Possibility of Frequency Multiplication and Wave Amplification by Means of Some Relativistic Effects

Landecker, K.

doi:10.1103/physrev.86.852

Cited by 88 publications

(21 citation statements)

References 2 publications

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“…The solid red line indicates the edges of the incoming electromagnetic pulse which is perfectly reflected by the electron beam. Due to the double Doppler shift effect the frequency of the reflected pulse is upshifted and its amplitude amplified by a factor ≈ 4γ 2 e [24]. While the duration of the reflected pulse is shortened by the same factor, the number of cycles remains invariant.…”

Section: Fig 2 (A)mentioning

confidence: 99%

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

2019

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We propose a novel scheme for frequency-tunable sub-cycle electromagnetic pulse generation. To this end a pump electron beam is injected into an electromagnetic seed pulse as the latter is reflected by a mirror. The electron beam is shown to be able to amplify the field of the seed pulse while upshifting its central frequency and reducing its number of cycles. We demonstrate the amplification by means of 1D and 2D particle-in-cell simulations. In order to explain and optimize the process, a model based on fluid theory is proposed. We estimate that using currently available electron beams and terahertz pulse sources, our scheme is able to produce mJ-strong mid-infrared sub-cycle pulses.

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Section: Fig 2 (A)mentioning

confidence: 99%

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

2019

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“…A specular reflection can be afforded by a sufficiently dense relativistic electron cloud as suggested in Refs. 16,17; a less dense bunch of relativistic electrons causes the backward Thomson scattering as discussed in Refs. 18,19.…”

Section: Introductionmentioning

confidence: 98%

The flying mirror: future brightest x-ray and γ-ray source

et al. 2009

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An ultra-bright high-power X-ray and γ-ray source is proposed. A relativistic flying mirror reflects a counterpropagating electromagnetic radiation causing its frequency multiplication and intensification, while the role of the mirror is played by a solid-density thin plasma slab accelerating in the radiation pressure dominant regime. Frequencies of high harmonics generated at the flying mirror by a relativistically strong counter-propagating radiation undergo multiplication with the same factor as the fundamental frequency of the reflected radiation, approximately equal to the quadruple of the square of the mirror Lorentz factor. The theory of the reflectivity of a moving thin plasma slab is presented.

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“…A specular reflection can be afforded by a sufficiently dense relativistic electron cloud as suggested in Refs. [3,4]; a less dense bunch of relativistic electrons causes the backward Thomson scattering as discussed in Refs. [5].…”

Section: Introductionmentioning

confidence: 99%

Boosted High-Harmonics Pulse from a Double-Sided Relativistic Mirror

Esirkepov¹,

Bulanov²,

Kando³

et al. 2009

Phys. Rev. Lett.

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A novel ultra-bright high-intensity source of X-ray and gamma radiation is suggested. It is based on the double Doppler effect, where a relativistic flying mirror reflects a counter-propagating electromagnetic radiation causing its frequency multiplication and intensification, and on the inverse double Doppler effect, where the mirror acquires energy from an ultra-intense co-propagating electromagnetic wave. The role of the flying mirror is played by a high-density thin plasma slab accelerating in the radiation pressure dominant regime. Frequencies of high harmonics generated at the flying mirror by a relativistically strong counter-propagating radiation undergo multiplication with the same factor as the fundamental frequency of the reflected radiation, approximately equal to the quadruple of the square of the mirror Lorentz factor.

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Possibility of Frequency Multiplication and Wave Amplification by Means of Some Relativistic Effects

Cited by 88 publications

References 2 publications

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses

The flying mirror: future brightest x-ray and γ-ray source

Boosted High-Harmonics Pulse from a Double-Sided Relativistic Mirror

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