28 citations · 119 across the 16 of their papers we have counts for
16 papers
Goos-Haenchen lateral displacements and angular deviations: When these optical effects offset each other
Stefano De Leo, Luca Maggio, Moreno D'Ambrosio
For optical beams, transmitted by a right angle prism, the Goos-Haenchen shift can never be seen as a pure effect. Indeed, the lateral displacement, caused by the total internal re…
From the delay time in Quantum Mechanics to the Goos-Hänchen shift in Optics
Stefano De Leo, Leonardo Solidoro
Delay times in quantum mechanics always represented an intriguing challenge for physicists. Due to the fact that quantum mechanical experiments are, often, hard to be implemented,…
Angular deviations: From a cubic equation to a universal closed formula to determine the peak position of reflected and (upper) transmitted beams
Stefano De Leo, Alessia Stefano
Angular deviations and lateral displacements are optical effects widely investigated in literature. In this paper, by using the Taylor expansion of the Fresnel coefficients, we obt…
A modelling study across the Italian regions: Lockdown, testing strategy, colored zones, and skew-normal distributions. How a numerical index of pandemic criticality could be useful in tackling the CoViD-19
Stefano De Leo, Manoel P. Araujo
As Europe is facing the second wave of the CoViD-19 pandemic, each country should carefully review how it dealt with the first wave of outbreak. Lessons from the first experience s…
The quaternionic Goos-Haenchen shift
Stefano De Leo, Gisele C. Ducati
We investigate the lateral displacement of electronic waves when partially and totally reflected by a quaternionic potential. Following the analogy between Quantum Mechanics and Op…
Lateral shifts and angular deviations of Gaussian optical beams reflected by and transmitted through dielectric blocks: A tutorial review
Steafno De Leo, Gabriel G. Maia
In this work, we summarize the current state of understanding of lateral displacement and angular deviations of an optical beam propagating through dielectric blocks. In part I, th…
Power oscillations induced by the relative Goos-Haenchen phase
Manoel P. Araújo, Stefano De Leo, Gabriel G. Maia +1
By using an optical interferometer composed of a dielectric laser ellipsometer, to change the optical response of transverse electric and magnetic incident radiation, and two polar…
Experimental evidence of laser power oscillations induced by the relative Fresnel (Goos-Haenchen) phase
S. A. Carvalho, S. De Leo, J. A. O. Huguenin +2
The amplification of the relative Fresnel (Goos-Haenchen) phase by an appropriate number of total internal reflections and the choice of favorable incidence angles allow to observe…
Quaternionic perturbation theory
Stefano De Leo, Gisele Ducati, Caio Almeida Alves de Souza
In this paper we present a perturbation theory for constant quaternionic potentials. The effects of quaternionic perturbations are explicitly treated for bound states of hydrogen a…
The effect of the geometrical optical phase on the propagation of Hermite-Gaussian beams through transversal and parallel dielectric blocks
Silvania A. Carvalho, Stefano De Leo
When an optical beam propagates through dielectric blocks, its optical phase is responsible for the path of the beam. In particular, the first order Taylor expansion of the geometr…
Optimizing power oscillations in an ellipsometric system
Manoel P. Araújo, Stefano De Leo, Gabriel G. Maia
Ellipsometry is a powerful and well-established optical technique used in the characterisation of materials. It works by combining the components of elliptically polarized light in…
Optical weak measurements without removing the Goos-Haenchen phase
Manoel P. Araújo, Stefano De Leo, Gabriel G. Maia
Optical weak measurements are a powerful tool for measuring small shifts of optical paths. When applied to the measurement of the Goos-Haenchen shift, in particular, a special step…
Transversal symmetry breaking and axial spreading modification for Gaussian optical beams
Manoel Araujo, Stefano De Leo, Marina Lima
For a long time it was believed there was no reason to include the geometrical phase in studying the propagation of gaussian optical beams through dielectric blocks. This can be ju…
Maximal breaking of symmetry at critical angle and closed form expression for angular deviations of the Snell law
Manoel P. Araújo, Silvânia A. Carvalho, Stefano De Leo
A detailed analysis of the propagation of laser gaussian beams at critical angles shows in which conditions it is possible to maximize the breaking of symmetry in the angular distr…
Dirac solutions for quaternionic potentials
Stefano De Leo, Sergio Giardino
In this paper, the quaternionic Dirac equation is solved for quaternionic potentials, iV0+jW0. The study shows two different solutions. The first solution contains particles and an…
Resonance, multiple diffusion and critical tunneling for Gaussian lasers
Silvania A. Carvalho, Stefano De Leo
We present a detailed study of the gaussian laser propagation through a dielectric system composed by two right angle prisms. We investigate the transition between the spatial cohe…