A laser system for the parametric amplification of electromagnetic fields in a microwave cavity

Agnesi, Antonio; Braggio, C.; Carugno, G.; Valle, F. Della; Galeazzi, G.; Messineo, G.; Pirzio, Federico; Reali, G.; Ruoso, G.

doi:10.1063/1.3659950

Cited by 12 publications

(12 citation statements)

References 21 publications

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“…Another idea was to use effective semiconductor mirrors [81,[91][92][93][94], which can be created by strong periodic laser pulses. Unfortunately, attempts to implement this idea in practice [95] met severe difficulties due to high losses in semiconductor materials [96]. However, a new idea to use the resonance between the field mode and cyclotron transitions inside a semiconductor heterostructure in a strong and rapidly varying magnetic field was suggested recently in reference [97].…”

Section: Dynamical Casimir Effectmentioning

confidence: 99%

Perspective on Some Recent and Future Developments in Casimir Interactions

2020

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Here, we present a critical review of recent developments in Casimir physics motivated by discoveries of novel materials. Specifically, topologically nontrivial properties of the graphene family, Chern and topological insulators, and Weyl semimetals have diverse manifestations in the distance dependence, presence of fundamental constants, magnitude, and sign of the Casimir interaction. Limited studies of the role of nonlinear optical properties in the interaction are also reviewed. We show that, since many new materials have greatly enhanced the nonlinear optical response, new efficient pathways for investigation of the characteristic regimes of the Casimir force need to be explored, which are expected to lead to new discoveries. Recent progress in the dynamical Casimir effect is also reviewed and we argue that nonlinear media can open up new directions in this field as well.

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Section: Dynamical Casimir Effectmentioning

confidence: 99%

Perspective on Some Recent and Future Developments in Casimir Interactions

2020

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“…The infrared (λ 1064 nm) laser (L), described elsewhere [18], is set to deliver one 400 ns or more long-pulse train every second. The pulse width is τ ≈ 12 ps and each train contains ≈2000 of them, the pulse repetition rate being set at f 4.6 GHz.…”

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confidence: 99%

Generation of microwave radiation by nonlinear interaction of a high-power, high-repetition rate, 1064 nm laser in KTiOPO_4 crystals

2013

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We report measurements of microwave (RF) generation in the centimeter band accomplished by irradiating a nonlinear KTiOPO4 crystal with a home-made, infrared laser at 1064 nm as a result of optical rectification. The laser delivers pulse trains of duration up to 1 μs. Each train consists of several high-intensity pulses at an adjustable repetition rate of approximately 4.6 GHz. The duration of the generated RF pulses is determined by that of the pulse trains. We have investigated both microwave- and second harmonic generation as a function of the laser intensity and of the orientation of the laser polarization with respect to the crystallographic axes of KTP.

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“…The experiment was named MIR (Motion/Mirror Induced Radiation). However, despite that many difficulties were overcome [20][21][22][23], the effect was not observed.…”

Section: Introductionmentioning

confidence: 95%

Excitation of the Classical Electromagnetic Field in a Cavity Containing a Thin Slab with a Time-Dependent Conductivity

Dodonov

Додонов

2016

J Russ Laser Res

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An exact infinite set of coupled ordinary differential equations, describing the evolution of the modes of the classical electromagnetic field inside an ideal cavity, containing a thin slab with the time-dependent conductivity σ(t) and dielectric permittivity ε(t), is derived for the dispersion-less media. This problem is analyzed in connection with the attempts to simulate the so called Dynamical Casimir Effect in three-dimensional electromagnetic cavities, containing a thin semiconductor slab, periodically illuminated by strong laser pulses. Therefore it is assumed that functions σ(t) and δε(t) = ε(t) − ε(0) are different from zero during short time intervals (pulses) only. The main goal is to find the conditions, under which the initial nonzero classical field could be amplified after a single pulse (or a series of pulses). Approximate solutions to the dynamical equations are obtained in the cases of "small" and "big" maximal values of the functions σ(t) and δε(t). It is shown, that the single-mode approximation, used in the previous studies, can be justified in the case of "small" perturbations. But the initially excited field mode cannot be amplified in this case, if the laser pulses generate free carriers inside the slab. The amplification could be possible, in principle, for extremely high maximal values of conductivity and the concentration of free carries (the model of "almost ideal conductor"), created inside the slab, under the crucial condition, that the function δε(t) is negative. This result follows from a simple approximate analytical solution, and it is confirmed by exact numerical calculations. However, the evaluations show, that the necessary energy of laser pulses must be, probably, unrealistically high.

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A laser system for the parametric amplification of electromagnetic fields in a microwave cavity

Cited by 12 publications

References 21 publications

Perspective on Some Recent and Future Developments in Casimir Interactions

Perspective on Some Recent and Future Developments in Casimir Interactions

Generation of microwave radiation by nonlinear interaction of a high-power, high-repetition rate, 1064 nm laser in KTiOPO_4 crystals

Excitation of the Classical Electromagnetic Field in a Cavity Containing a Thin Slab with a Time-Dependent Conductivity

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