Optical analogue structures to mesoscopic devices

Dragoman, Daniela; Dragoman, Mircea

doi:10.1016/s0079-6727(99)00007-5

Cited by 73 publications

(50 citation statements)

References 71 publications

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“…The basic principle behind such experiments would be to employ local gates and collimators similar to those used in electron optics in 2D gases 29,30 . One possible experimental setup is shown schematically in Fig.…”

Section: Implications For Experimentsmentioning

confidence: 99%

Chiral tunnelling and the Klein paradox in graphene

2006

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The so-called Klein paradox -unimpeded penetration of relativistic particles through high and wide potential barriers -is one of the most exotic and counterintuitive consequences of quantum electrodynamics (QED). The phenomenon is discussed in many contexts in particle, nuclear and astro-physics but direct tests of the Klein paradox using elementary particles have so far proved impossible. Here we show that the effect can be tested in a conceptually simple condensed-matter experiment by using electrostatic barriers in single-and bi-layer graphene. Due to the chiral nature of their quasiparticles, quantum tunneling in these materials becomes highly anisotropic, qualitatively different from the case of normal, nonrelativistic electrons.Massless Dirac fermions in graphene allow a close realization of Klein's gedanken experiment whereas massive chiral fermions in bilayer graphene offer an interesting complementary system that elucidates the basic physics involved.

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Section: Implications For Experimentsmentioning

confidence: 99%

Chiral tunnelling and the Klein paradox in graphene

2006

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“…In spite of the great amount of works dealing with quantum-optical analogies, comprehensive reviews on the latest developments are few or even lacking. A review dealing with correspondences between classical optics and quantum mechanics, which focusses on a phase space treatment of analogies, is presented in [24]; optical analogue structures of mesoscopic quantum devices are comprehensively reviewed in [26], whereas a general review on the broader field of quantum-classical analogies can be found in the book by Dragoman [27]. It is the aim of this section to present a brief overview on more recent quantum-optical analogies and to propose a classification of them.…”

Section: Overview On Quantum-optical Analogiesmentioning

confidence: 99%

Quantum‐optical analogies using photonic structures

Longhi¹

2009

Laser & Photonics Reviews

670

579

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Engineered photonic waveguides have provided in the past decade an extremely rich laboratory tool to visualize with optical waves the classic analogues of a wide variety of coherent quantum phenomena encountered in atomic, molecular or condensed-matter physics. As compared to quantum systems, optics offers the rather unique advantage of a direct mapping of the wave function evolution in coordinate space by simple fluorescence imaging or scanning tunneling optical microscopy techniques. In this contribution recent theoretical and experimental advances in the field of quantum-optical analogies are reviewed. Special attention is devoted to some relevant optical analogies based on the use of curved photonic structures, including: coherent destruction of tunneling in driven bistable potentials; coherent population transfer and adiabatic passage in laser-driven multilevel atomic systems; quantum decay control and Zeno dynamics; electronic Bloch oscillations and Zener tunneling, Anderson localization and dynamic localization in crystalline potentials. Curvilinear Propagation distance (cm) u u ( m) m 8 6 4 2 0 0 20 40 60 Curvilinear Propagation distance (cm) u Beam Center of Mass n > > 0 2 4 6 8 0 2 4 6 8 10 u u 0 Input Beam R a Optical analogue of quantum particle bouncing on a lattice under the gravitational field. A light wave packet periodically bounces the edge of a circularly-curved waveguide array, showing collapses and revivals.

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“…With the advent of techniques for the semiconductor growth and fabrication of semiconductor nanoelectronic devices, the optics-like phenomenon [38], such as reflection, focusing, diffraction, and interference, resulting from the fact that the quantum-mechanical wave nature of electrons, become prominent in electron wave devices, thus have given rise to a field of research which is best described as ballistic electron optics in two-dimensional electron systems (2DESs) [39,40]. In 1993, Wilson et.…”

Section: Introductionmentioning

confidence: 99%

Electronic analogy of the Goos–Hänchen effect: a review

Chen¹,

Lu²,

Ban³

et al. 2013

J. Opt.

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Abstract. The analogies between optical and electronic Goos-Hänchen effects are established based on electron wave optics in semiconductor or graphene-based nanostructures. In this paper, we give a brief overview of the progress achieved so far in the field of electronic Goos-Hänchen shifts, and show the relevant optical analogies. In particular, we present several theoretical results on the giant positive and negative Goos-Hänchen shifts in various semiconductor or graphen-based nanostructures, their controllability, and potential applications in electronic devices, e.g. spin (or valley) beam splitters.

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Optical analogue structures to mesoscopic devices

Cited by 73 publications

References 71 publications

Chiral tunnelling and the Klein paradox in graphene

Chiral tunnelling and the Klein paradox in graphene

Quantum‐optical analogies using photonic structures

Electronic analogy of the Goos–Hänchen effect: a review

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