Solid-state carrier-envelope phase stabilization via quantum interference control of injected photocurrents

Roos, Peter A.; Li, Xiaoqin; Smith, Ryan P.; Pipis, Jessica A.; Fortier, Tara M.; Cundiff, Steven T.

doi:10.1364/ol.30.000735

Cited by 35 publications

(25 citation statements)

References 19 publications

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“…The ability to measure the CE-phase of a few-cycle optical pulse [66] has important applications in attosecond science, where it plays a critical role in processes such as VUV higher-harmonic generation [67,68], light-induced non-sequential double ionization [69], Gouy phase observation [70] and quantum interference in photo-currents [71]. Given that the complex electric field envelope can be measured using a range of methods (e.g.…”

Section: Determination Of the Carrier-envelope Phase For Few-cycle Pumentioning

confidence: 99%

Broadband THz emission from gas plasmas induced by femtosecond optical pulses: From fundamentals to applications

Roskos¹,

Thomson

Kreß

et al. 2007

Laser & Photonics Reviews

436

196

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We review the generation of broadband THz radiation from femtosecond photo-induced gas plasmas, with an emphasis on the highly efficient "AC-bias" case where the plasma is generated and driven by a superposition of fundamental and second-harmonic optical fields. The dependence on experimental parameters such as pulse energy, air pressure, polarization and focusing are presented, and compared to the predictions from semi-quantitative models for the THz generation process, namely (i) a microscopic photocurrent model and (ii) a fourwave mixing model. We also employ these models to the case of few-cycle pulses, where the observed THz emission is related directly to the carrier-envelope phase of the pulses, and hence provides a mechanism with which to measure this phase. +THz generation in a photoinduced plasma using both fundamental and second-harmonic optical fields.

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Section: Determination Of the Carrier-envelope Phase For Few-cycle Pumentioning

confidence: 99%

Broadband THz emission from gas plasmas induced by femtosecond optical pulses: From fundamentals to applications

Roskos¹,

Thomson

Kreß

et al. 2007

Laser & Photonics Reviews

436

196

View full text Add to dashboard Cite

show abstract

“…Many of the phenomena studied depend critically on the CE phase. Examples include the dynamics of above-threshold ionisation (ATI) 4 , light-induced non-sequential double ionisation 16 , Gouy phase observation 17 , and quantum interference in photocurrents 18 . An exciting prospect is the application of the CE phase as a coherent-control tool, e.g., to steer bound electrons in molecules 19 .…”

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confidence: 99%

Determination of the carrier-envelope phase of few-cycle laser pulses with terahertz-emission spectroscopy

et al. 2006

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PACS numbers: 62.65.Re, 72.30.+q The availability of few-cycle optical pulses opens a window to physical phenomena occurring on the attosecond time scale. In order to take full advantage of such pulses, it is crucial to measure 1,2,3,4 and stabilise 1,2 their carrierenvelope (CE) phase, i.e., the phase difference between the carrier wave and the envelope function. We introduce a novel approach to determine the CE phase by down-conversion of the laser light to the terahertz (THz) frequency range via plasma generation in ambient air, an isotropic medium where optical rectification (down-conversion) in the forward direction is only possible if the inversion symmetry is broken by electrical or optical means 5,6,7,8,9,10 . We show that few-cycle pulses directly produce a spatial charge asymmetry in the plasma. The asymmetry, associated with THz emission, depends on the CE phase, which allows for a determination of the phase by measurement of the amplitude and polarity of the THz pulse.The ability to measure 1,2,3,4 and stabilise 1,2 the CE phase, which is also often named absolute phase and defined by Eq. 4 (Methods), of few-cycle laser pulses, i.e., the ability to completely control ultrashort high-intensity electromagnetic fields, provides access to a whole series of novel physical phenomena, and creates options for their coherent control. An example is the manipulation of the electron recombination process during "recollision" 11 , with the aim to fully control the generation of both intense VUV higher-harmonic radiation 12,13 as well as of high-intensity single attosecond pulses. The progress has led to the establishment of a new field of research, "attosecond science", with highlights of recent work including the efficient tomography of molecular wave functions by coherent diffraction of rescattered electrons 14 as well as the preparation of high-intensity, monochromatic femtosecond electron beams evolving from "bubble generation" 15 . Many of the phenomena studied depend critically on the CE phase. Examples include the dynamics of above-threshold ionisation (ATI) 4 , light-induced non-sequential double ionisation 16 , Gouy phase observation 17 , and quantum interference in photocurrents 18 . An exciting prospect is the application of the CE phase as a coherent-control tool, e.g., to steer bound electrons in molecules 19 .The state-of-the-art method for CE phase determination of amplified laser pulses is stereo ATI 20,21 . In this letter, we present a new approach based on downconversion into the THz frequency range in a lasergenerated ambient air-plasma. The concept relies on the detection of the THz electromagnetic pulses emitted during photo-ionization of the air by the focussed few-cycle pulses. The method is easy to apply, because it does not require a vacuum chamber and relies on standard optoelectronic THz detection technology 5,8 .THz-pulse emission from laser-generated plasmas has been investigated in the past, but only with much longer laser pulses. There, the transient electric currents responsibl...

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“…The photodiode signal can also be used to directly modulate the pump power [8] or to drive an acousto-optic modulator external to the laser cavity [9]. In addition to the f-to-2f scheme, semiconductor-based solutions also exist for generating the beat note [10]. CEP detection at low power levels and narrow bandwidths can be done using linear interferometry [11].…”

Section: Introductionmentioning

confidence: 99%

High-speed carrier-envelope phase drift detection of amplified laser pulses

Fordell¹,

Miranda²,

Arnold³

et al. 2011

Opt. Express

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Solid-state carrier-envelope phase stabilization via quantum interference control of injected photocurrents

Cited by 35 publications

References 19 publications

Broadband THz emission from gas plasmas induced by femtosecond optical pulses: From fundamentals to applications

Broadband THz emission from gas plasmas induced by femtosecond optical pulses: From fundamentals to applications

Determination of the carrier-envelope phase of few-cycle laser pulses with terahertz-emission spectroscopy

High-speed carrier-envelope phase drift detection of amplified laser pulses

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