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Pellegrini, Vittorio; Parlangeli, A.; Börger, Marco; Atanasov, R.; Beltram, Fabio; Vanzetti, L.; Franciosi, A.

doi:10.1103/physrevb.52.r5527

Cited by 12 publications

(5 citation statements)

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“…For simplicity, we shall suppose that the cavity mirrors do not confine light at 2 , so that the coupling of the exciton to the incident probe beam is not affected by the photonic mode structure of the cavity. An experimental observation of such effects clearly requires some violation of parity selection rules, in a way to make the excitonic transition allowed for both one-photon and twophoton absorption: a single quantum well under a strong static electric field perpendicular to the quantum well layers 35 or an asymmetric quantum well [36][37][38] structures could be good choices.…”

Section: Two-photon Optical Stark Effect: Probing the Dressed Systemmentioning

confidence: 99%

“…35 But an externally applied static-electric field is not the only solution: several papers have appeared which investigate the problem of breaking the symmetry of a material system in order to make some optical susceptibility nonvanishing. In particular, asymmetrically grown quantum wells 36,37 and indirect excitons in polytype double-quantumwell structures 38 have recently received much interest.…”

Section: ͑510͒mentioning

confidence: 99%

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Two-photon Rabi splitting and optical Stark effect in semiconductor microcavities

Carusotto

Rocca

1999

Phys. Rev. B

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We have studied two-photon nonlinear optical effects arising in a microcavity geometry from resonant two-photon absorption or second-harmonic generation. The transmission spectrum of the cavity is shown to depend on light intensity according to a simple two-level picture with an intensity-dependent coupling: at resonance the system exhibits a two-photon Rabi splitting. The absorption spectrum of a weak probe beam in a pumped cavity is found to strongly depend on pump intensity and detuning; the resulting effect is a sort of two-photon analogue of the usual optical Stark effect. For moderate pump intensities a two-level picture with a pump-dependent coupling can account for the main results, while at higher intensities new unexpected features show up; in particular, we predict the appearance of gain in well-determined spectral regions due to hyper-Raman processes. Finally, we have shown how the coupling coefficients appearing in our formalism can be obtained from a detailed knowledge of the material and geometrical properties of a specific system. For illustrative purposes, we have estimated the required light intensities using realistic data for a GaAs-based semiconductor microcavity. ͓S0163-1829͑99͒00932-7͔

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Section: Two-photon Optical Stark Effect: Probing the Dressed Systemmentioning

confidence: 99%

Section: ͑510͒mentioning

confidence: 99%

Two-photon Rabi splitting and optical Stark effect in semiconductor microcavities

Carusotto

Rocca

1999

Phys. Rev. B

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“…Since the pioneering work on second harmonic generation by Franken [3], a continuous development in this field has produced experimental and theoretical studies of harmonic generation in solids [4][5][6][7], molecules [8] and atoms [9,10], up to very high orders [11,12] in the last case.…”

Section: Introductionmentioning

confidence: 99%

Asymptotic behaviour and general properties of harmonic generation susceptibilities

Bassani

Lucarini

2000

Eur. Phys. J. B

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We use the Kubo response function formalism to derive the asymptotic behaviour of the harmonic generation susceptibilities to all orders n. The results show a stringent correspondence with the ones previously obtained from the classical anharmonic oscillator model. They are characterized by a ω −2n−2 dependence and a coefficient proportional to the trace of the (n + 1)th derivative of the potential energy on the equilibrium density matrix. Using the above results we derive new Kramers-Krönig relations and sum rules for all orders of harmonics susceptibilities.

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“…An excitonic peak was also observed in second harmonic generation at half the band gap of ZnCdSe/ZnSe asymmetric coupled quantum wells. 20 Nevertheless, to the best of our knowledge, no application of quantum well interband second order nonlinearity to waveguide frequency conversion has been demonstrated so far. In this letter, we experimentally demonstrate QPM SESHG in a waveguide with periodically reversed asymmetric GaAs/AlGaAs quantum wells, using the concept of ''quantum well domain structures'' introduced by Khurgin,6 in the geometry proposed by Harshman et al 8 By periodically reversing the orientation of the wells, a 30-fold enhancement in the peak conversion efficiency is obtained with respect to a nonreversed sample.…”

mentioning

confidence: 99%

Quasiphase matched surface emitting second harmonic generation in periodically reversed asymmetric GaAs/AlGaAs quantum well waveguide

Fiore

Beaulieu

Janz

et al. 1997

Applied Physics Letters

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Interband second-harmonic generation inZn1−xCd

Cited by 12 publications

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Two-photon Rabi splitting and optical Stark effect in semiconductor microcavities

Two-photon Rabi splitting and optical Stark effect in semiconductor microcavities

Asymptotic behaviour and general properties of harmonic generation susceptibilities

Quasiphase matched surface emitting second harmonic generation in periodically reversed asymmetric GaAs/AlGaAs quantum well waveguide

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