On-demand spin-state manipulation of single-photon emission from quantum dot integrated with metasurface

The semiconductor quantum dot (QD) has been successfully demonstrated as a potentially scalable and on-chip integration technology to generate the triggered photon streams that have many important applications in quantum information science. However, the randomicity of these photon streams emitted from the QD seriously compromises its use and especially hinders the on-demand manipulation of the spin states. Here, by accurately integrating a QD and its mirror image onto the two foci of a bifocal metalens, we demonstrate the on-demand generation and separation of the spin states of the emitted single photons. The photon streams with different spin states emitted from the QD can be flexibly manipulated to propagate along arbitrarily designed directions with high collimation of the smallest measured beaming divergence angle of 3.17°. Our work presents an effectively integrated quantum method for the simultaneously on-demand manipulation of the polarization, propagation, and collimation of the emitted photon streams.

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On-chip single photon emission from an integrated semiconductor quantum dot into a photonic crystal waveguide

Applied Physics Letters ◽

10.1063/1.3672214 ◽

2011 ◽

Vol 99 (26) ◽

pp. 261108 ◽

Cited By ~ 66

Author(s):

Andre Schwagmann ◽

Sokratis Kalliakos ◽

Ian Farrer ◽

Jonathan P. Griffiths ◽

Geb A. C. Jones ◽

...

Keyword(s):

Photonic Crystal ◽

Quantum Dot ◽

Single Photon ◽

Photon Emission ◽

Photonic Crystal Waveguide ◽

Single Photon Emission ◽

Semiconductor Quantum Dot ◽

On Chip

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Pure single-photon emission from an InGaN/GaN quantum dot

APL Materials ◽

10.1063/5.0049488 ◽

2021 ◽

Vol 9 (6) ◽

pp. 061106

Author(s):

M. J. Holmes ◽

T. Zhu ◽

F. C.-P. Massabuau ◽

J. Jarman ◽

R. A. Oliver ◽

...

Keyword(s):

Quantum Dot ◽

Single Photon ◽

Photon Emission ◽

Single Photon Emission

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Photostability of single-photon emission from a single quantum dot in the 650-nm wavelength band at room temperature

Applied Physics B ◽

10.1007/s00340-009-3378-2 ◽

2009 ◽

Vol 94 (4) ◽

pp. 577-583 ◽

Cited By ~ 3

Author(s):

X. Xu ◽

T. Yamada ◽

A. Otomo

Keyword(s):

Quantum Dot ◽

Room Temperature ◽

Single Photon ◽

Photon Emission ◽

Wavelength Band ◽

Single Quantum ◽

Single Photon Emission ◽

Single Quantum Dot

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Chaotic Quantum Key Distribution

Cryptography ◽

10.3390/cryptography4030024 ◽

2020 ◽

Vol 4 (3) ◽

pp. 24

Author(s):

Noah Cowper ◽

Harry Shaw ◽

David Thayer

Keyword(s):

Quantum Computing ◽

Quantum Key Distribution ◽

Single Photon ◽

Photon Emission ◽

Key Distribution ◽

Maximum Amount ◽

Single Photons ◽

Single Photon Emission ◽

Amount Of Information ◽

Communication Scheme

The ability to send information securely is a vital aspect of today’s society, and with the developments in quantum computing, new ways to communicate have to be researched. We explored a novel application of quantum key distribution (QKD) and synchronized chaos which was utilized to mask a transmitted message. This communication scheme is not hampered by the ability to send single photons and consequently is not vulnerable to number splitting attacks like other QKD schemes that rely on single photon emission. This was shown by an eavesdropper gaining a maximum amount of information on the key during the first setup and listening to the key reconciliation to gain more information. We proved that there is a maximum amount of information an eavesdropper can gain during the communication, and this is insufficient to decode the message.

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Single-Photon Emission at Liquid Nitrogen Temperature from a Single InAs/GaAs Quantum Dot

Chinese Physics Letters ◽

10.1088/0256-307x/25/9/037 ◽

2008 ◽

Vol 25 (9) ◽

pp. 3231-3233 ◽

Cited By ~ 1

Author(s):

Dou Xiu-Ming ◽

Sun Bao-Quan ◽

Chang Xiu-Ying ◽

Xiong Yong-Hua ◽

Huang She-Song ◽

...

Keyword(s):

Quantum Dot ◽

Liquid Nitrogen ◽

Single Photon ◽

Photon Emission ◽

Liquid Nitrogen Temperature ◽

Single Photon Emission ◽

Gaas Quantum Dot

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ORGANIC SEMICONDUCTOR MICRO-PILLAR PROCESSED BY FOCUSED ION BEAM MILLING

International Journal of Quantum Information ◽

10.1142/s0219749905001407 ◽

2005 ◽

Vol 03 (supp01) ◽

pp. 223-228 ◽

Cited By ~ 1

Author(s):

WEN-CHANG HUNG ◽

A. ADAWI ◽

A. TAHRAOUI ◽

A. G. CULLIS

Keyword(s):

Quantum Dot ◽

Single Molecule ◽

Focused Ion Beam ◽

Single Photon ◽

Ion Beam ◽

Photon Emission ◽

Micro Machining ◽

Single Photon Emission ◽

Fabrication Procedure ◽

Pillar Structure

In order to control light, different strategies have been applied by placing an optically active medium into a semiconductor resonator and certain applications such as LEDs and laser diodes have been commercialized for many years. The possibility of nanoscale optical applications has created great interesting for quantum nanostructure research. Recently, single photon emission has been an active area of quantum dot research. A quantum dot is place between distributed Bragg reflectors (DBRs) within a micro-pillar structure. In this study, we shall report on an active layer composed of an organic material instead of a semiconductor. The micro-pillar structure is fabricated by a focused ion beam (FIB) micro-machining technique. The ultimate target is to achieve a single molecule within the micro-pillar and therefore to enable single photon emission. Here, we demonstrate some results of the fabrication procedure of a 5 micron organic micro-pillar via the focused ion beam and some measurement results from this study. The JEOL 6500 dual column system equipped with both electron and ion beams enables us to observe the fabrication procedure during the milling process. Furthermore, the strategy of the FIB micro-machining method is reported as well.

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