Photon momentum transfer at water/air interfaces under total internal reflection

Schaberle, Fábio A.; Reis, Luis; Serpa, Carlos; Arnaut, Luı́s G.

doi:10.1088/1367-2630/ab098a

Cited by 14 publications

(13 citation statements)

References 26 publications

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“…Here ò αβμν is the Levi-Civita symbol. Equation (20) follows directly from the definition of the electromagnetic field tensor in terms of the four-potential in equation (5) through the Bianchi identity in the same way as in vacuum [33,47]. The form of Maxwell's equations derived above is standard, but these equations are coupled to the dynamical state of the medium via the atomic velocity and its relation to the permittivity and permeability of the medium.…”

Section: Euler-lagrange Equations For the Electromagnetic Fieldmentioning

confidence: 99%

“…Therefore, the MP theory provides a complementary approach to discover the momentum and angular momentum of light in different media. Thus, it may revive interest in experimental studies of the Abraham-Minkowski controversy [15][16][17][18][19][20][21][22][23][24][25][26][27] and its relation to angular momentum transfer of light [28][29][30][31][32] in the presence of dielectric media.…”

Section: Introductionmentioning

confidence: 99%

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Lagrangian dynamics of the coupled field-medium state of light

Partanen

Tulkki

2019

New J. Phys.

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In the recently introduced mass-polariton (MP) theory of light (Partanen et al 2017 Phys. Rev. A 95 063850), the optical force of light drives in a medium forward an atomic mass density wave. In this work, we present the Lagrangian formulation of the MP theory starting directly from the principle of least action and the well-known Lagrangian densities of the electromagnetic field and the medium within the special theory of relativity. The Lagrangian densities and the resulting Euler-Lagrange equations lead directly and without any further postulates to the unique expression of the optical Abraham force that dynamically couples the electromagnetic field and the medium in the MP theory of light. The field-medium coupling is symmetric and bi-directional and it fulfills the law of action and counteraction. The coupled dynamical equations also enable the exact description of the very small kinetic energy of the medium as a part of the total energy of the coupled state of light. Thus, the Lagrangian formulation of the present work is a complementary approach to Lorentz covariance properties of the MP theory discussed in our recent work (Partanen and Tulkki 2019 Phys. Rev. A 99 033852). We show how the coupled dynamical equations of the field and the medium can be solved analytically for a Gaussian light pulse. It is astonishing how the simple analytic results for the dynamical equations, the optical force, and the stress-energy-momentum tensor of the MP theory follow ab initio from the Lagrangian densities that have been well known for almost a century.

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Section: Euler-lagrange Equations For the Electromagnetic Fieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lagrangian dynamics of the coupled field-medium state of light

Partanen

Tulkki

2019

New J. Phys.

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“…Methodologically, this class was developed from the answers given by the students to questions being proposed, with the speaker guiding the students to the correct answer. Lively examples of recent research by the speaker were given whenever possible, as for example the particle-like nature of light (Schaberle, Reis, Serpa, & Arnaut, 2019). Chemical Bonding was the main topic of the lesson number four.…”

Section: Project Descriptionmentioning

confidence: 99%

Molecular School – a pre-university chemistry school

Nogueira

Silva

Mendes

et al. 2021

Chemistry Teacher International

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The planning, implementation and results of the first edition of the Molecular School are presented, as the first pre-university school project held in Portugal. This is not, however, a strictly Portuguese project, since it can be replicated in other countries at the secondary school level, with minor adjustments. Herein, the pilot edition of Molecular School is detailed and discussed, where 36 secondary school students have participated. The plan for the second edition, to be held in the first semester of 2021, with the confirmed participation of around 100 students, is further presented. Briefly, the project is divided in two modules: theoretical and laboratory work. These were prepared in a complementary way and performed to achieve the same purpose: deliver a wider vision of what chemistry really is. Hence, the classes were designed having in mind the applications that chemistry has in our everyday life, in the different academic research fields and in industry. A better preparation and training at the laboratory level was also a goal of this project. The enthusiasm, happiness and the motivation shown by the students, and their eagerness to participate in the future editions of the Molecular School, were clear signs of this project success.

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“…11 In the case of continuous media, the experiments studying the momentum transfer between the electromagnetic field and the medium have mainly focused on the interaction of light with liquids. [12][13][14][15][16][17][18] However, some recent experiments have also investigated mechanical effects of the momentum transfer of light in solids. 19,20 In the recent experiments by Požar et al, 19,20 the small elastic waves of atoms generated by light reflected from a mirror were experimentally measured.…”

Section: Introductionmentioning

confidence: 99%

Design of an experimental setup for the measurement of light-driven atomic mass density waves in a silicon crystal

Partanen

Tulkki

2019

Optical Trapping and Optical Micromanipulation XVI

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The recently introduced mass-polariton (MP) theory of light describes light in a medium as a coupled state of the field and matter [Phys. Rev. A 95, 063850 (2017)]. In the MP theory, the optical force density drives forward an atomic mass density wave (MDW) that accompanies electromagnetic waves in a medium. The MDW is necessary for the fulfilment of the conservation laws and the Lorentz covariance of light. In silicon at wavelength λ 0 = 1550 nm, the atomic MDW carries 92% of the total momentum and angular momentum of light. The MDW of a light pulse having field energy E propagating in a dielectric also transfers a net mass equal to δM = (n p n g − 1)E/c 2 , where n p and n g are the phase and group refractive indices. In this work, we present a schematic experimental setup for the measurement of the MDW in a silicon crystal. This setup overcomes many challenges that have been present in previously introduced setups and that have made the experimental observation of the MDW effect difficult due to its smallness in comparison with other effects, such as the momentum transfer by absorption and reflections. The present setup also overcomes challenges with elastic relaxation effects while extending possible measurement time scales beyond the time scale of sound waves in the setup geometry. For the proposed setup, we also compare the predictions of the MP theory of light to the predictions of the conventional Minkowski theory, where the total momentum of light is carried by the electromagnetic field. We also aim at optimizing experimental studies of the MDW effect using the proposed setup.

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Photon momentum transfer at water/air interfaces under total internal reflection

Cited by 14 publications

References 26 publications

Lagrangian dynamics of the coupled field-medium state of light

Lagrangian dynamics of the coupled field-medium state of light

Molecular School – a pre-university chemistry school

Design of an experimental setup for the measurement of light-driven atomic mass density waves in a silicon crystal

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