Search Results - "LIPPI, G. L"

Dynamical Buildup of Lasing in Mesoscale Devices by Wang, T., Puccioni, G. P., Lippi, G. L.

“…The classical description of laser field buildup, based on time-averaged photon statistics of Class A lasers, rests on a statistical mixture of coherent and…”
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Phase instability in semiconductor lasers by Gil, L, Lippi, G L

“…For many years, the apparent absence of a phase instability has characterized lasers as peculiar nonlinear oscillators. We show that this unusual feature is…”
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Stochastic Simulator for modeling the transition to lasing by Puccioni, G P, Lippi, G L

“…A Stochastic Simulator (SS) is proposed, based on a semiclassical description of the radiation-matter interaction, to obtain an efficient description of the…”
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Photon thermalization and a condensation phase transition in an electrically pumped semiconductor microresonator by Barland, S, Azam, P, Lippi, G L, Nyman, R A, Kaiser, R

“…We report on an experimental study of photon thermalization and condensation in a semiconductor microresonator in the weak-coupling regime. We measure the…”
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Threshold in nanolasers: definitions, measurement, modelling and applications - Invited Paper by Lippi, G.L.

“…Coherence, associated to the crossing of laser threshold, identifies lasing and is the defining property for most of the current laser applications. It is…”
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Photon bursts at lasing onset and modelling issues in micro-VCSELs by Wang, T., Puccioni, G. P., Lippi, G. L.

“…Spontaneous photon bursts are observed in the output collected from a mesoscale semiconductor-based laser near the lasing threshold. Their appearance is…”
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Acoustofluidic interferometric device for rapid single-cell physical phenotyping by Mejía Morales, J., Glynne-Jones, P., Vassalli, M., Lippi, G. L.

“…High-throughput single-cell analysis based on physical properties (such as morphology or mechanics) is emerging as a powerful tool to inform clinical research,…”
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Critical slowing down at a bifurcation by Tredicce, J. R., Lippi, G. L., Mandel, Paul, Charasse, B., Chevalier, A., Picqué, B.

“…Critical slowing down near a bifurcation or limit point leads to a dynamical hysteresis that cannot be avoided by sweeping a control parameter slowly through…”
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External versus self-induced ac Stark shift by Gil, L., Lippi, G.L.

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The Gouy phase shift, the average phase lag of Fourier components of Hermite–Gaussian modes and their application to resonance conditions in optical cavities by Ackemann, T., Grosse-Nobis, W., Lippi, G.L.

“…An interpretation of the Gouy phase shift is proposed which relates the finite Gouy phase reduction of a Gaussian mode to the averaged phase retardation of the…”
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Nonlinear lensing mechanisms in a cloud of cold atoms by LABEYRIE, G, GATTOBIGIO, G. L, CHANELIERE, T, LIPPI, G. L, ACKEMANN, T, KAISER, R

“…We present an experimental study of nonlinear lensing of near-resonant light by a cloud of laser-cooled rubidium atoms, specifically aimed at understanding the…”
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Phase transition in a radiation-matter interaction with recoil and collisions by Perrin, M, Lippi, G L, Politi, A

“…The standard model introduced to describe the collective atomic recoil of an ensemble of atoms interacting with a strong electromagnetic field has been here…”
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Fulfilling causality: two numerical techniques for accurately computing the propagation of independent laser beams through a nonlinear medium by Perrin, M., Gil, L., Lippi, G.L.

“…We identify the origin of some numerical difficulties related to causality which appear in the simulation of transport equations. Two numerical techniques are…”
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Nonlinear beam shaping by a cloud of cold Rb atoms by LABEYRIE, G, ACKEMANN, T, KLAPPAUF, B, PESCH, M, LIPPI, G. L, KAISER, R

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Minimizing the transition time in lasers by optimal control methods: Single-mode semiconductor laser with homogeneous transverse profile by Kim, J.-H.R., Lippi, G.L., Maurer, H.

“…The introduction of patterned current fronts that steer the transition between directly modulated optical bits allows for a strong modification in the shape of…”
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Rate equation description of quantum noise in nanolasers with few emitters by Mork, J., Lippi, G. L.

“…Rate equations for micro- and nanocavity lasers are formulated which take account of the finite number of emitters, Purcell effects as well as stochastic…”
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Optical gratings in the collective interaction between radiation and atoms, including recoil and collisions by PERRIN, M., LIPPI, G.L., POLITI, A.

“…The introduction of collisions and of a thermal distribution for the atomic momentum in the model for the Collective Atomic Recoil Laser (CARL) is at the…”
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"Phase Transitions" in small systems: why standard threshold definitions fail for nanolasers by Lippi, G. L, Wang, T, Puccioni, G. P

“…Since the development of micro- and nanolasers, the question of laser threshold has been subject to debate. Different definitions have been used to try and…”
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Spontaneous-emission-enabled dynamics at the threshold of a directly modulated semiconductor laser by Zou, J, Zhou, H, Jiang, C, Wang, G, Lippi, G. L, Wang, T

“…Chaos in semiconductor lasers or other optical systems has been intensively studied in the past two decades. However, modulation around threshold has received…”
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Self-lensing in sodium vapor: influence of saturation, atomic diffusion and radiation trapping by Ackemann, T., Scholz, T., Vorgerd, Ch, Nalik, J., Hoffer, L.M., Lippi, G.L.

“…Beam shaping processes, such as self-lensing, strongly influence many experiments in nonlinear optics. Concentrating on the self-defocusing case, we present a…”
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