Optical performance figures of merit are investigated including insertion loss (IL) measurements, and Wavelength dependent loss (WDL). We present a multimode waveguide fabricated with conventional CMOS processing. The waveguide provides 4.43dB/cm loss and individual discrete absorption regimes corresponding to the unique minibands produced by superlattice properties of the self-assembled Ge QDs in the IR regime. Absorption properties of the Ge QDs are demonstrated and verified against the QD superlattice bandgap model. Analysis and simulation is presented to qualitatively compare the QD bandgap energies with the reported optical properties. The QD functionalized structure demonstrates the fundamental optical principles of a QD waveguide, setting the foundation for a active modulation testing of this QD based optical modulator.

Biodistribution 18F-markierter Quantum Dot-Antikörper-Biokonjugate

2019 ◽  
Author(s):  
O Mishchenko ◽  
A Schildan ◽  
O Sabri ◽  
M Patt
Keyword(s):  
Quantum Dot

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

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