Photonic crystal and quantum dot technologies for all-optical switch and logic device

Asakawa, Kiyoshi; Sugimoto, Yoshimasa; Watanabe, Yoshinori; Ozaki, Nobuhiko; Mizutani, Akio; Takata, Yoshiaki; Kitagawa, Yoshinori; Ishikawa, Hiroshi; Ikeda, Naoki; Awazu, Kunio; Wang, Xiaomin; Watanabe, Akira; Nakamura, Shigeru; Ohkouchi, Shunsuke; Inoue, Kuon; Kristensen, Martin; Sigmund, Ole; Borel, Peter Ingo; Baets, Roel

doi:10.1088/1367-2630/8/9/208

Cited by 128 publications

(56 citation statements)

References 32 publications

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“…Elsewhere there is also continued interest in optical switching schemes based on classical mechanisms for interferometric switching, in either Mach-Zehnder [20][21][22][23][24] or Sagnac 25,26 configurations, engaging optical phase shifts to provide constructive or destructive interference-many of these ͑and other͒ processes are detailed in a recent review by Wada. 27 Beyond the more widely discussed methods, a number of other concepts repeatedly resurface in the primary literature.…”

Section: Introductionmentioning

confidence: 99%

Optically controlled resonance energy transfer: Mechanism and configuration for all-optical switching

Bradshaw

Andrews

2008

The Journal of Chemical Physics

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In a molecular system of energy donors and acceptors, resonance energy transfer is the primary mechanism by means of which electronic energy is redistributed between molecules, following the excitation of a donor. Given a suitable geometric configuration it is possible to completely inhibit this energy transfer in such a way that it can only be activated by application of an off-resonant laser beam: this is the principle of optically controlled resonance energy transfer, the basis for an all-optical switch. This paper begins with an investigation of optically controlled energy transfer between a single donor and acceptor molecule, identifying the symmetry and structural constraints and analyzing in detail the dependence on molecular energy level positioning. Spatially correlated donor and acceptor arrays with linear, square, and hexagonally structured arrangements are then assessed as potential configurations for all-optical switching. Built on quantum electrodynamical principles the concept of transfer fidelity, a parameter quantifying the efficiency of energy transportation, is introduced and defined. Results are explored by employing numerical simulations and graphical analysis. Finally, a discussion focuses on the advantages of such energy transfer based processes over all-optical switching of other proposed forms.

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Section: Introductionmentioning

confidence: 99%

Optically controlled resonance energy transfer: Mechanism and configuration for all-optical switching

Bradshaw

Andrews

2008

The Journal of Chemical Physics

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“…4 In case of the latter, III-V semiconductor nanostructures are especially advantageous due to the well-established micro-fabrication technology and ability to be integrated with today's complex photonic systems. [1][2][3]5 However, sensitivity of the emission efficiency to temperature prevents their practical implementation. Generation of single photons at elevated temperatures has been achieved by utilizing QDs made of wide-bandgap II-VI materials (up to T ¼ 220 K with (Cd,Zn)Se/ZnSe QD, 6 and 300 K for CdSe/(Zn,S)Se/MgS QD 7 ), group-III nitrides (up to 300 K for GaN/AlN QD 8 ), and some of other III-V material systems (InP/(In,Al)GaP at 80 K (Ref.…”

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confidence: 99%

Single photon emission up to liquid nitrogen temperature from charged excitons confined in GaAs-based epitaxial nanostructures

Dusanowski

Syperek

Maryński

et al. 2015

Applied Physics Letters

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We demonstrate a non-classical photon emitter at near infrared wavelength based on a single (In,Ga)As/GaAs epitaxially grown columnar quantum dot. Charged exciton complexes have been identified in magneto-photoluminescence. Photon auto-correlation histograms from the recombination of a trion confined in a columnar dot exhibit sub-Poissonian statistics with an antibunching dip yielding g(2)(0) values of 0.28 and 0.46 at temperature of 10 and 80 K, respectively. Our experimental findings allow considering the GaAs-based columnar quantum dot structure as an efficient single photon source operating at above liquid nitrogen temperatures, which in some characteristics can outperform the existing solutions of any material system.

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“…Apparently, the required operation energy would be too high for practical application of those QD-based phase shifters. Photonic crystal waveguides were consequently employed in the first demonstration of QD switches featured with a MZ structure [37,102]. A π phase shift was achieved with a net control pulse energy less than 100 fJ/pulse, which is more than three orders of magnitude lower than that for the ridge waveguide devices using bare QDs, since the field enhancement and slow light effect lead to high optical nonlinearity in photonic crystal waveguides [37].…”

Section: Phase Nonlinearitymentioning

confidence: 99%

Photonic switching devices based on semiconductor nano-structures

Jin¹,

Wada²

2014

J. Phys. D: Appl. Phys.

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Abstract:Focusing and guiding light into semiconductor nanostructures can deliver revolutionary concepts for photonic devices, which offer a practical pathway towards next-generation power-efficient optical networks. In this review, we consider the prospects for photonic switches using semiconductor quantum dots (QDs) and photonic cavities which possess unique properties based on their low dimensionality. The optical nonlinearity of such photonic switches is theoretically analysed by introducing the concept of a field enhancement factor. This approach reveals drastic improvement in both power-density and speed, which is able to overcome the limitations that have beset conventional photonic switches for decades. In addition, the overall power consumption is reduced due to the atom-like nature of QDs as well as the nano-scale footprint of photonic cavities. Based on this theoretical perspective, the current state-of-the-art of QD/cavity switches is reviewed in terms of various optical nonlinearity phenomena which have been utilized to demonstrate photonic switching. Emerging techniques, enabled by cavity nonlinear effects such as wavelength tuning, Purcell-factor tuning and plasmonic effects are also discussed.

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Photonic crystal and quantum dot technologies for all-optical switch and logic device

Cited by 128 publications

References 32 publications

Optically controlled resonance energy transfer: Mechanism and configuration for all-optical switching

Optically controlled resonance energy transfer: Mechanism and configuration for all-optical switching

Single photon emission up to liquid nitrogen temperature from charged excitons confined in GaAs-based epitaxial nanostructures

Photonic switching devices based on semiconductor nano-structures

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