Investigation of the Spectrum of Resonance Fluorescence Induced by a Monochromatic Field

Wu, Fuyong; Grove, Robert E.; Ezekiel, S.

doi:10.1103/physrevlett.35.1426

Cited by 372 publications

(115 citation statements)

References 9 publications

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“…In parallel to this process, the inelastic component of the resonance fluorescence is expected to increase and give rise to a triplet spectrum as first described by B. Mollow in 1969 [20]. The so-called Mollow triplet has been indeed examined in various gaseous systems [21,22], but its direct observation has turned out to be elusive in the solid state.…”

Section: Measurement Of the Mollow Tripletmentioning

confidence: 99%

Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence

et al. 2007

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Single dye molecules at cryogenic temperatures display many spectroscopic phenomena known from free atoms and are thus promising candidates for fundamental quantum optical studies. However, the existing techniques for the detection of single molecules have either sacrificed the information on the coherence of the excited state or have been inefficient. Here we show that these problems can be addressed by focusing the excitation light near to the absorption cross section of a molecule. Our detection scheme allows us to explore resonance fluorescence over 9 orders of magnitude of excitation intensity and to separate its coherent and incoherent parts. In the strong excitation regime, we demonstrate the first observation of the Mollow triplet from a single solid-state emitter. Under weak excitation we report the detection of a single molecule with an incident power as faint as 150 attoWatt, paving the way for studying nonlinear effects with only a few photons. * Electronic address: vahid.sandoghdar@ethz.ch 1 arXiv:0707.3398v1 [quant-ph]

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Section: Measurement Of the Mollow Tripletmentioning

confidence: 99%

Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence

et al. 2007

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“…This spectrum, as a function of the laser's intensity and its detuning from the two-level resonance, has been the subject of a number of theoretical papers (Mollow 1969, 1975, Herrmann et al 1973, Agarwal 1974, Hassan and Bullough 1975, Smithers and Freedhoff 1974, Carmichael and Walls 1975, Cohen-Tannoudji 1975, Swain 1975, Kimble and Mandel 1976. This spectrum has also been measured in four different laboratories in the past three years (Schuda et al 1974, Walther 1975, Wu et al 1975, Gibbs and Venkatesan 1976. In this paper, we derive in detail the expression for the spectrum of the scattered light as measured by means of a Fabry-Perot interferometer, using the results of a previous quantum electrodynamic calculation for the relevant correlation function (Renaud et al 1976, to be referred to as RWS I).…”

Section: Introductionmentioning

confidence: 99%

Nonstationary two-level resonance fluorescence

Renaud

Whitley

Stroud

1977

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

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Abstract. Analytic expressions are obtained for the spectrum of the light scattered when a collimated atomic beam is illuminated at right angles to its path by a cw monochromatic laser beam tuned to resonance with a two-level transition. The spectra. as would be determined by a Fabry-Perot interferometer, vary depending on the portion of the interaction region from which the scattered light emanates. The spectrum of the light from a finite sub-region of the interaction volume is described as a function of the location and length of the sub-region, and of the intensity and frequency of the laser. Several interesting features related to the turn-on of the interaction as well as to the finite observation interval are found.

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“…Historically, their effects were first appreciated in microwave spectroscopy pump-probe experiments by Autler and Townes [20] in 1955, and soon came to be known as the ac Stark effect. Through the late 1960s and 1970s, significant work on sideband amplification [21], resonance fluorescence [22,23], and the Mollow scattering triplet [24][25][26][27][28] culminated in the "dressed" description of atoms in strong fields [29]. In the 1980s, the PP nonlinearity was cast in the language of nonlinear optics and applications such as four-wave mixing [30], phase conjugation [31], and optical bistability [14] were explored.…”

Section: Introductionmentioning

confidence: 99%

Single-mode instability in standing-wave lasers: The quantum cascade laser as a self-pumped parametric oscillator

et al. 2016

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We report the observation of a clear single-mode instability threshold in continuous-wave Fabry-Perot quantum cascade lasers (QCLs). The instability is characterized by the appearance of sidebands separated by tens of free spectral ranges (FSR) from the first lasing mode, at a pump current not much higher than the lasing threshold. As the current is increased, higher-order sidebands appear that preserve the initial spacing, and the spectra are suggestive of harmonically phase-locked waveforms. We present a theory of the instability that applies to all homogeneously broadened standing-wave lasers. The low instability threshold and the large sideband spacing can be explained by the combination of an unclamped, incoherent Lorentzian gain due to the population grating, and a coherent parametric gain caused by temporal population pulsations that changes the spectral gain line shape. The parametric term suppresses the gain of sidebands whose separation is much smaller than the reciprocal gain recovery time, while enhancing the gain of more distant sidebands. The large gain recovery frequency of the QCL compared to the FSR is essential to observe this parametric effect, which is responsible for the multiple-FSR sideband separation. We predict that by tuning the strength of the incoherent gain contribution, for example by engineering the modal overlap factors and the carrier diffusion, both amplitude-modulated (AM) or frequency-modulated emission can be achieved from QCLs. We provide initial evidence of an AM waveform emitted by a QCL with highly asymmetric facet reflectivities, thereby opening a promising route to ultrashort pulse generation in the mid-infrared. Together, the experiments and theory clarify a deep connection between parametric oscillation in optically pumped microresonators and the single-mode instability of lasers, tying together literature from the last 60 years.

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Investigation of the Spectrum of Resonance Fluorescence Induced by a Monochromatic Field

Cited by 372 publications

References 9 publications

Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence

Efficient coupling of photons to a single molecule and the observation of its resonance fluorescence

Nonstationary two-level resonance fluorescence

Single-mode instability in standing-wave lasers: The quantum cascade laser as a self-pumped parametric oscillator

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