Prediction of simultaneously large and opposite generalized Goos-Hänchen shifts for TE and TM light beams in an asymmetric double-prism configuration

Li, Chunfang; Wang, Qi

doi:10.1103/physreve.69.055601

Cited by 60 publications

(22 citation statements)

References 31 publications

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“…(8), the reflected field in Eq. (6) can be found in a similar way. Here, in addition, we have to expand the reflection coefficient in Eq.…”

Section: B Reflected Beam Fieldmentioning

confidence: 57%

“…(1), the GH shift even for (partial) reflection from an absorbing medium. The result, although attracting some attention, [5][6][7][8] needs substantiation and generalization, especially in view of the question of an undistorted beam because of a small and angle-dependent reflection coefficient at and around Brewster's dip. The present paper is intended exactly to address this and other related questions.…”

Section: Introductionmentioning

confidence: 99%

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Nonspecular effects on reflection from absorbing media at and around Brewster's dip

2006

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We show that, for a TM (or p-state) Gaussian beam incident onto an absorbing medium at and around Brewster's dip, the reflected beam always remains Gaussian and undergoes a Goos-Hänchen-like (GH) shift, an angular shift, a focal shift, and a beam-waist modification, provided that the beam is sufficiently collimated that the third-order change of the (logarithmic) reflection coefficient can be ignored in the angular range of beam divergence. For weak absorption, not only are a large negative GH shift and an odd-functioned-like focal shift with greater magnitude found but also the angular shift, though small by itself, is shown to give an even larger lateral net shift at a distance beyond the Rayleigh range.

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“…(8), the reflected field in Eq. (6) can be found in a similar way. Here, in addition, we have to expand the reflection coefficient in Eq.…”

Section: B Reflected Beam Fieldmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Nonspecular effects on reflection from absorbing media at and around Brewster's dip

2006

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“…Some investigations have shown that the GH shift of the transmitted electrons can be enhanced by transmission resonances in graphene or other nanostructures. 24,[26][27][28] In this study, we propose an effective way to realize an electron spin beam splitter by using the GH effect in graphene. We investigated the spatial separation of the spin-up and spin-down electron beams through a structure (shown in Fig.…”

mentioning

confidence: 99%

A spin beam splitter in graphene through the Goos–Hänchen shift

Zhang

Chan

2014

Applied Physics Letters

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We propose a method of realizing an effective electron spin beam splitter in graphene through the Goos-Hänchen effect. The device consists of a layer of monolayer graphene on which two ferromagnetic stripes are deposited with parallel or antiparallel magnetization configuration. It is shown that the transmitted spin-up and spin-down electron beams are found at different longitudinal positions and their spatial separation can be enhanced by the number of transmission resonances formed between the two ferromagnetic stripes. The spatial separation between the spin-up and spin-down electron beams can reach values up to hundreds of wavelengths, which can be observed experimentally.

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“…The peaks of the theoretical shifts are about −4.54λ for the perpendicular field and 24.25λ ( 19.66λ ) for dip I (dip II) of the parallel field. It is noted that the discrepancy between theoretical and numerical results is due to the distortion of the reflected beam, especially when the waist of the incident beam is narrow [36]. Further numerical simulation shows that the wider the incident beam is, the smaller the discrepancy is.…”

Section: Resultsmentioning

confidence: 90%

Large positive and negative lateral shifts near pseudo-Brewster dip on reflection from a chiral metamaterial slab

Huang

Gao

et al. 2011

Opt. Express

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The lateral shifts from a slab of lossy chiral metamaterial are predicted for both perpendicular and parallel components of the reflected field, when the transverse electric (TE)-polarized incident wave is applied. By introducing different chirality parameter, the lateral shifts can be large positive or negative near the pseudo-Brewster angle. It is found that the lateral shifts from the negative chiral slab are affected by the angle of incidence and the chirality parameter. In the presence of inevitable loss of the chiral slab, the enhanced lateral shifts will be decreased, and the pseudo-Brewster angle will disappear correspondingly. For the negative chiral slab with loss which is invisible for the right circularly polarized (RCP) wave, we find that the loss of the chiral slab will lead to the fluctuation of the lateral shift with respect to the thickness of the chiral slab.The validity of the stationary-phase analysis is demonstrated by numerical simulations of a Gaussian-shaped beam.

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Prediction of simultaneously large and opposite generalized Goos-Hänchen shifts for TE and TM light beams in an asymmetric double-prism configuration

Cited by 60 publications

References 31 publications

Nonspecular effects on reflection from absorbing media at and around Brewster's dip

Nonspecular effects on reflection from absorbing media at and around Brewster's dip

A spin beam splitter in graphene through the Goos–Hänchen shift

Large positive and negative lateral shifts near pseudo-Brewster dip on reflection from a chiral metamaterial slab

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