The possibility of constructing an optical sensor for temperature monitoring based on the Goos-Hänchen (GH) effect is explored using a theoretical model. This model considers lateral shift incident beam upon reflection from metal-dielectric interface, with becoming function due mainly to dependence properties metal. It found that such can be most effective by long wavelength p-polarized light at almost grazing incidence onto metal, where significant variation negative GH shifts observed as...

If a cavity is leaky, its ``modes'' are quasinormal modes (QNM's) with complex frequencies, and they do not constitute Hermitian system. Nevertheless, the time-independent perturbation arising from small change of dielectric-constant distribution can be formulated in terms these discrete QNM's, resulting generalization usual scheme to non-Hermitian situation. In particular, shifts for imaginary parts eigenvalues obtained as well. This paper presents this theory scalar waves one dimension.

The exact dispersion relations of the transverse magnetic surface plasmons (SPs) supported by a graphene parallel plate waveguide (PPWG), surrounded on one or both sides Kerr-type nonlinear media, are obtained analytically. It is shown that if self-focusing materials chosen as surrounding SPs localization length (LL) decreased, while their propagation (PL) remains unchanged, compared to those typical PPWG. Moreover, PL and LL considerably affected adjusting parts dielectric permittivities...

Thermal fluctuations lead to nonspherical distortions of liquid microdroplets with typical amplitude \ensuremath{\Delta}\ensuremath{\sim}0.1 nm. The 2l+1 modes a multiplet are then split in frequency by fractional amount order \ensuremath{\Delta}/a\ensuremath{\sim}${10}^{\mathrm{\ensuremath{-}}5}$, where is the droplet radius. width domain implies proportionate reduction photon storage lifetime and can limit effective Q value defined...

The Bethe stopping-power theory is considered in the context of heavy target atoms which relativistic effects electrons are partially accounted for within semirelativistic and independent-particle description. Numerical results show that, elements with large atomic numbers, these can become comparable other corrections such as shell correction, Barkas effect, Bloch term.

The effect due to the polarization of incident high-energy (\ensuremath{\sim}GeV) proton beam on ionization cross section heavy atoms is investigated. In particular, with use Darwin wave functions for atomic electron, hydrogenlike worked out. A numerical illustration shows that completely insignificant. We also conclude $K$-shell process insensitive beam.

The lateral beam shift of light incident on a multilayered hyperbolic metamaterial (HMM) is investigated using theoretical model which emphasizes the nonlocal optical response indefinite material. By applying an effective local theory formulated recently in literature, it found that effects only affect p polarized this Goos–Hänchen (GH) beam; leading to blue-shifted peak for positive shifts at high frequencies and red-shifted dip negative low GH spectrum. An account observed phenomenon given...

Relativistic corrections to order ${\ensuremath{\alpha}}^{2}$ the Bethe sum rule have been obtained for a one-electron system employing Foldy-Wouthuysen transformation. The results wide applications in high-Z systems at large momentum transfers.

Clarifications on the optical reciprocity theorem are provided by explicitly proving equivalence between Lorentz lemma and symmetry of Green dyadic for electromagnetic wave equation. This is achieved including surface term in former so that different boundary conditions can be considered as required formulation latter. In addition, we shall also extend to include anisotropic magnetic materials with a nonlocal response, leading result which will useful study possessing such properties certain...

Recent studies have established certain specific results concerning the optical reciprocity of a source and an observer in presence dielectric medium with nonlocal response (i.e. spatial dispersion). These include case linear dependence on electric field gradient, as well general anisotropic long wavelength quasistatic limit. Here we present more rigorous study this problem by extending previous to most context exact electrodynamics reference symmetry Green dyadic. It is that for nonmagnetic...

A general scheme is presented for obtaining systematic relativistic corrections to quantum-mechanical sum rules various calculations in atomic physics. The single-particle picture and the Foldy-Wouthuysen transformation [Phys. Rev. 78, 29 (1950)] are adopted derive such corrections. Results obtained ``generalized Bethe sums,'' which include all higher moments of energy transfer, explicit results given lowest order

Reciprocity in wave propagation usually refers to the symmetry of Green's function under interchange source and observer coordinates, but this condition is not gauge invariant quantum mechanics, a problem that particularly significant presence vector potential. Several possible alternative criteria are given analyzed with reference different examples nonzero magnetic fields and/or potentials, including case multiply connected spatial domain. It shown appropriate reciprocity criterion allows...

The concept of reciprocity symmetry for matter-wave propagation is established nonrelativistic quantum mechanics with previous results in the literature extended to include nonlocal interactions. Examples are given cases both local and potentials, where we show particular that can be violated motion a charged particle an external electromagnetic field. In addition, this applied interpret recent analysis [Phys. Rev. A 64, 042716 (2001)] on transmission through one-dimensional complex emphasis...

The problem of optical reciprocity in the long wavelength limit is considered terms symmetry for scalar Green's function under Neumann boundary conditions, materials with nonlocal and anisotropic dielectric responses. This extends previous works literature which were limited either to Dirichlet conditions or cases perfect conductor local response. Application this principle analysis surface-enhanced spectroscopy a molecule near metallic nanoparticle demonstrated, accounting response particle.

An exact expression is derived within the high-$Q$ approximation for spectrum of energy losses neutrinos interacting via their magnetic moment with electrons. A formula stopping power matter and applied to study solar neutrino anomaly. The total inelastic cross section given. upper limit deduced from antineutrino as recently parametrized by Lee. It confirms bound reported Cowan Reines. distance stellar thermalize interactions studied here, through encounters stars found exceed radius...

We show that the standard solution to problem of finding force with which a dielectric is pulled into parallel plate capacitor still offers surprise.

Atomic evolutions in a single atom laser system are studied for different preparations of the initial atomic state and cavity field. Both analytical numerical results very good agreement with experiment carried out by Brune et al. [Phys. Rev. Lett. 76 (1996) 1800], if we choose same parameters as experiment. The research justified that spontaneous emission rates enhanced high- Q cavity.

It is shown that the semirelativistic approach, when applied consistently to atomic calculations involving Thomas-Reiche-Kuhn sum rule or its applications, may lead very inaccurate results.Received 14 September 1987DOI:https://doi.org/10.1103/PhysRevA.37.1775©1988 American Physical Society

The recent work of Anholt on $K$-vacancy production by relativistic projectiles has been applied to calculate the stopping power $K$ electrons. results show that for protons energy \ensuremath{\sim}${10}^{3}$ GeV and heavy target elements, contributions amount several times due longitudinal terms obtained from Walske's work.

A comparative study of three recent theoretical formalisms by Anholt, Scofield, Becker, and co-workers for K-shell ionization highly relativistic protons has been carried out. The importance the spin-flip mechanism is emphasized. It concluded that in analysis such inner-shell processes, an accurate description projectile-target interaction much more significance than accuracy wave functions atomic electrons.