Absolute phase effect in ultrafast optical responses of metal nanostructures

Stockman, Mark I.; Hewageegana, Prabath

doi:10.1007/s00339-007-4105-7

Cited by 21 publications

(9 citation statements)

References 13 publications

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“…To solve Eq. (12) for any other direction one can replace the field magnitude A 0 by A 0 cosα where α is an angle between vectors K in and A.…”

Section: Numerical Examplementioning

confidence: 98%

“…There have been few studies of laserinitiated processes in metals with the use of such short pulses [9]. The case with a nonzero component of the wave electric field normal to the surface has been recently considered in a number of publications [10][11][12][13][14][15][16]. Their goal was to study electron tunneling through the instantaneous barrier set by the electric field.…”

Section: Introductionmentioning

confidence: 98%

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Electron excitation in thin metal films due to the magnetic field of ultrashort laser pulses

Lugovskoy

Bray

2014

J. Opt. Soc. Am. B

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The behavior of the conduction-band electrons in a metal film subjected to the action of an ultrashort laser pulse at normal incidence is analyzed quantum-mechanically. The pulse duration is assumed to be shorter than the electron mean free time. It is shown for the first time that electrons in the film can be excited resonantly to the higher-energy quantum well levels due to the action of the magnetic field of the wave. The numerical analysis is conducted for an electron which is initially in the lowest quantum well and has a quasi-momentum directed along the electric field. It is shown that the excitation probability due to the magnetic-field excitation mechanism can be even larger than the excitation probability due to the inverse bremsstrahlung in electron-phonon collisions.

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“…To solve Eq. (12) for any other direction one can replace the field magnitude A 0 by A 0 cosα where α is an angle between vectors K in and A.…”

Section: Numerical Examplementioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Electron excitation in thin metal films due to the magnetic field of ultrashort laser pulses

Lugovskoy

Bray

2014

J. Opt. Soc. Am. B

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“…For details on the computations, see [102]. In addition to the nanostructure configuration, the CEP of the few-cycle driving laser field is expected to offer an additional and important degree of control over the response of the localized plasmonic field enhancement [79,107]. The corresponding plasmonic field responses were determined for the symmetric and asymmetric ellipsoid configurations with CEPs, ' CE D 0 and π/2.…”

Section: Tailoring Of Nanoplasmonic Field Enhancement For Hhgmentioning

confidence: 99%

Attosecond Nanophysics

Süßmann

Stebbings

Zherebtsov

et al. 2014

Attosecond and XUV Physics

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IntroductionUltrafast control of electronic motion in isolated atoms with light fields has led to the birth of attosecond pulses [1,2]. Waveform-controlled, optical, few-cycle laser pulses are powerful tools to steer electrons on subfemtosecond timescales and have been successfully applied to control the electron emission from atoms [3] and the electron localization in molecules [4]. The realization of a similar level of control of the electron motion in nanocircuits has the potential to revolutionize modern electronics by enabling significantly higher computation and communication speeds [5,6].Worldwide communication relies on optical fiber networks. Data encoding and decoding, however, involves the transformation of photon-based information within the optical fibers to electronic information and vice versa and is thus the current bottleneck for ultrafast communication and information processing. Lightwavecontrolled nanocircuits (lightwave nanoelectronics) [7] are expected to reach petahertz operating frequencies which would remove the bottleneck in conventional communication technology by enabling all-optical data processing and communication. The key challenges on the way to lightwave nanoelectronics are (1) the control of electrodynamics in nanostructured materials on subcycle timescales and (2) the ability to monitor the resulting currents in nanostructured circuits with attosecond time and nanometer spatial resolution [6,[8][9][10][11]. The development and utilization of attosecond metrologies for the control and observation of ultrafast electron dynamics in nanosystems is therefore an issue with far-reaching implication. This chapter discusses selected key concepts and fundamental experiments in this area of attosecond nanophotonics.The central objective of attosecond nanophotonics is the utilization of the widely tunable optical properties of nanostructured materials. This idea, which has a long history, might be illustrated best by the special optical phenomena arising from small nanoparticles. Without deeper insight, already the makers of color-stained glass church windows in the middle ages used the properties of metallic nanoparAttosecond and XUV Physics, First Edition. Edited by Thomas Schultz and Marc Vrakking.

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“…Unfortunately, the decreased nonlinearity leads to a less sensitive carrier-envelope phase (CEP) modulation effect 27 —the fundamental of attosecond control and measurement technology. Thus, great efforts have been devoted to achieving highly sensitive CEP modulation of the electronics signal by using alternative methods, such as extracting the high-order part in the electron energy spectrum 8,31,32 .…”

Section: Introductionmentioning

confidence: 99%

Extreme nonlinear strong-field photoemission from carbon nanotubes

Chen

Guan

et al. 2019

Nat Commun

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Strong-field photoemission produces attosecond (10−18 s) electron pulses that are synchronized to the waveform of the incident light. This nonlinear photoemission lies at the heart of current attosecond technologies. Here we report a new nonlinear photoemission behaviour—the nonlinearity in strong-field regime sharply increases (approaching 40th power-law scaling), making use of sub-nanometric carbon nanotubes and 800 nm pulses. As a result, the carrier-envelope phase sensitive photoemission current shows a greatly improved modulation depth of up to 100% (with a total modulation current up to 2 nA). The calculations reveal that the behaviour is an interplay of valence band optical-field emission with charge interaction, and the nonlinear dynamics can be tunable by changing the bandgap of carbon nanotubes. The extreme nonlinear photoemission offers a new means of producing extreme temporal-spatial resolved electron pulses, and provides a new design philosophy for attosecond electronics and photonics.

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Absolute phase effect in ultrafast optical responses of metal nanostructures

Cited by 21 publications

References 13 publications

Electron excitation in thin metal films due to the magnetic field of ultrashort laser pulses

Electron excitation in thin metal films due to the magnetic field of ultrashort laser pulses

Attosecond Nanophysics

Extreme nonlinear strong-field photoemission from carbon nanotubes

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