Carrier-wave Rabi flopping: role of the carrier-envelope phase

Mücke, Oliver D.; Tritschler, T.; Wegener, Martin; Morgner, Uwe; Kärtner, Franz X.; Khitrova, G.; Gibbs, H. M.

doi:10.1364/ol.29.002160

Cited by 48 publications

(29 citation statements)

References 12 publications

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“…The CEP controllability of electron dynamics in the case of resonant excitation, ω 0 ∼ E g , has so far mostly been studied in the context of carrier-wave Rabi flopping (CWRF) [14][15][16][17] , where the motion of charge carriers within bands was neglected, as well as in the context of perturbative ω + 2ω interference 18,19 , where a relatively weak field limits the scope of the intraband motion.…”

Section: Introductionmentioning

confidence: 99%

Strong-Field Resonant Dynamics in Semiconductors

et al. 2016

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We predict that a direct bandgap semiconductor (GaAs) resonantly excited by a strong ultrashort laser pulse exhibits a novel regime: kicked anharmonic Rabi oscillations (KARO). In this regime, Rabi oscillations are strongly coupled to intraband motion, and interband transitions mainly take place during short times when electrons pass near the Brillouin zone center where electron populations undergo very rapid changes. Asymmetry of the residual population distribution induces an electric current controlled by the carrier-envelope phase. The predicted effects are experimentally observable using photoemission and terahertz spectroscopies.

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Section: Introductionmentioning

confidence: 99%

Strong-Field Resonant Dynamics in Semiconductors

et al. 2016

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“…It should be noted that the period of these CEP-dependent signals is 2π . This is different from the interference case in symmetric media [15,20,21], in which the CEP-dependent period is π . To illustrate the underlying physics, we calculate the dipole-induced emitted field spectra (Ê em (ω) ∝ FFT − ∂P x ∂t [44]) from the medium at the same propagation distance as in figure 1.…”

Section: Theoretical Modelmentioning

confidence: 75%

“…In the resonant interaction regime, the ionization can be ignored due to the lower laser intensity. However, the CEP-dependent signals can still be found in the transmitted spectra [15,[20][21][22]. Previous investigations in inversion-symmetric media have shown that these CEPdependent signals are originated from the interference effects between different harmonic components.…”

Section: Introductionmentioning

confidence: 99%

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Carrier-envelope phase-dependent transmitted spectra in inversion-asymmetric media with permanent dipole moments

Yang¹,

Xia²,

Zhang³

et al. 2009

J. Phys. B: At. Mol. Opt. Phys.

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We investigate the transmitted spectra of a few-cycle ultrashort pulse in an inversion-asymmetric medium with a permanent dipole moment (PDM). Our results show that even-order harmonics can be generated in this medium. Moreover, the generated even-order harmonics depend strongly on the carrier-envelope phase (CEP) of initial incident few-cycle ultrashort pulses. Physical analysis of the re-emitted spectra of the medium reveals that the CEP-dependent spectral effect is originated from the inversion-asymmetric structure and the corresponding PDM effects: two-photon transition dominates in the nonlinear process and further induces the generations of the even-order harmonics. Furthermore, the orientation relation between the electric field peak of the pulse and the PDM results in even-order harmonic generations depending on the CEP.

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“…In another embodiment, the laser inducing the Rabi oscillation is self-modulated by nanosecond duration pulses generating sidebands in Na vapor at ± 3.5 meV 16,17 . Thin GaAs films 18,19 have been used recently to demonstrate Rabi shifting on the order of the carrier frequency in the optical regime using a carrier-envelope phase stabilized femtosecond pulse. We report here a Rabi shift on the order of 100 meV using a micro plasma driven by a picosecond laser pulse with large detuning from resonant states in the plasma atoms (' ~2% Z c ).…”

Section: Introductionmentioning

confidence: 99%

Tunable broadband optical generation via giant Rabi shifting in micro-plasmas

Compton

Filin

Romanov

et al. 2010

Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX

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Broadband, coherent radiation in the optical frequency range is generated using micro-plasma channels in atmospheric gases in a pump-probe experiment. A micro-plasma medium is created in a gas by a focused intense femtosecond pump pulse. A picosecond probe pulse then interacts with this micro-plasma channel, producing broad, coherent sidebands that are associated with luminescence lines and are red-and blue-shifted with respect to the laser carrier frequency. These sidebands originate from the induced Rabi oscillations between pairs of excited states that are coupled by the probe pulse. These excited states become populated in the process of plasma cooling. Thus, the sideband radiation intensity tracks the micro-plasma evolution. The sidebands incorporate Rabi shifts corresponding to varying value of the electric field magnitude in the probe pulse: this makes them broad and malleable to tuning. The intensity of the probe beam ~ 10 10 W cm -2 , creates a maximum sideband shift of > 90 meV from the carrier frequency, resulting in an effective bandwidth of 200 meV. The sidebands may be effectively controlled by the intensity and temporal profile of the probe pulse. The giant Rabi shift is both tunable and coherent over a wide range of frequencies and over a wide range of atomic transitions. The fact that the coherence is observed in a micro plasma demonstrates that Rabi cycling is possible at high temperature with moderately high laser intensities (10 10 W cm -2 ) as long as transitions close to the driving frequency (' ~ 2% Z c ) are available.

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Carrier-wave Rabi flopping: role of the carrier-envelope phase

Cited by 48 publications

References 12 publications

Strong-Field Resonant Dynamics in Semiconductors

Strong-Field Resonant Dynamics in Semiconductors

Carrier-envelope phase-dependent transmitted spectra in inversion-asymmetric media with permanent dipole moments

Tunable broadband optical generation via giant Rabi shifting in micro-plasmas

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