Autonomy in excitation transfer via optical near-field interactions and its implications for information networking

Naruse, Makoto; Leibnitz, Kenji; Peper, Ferdinand; Tate, Naoya; Nomura, Wataru; Kawazoe, Tadashi; Murata, Masayuki; Ohtsu, Motoichi

doi:10.1016/j.nancom.2011.07.002

Cited by 16 publications

(4 citation statements)

References 24 publications

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“…For example, in Ref. [48], Naruse et al discusses topology-dependent, autonomous optical excitation transfer, and how an excitation "waits" in a multi-quantum-dot system. In addition, the coupling between semiconductor quantum dots and nanocavities has been intensively studied 49,50,51 InAs QDs formed by molecular beam epitaxy 55 .…”

Section: Discussionmentioning

confidence: 99%

Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer

Naruse

Kim

Aono

et al. 2014

Sci Rep

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By using nanoscale energy-transfer dynamics and density matrix formalism, we demonstrate theoretically and numerically that chaotic oscillation and random-number generation occur in a nanoscale system. The physical system consists of a pair of quantum dots (QDs), with one QD smaller than the other, between which energy transfers via optical near-field interactions. When the system is pumped by continuous-wave radiation and incorporates a timing delay between two energy transfers within the system, it emits optical pulses. We refer to such QD pairs as nano-optical pulsers (NOPs). Irradiating an NOP with external periodic optical pulses causes the oscillating frequency of the NOP to synchronize with the external stimulus. We find that chaotic oscillation occurs in the NOP population when they are connected by an external time delay. Moreover, by evaluating the time-domain signals by statistical-test suites, we confirm that the signals are sufficiently random to qualify the system as a random-number generator (RNG). This study reveals that even relatively simple nanodevices that interact locally with each other through optical energy transfer at scales far below the wavelength of irradiating light can exhibit complex oscillatory dynamics. These findings are significant for applications such as ultrasmall RNGs.

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Section: Discussionmentioning

confidence: 99%

Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer

Naruse

Kim

Aono

et al. 2014

Sci Rep

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“…Practical NOT logic gate and AND logic gate devices operated at room temperature have been fabricated by using InAs NPs [14]. The advantages include their superior performance levels and unique functionality, such as singlephoton operation [15], extremely low energy consumption [16], and autonomous energy transfer [9]. These advantages originate from the unique operating principles of DP devices achieved by exploiting Phenomena 3 and 4.…”

Section: Phenomenonmentioning

confidence: 99%

Perspective on an Emerging Frontier of Nanoscience Opened up by Dressed Photon Studies

Sakuma,

Ojima,

Ohtsu

2023

Nanoarchitectonics

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The core parts of developing dressed photon (DP) research that require advanced knowledge of highly mathematical quantum field theory and their potentially important impacts on the wide spectrum of long-term scientific activities in general, not necessarily restricted to those in the natural science sector, are succinctly explained in this article. Although a considerable number of remarkable technological achievements in the field of nanophotonics have been attained by utilizing DP phenomena, from the theoretical viewpoint, they remain enigmatic, as in the case of dark matter and energy in cosmology. Under such circumstances, an intriguing working hypothesis (WH) for DPs is proposed by the authors of this article through a combination of Ojima’s micro-macro duality theory and the Greenberg-Robinson theorem, claiming that the space-like momentum contribution is an inevitable element for quantum field interactions to occur. Note that, as the Schrödinger’s cat thought experiment clearly shows, the widespread common quantum mechanics knowledge is incapable of explaining how the invisible quantum world is connected to our familiar visible classical world. In the above-mentioned WH, the main reason why we cannot explain either DPs or dark entities in cosmology is shown to have roots in the fact that the prevailing theories have not revealed an important role of spacelike momentum in connecting the quantum and classical worlds. Our new WH further shows that the entire universe is connected by an instantaneous spacelike entropic spin network, as in the case of quantum spin entanglement explained in mainstream physics. Since such a network may have a close relation with the nonlocal consciousness field, which seems to be the final frontier of physics, our perspective on such a possibility is briefly given in the final section of this paper.

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“…One advantage of these devices was that their extremely small sizes (20-50 nm side length in the case of the logic gate devices using InAs NMs) were far beyond the diffraction limit, contrary to the common view [b]. Other advantages were their superior performance levels and unique functionalities, such as single-photon operation 42 , extremely low energy consumption 43 , and autonomous energy transfer 44 . These advantages originated from the unique operating principles of DP devices achieved by exploiting Phenomena 4 and 5.…”

Section: Nanometer-sized Optical Devices and Their Applicationsmentioning

confidence: 99%

<p style="text-align: left;">History, current developments, and future directions of near-field optical science

Ohtsu¹

2020

OEA

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This paper reviews the science of the optical near-field (ONF), which is created and localized in a nanometer-sized material (NM) or on its surface. It is pointed out that work on near-field optics was started in order to break through the diffraction limit in optical microscopy and had already come to an end without giving answers to the essential questions on the origin of the near-field optical interaction. However, recent studies have reincarnated these studies and identified the ONF as an off-shell quantum field. Based on this identification, a novel science called off-shell science has started on the basis that the dispersion relation between energy and momentum is invalid for the ONF. This quantum field is called the dressed photon because it is created as a result of the interaction between photons and electrons (or excitons) in a NM and, thus, it accompanies the energies of electrons or excitons. In reviewing current developments, this paper presents fifteen novel phenomena that are contrary to the common views in conventional optical science. Novel technologies developed by applying these phenomena are also reviewed. These include: nanometer-sized optical devices, nano-fabrication technology, and energy conversion technology. High-power Si light emitting diodes, Si lasers, and SiC polarization rotators are reviewed as examples of electrical to optical energy conversion. For future directions, this paper also reviews novel theoretical studies that have commenced recently by relying on physical and mathematical bases.

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Autonomy in excitation transfer via optical near-field interactions and its implications for information networking

Cited by 16 publications

References 24 publications

Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer

Chaotic oscillation and random-number generation based on nanoscale optical-energy transfer

Perspective on an Emerging Frontier of Nanoscience Opened up by Dressed Photon Studies

<p style="text-align: left;">History, current developments, and future directions of near-field optical science

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