S. A. Demurjian, Y. He, T. C. Ting, M. Saba
In the age of information technology, organizations of all types are seeking to effectively utilize and disseminate information, by designing and developing dependable and secure distributed...
Saba, M.; Institute Of Seismology And Volcanology, Faculty Of Science, Hokkaido University, Sapporo, Japan, Nishida, Y.; Institute Of Seismology And Volcanology, Faculty Of Science, Hokkaido University, Sapporo, Japan, Takakura, S.; Institute Of Seismology And Volcanology, Faculty Of Science, Hokkaido University, Sapporo, Japan, Matsushima, N.; The Geological Survey Of Japan, The National Institute Of Advanced Industrial Science And Technology (AIST), Tsukuba, Japan, Mogi, T.; The Geological Survey Of Japan, The National Institute Of Advanced Industrial Science And Technology (AIST), Tsukuba, Japan
The 2000 eruption of Usu volcano, NE Japan, took place on the foot of the somma, and formed a cryptodome of 65 m high accompanying numerous faults. We made repeated measurements of ground...
Shin, Y., Will, S., Pasquini, T. A., Saba, M., Ketterle, W., ...
We measured the relative phase of two Bose-Einstein condensates confined in an radio frequency induced double well potential on an atom chip. We observed phase coherence between the separated...
Low velocity quantum reflection of Bose-Einstein condensates (2006)
Pasquini, T. A., Saba, M., Jo, G., Shin, Y., Ketterle, W., Pritchard, D. E., ...
We studied quantum reflection of Bose-Einstein condensates at normal incidence on a square array of silicon pillars. For incident velocities of 2.5-26 mm/s observations agreed with theoretical...
A MultiAgent System for Classifying Bioinformatics Publications (2006)
Andrew Martin, Huaglory Tianfield, Rainer Unland, A. Addis, A. Manconi, M. Saba, ...
WS21 Workshop
Optical Weak Link between Two Spatially Separate Bose-Einstein Condensates (2005)
Shin, Y., Saba, M., Pasquini, T. A., Ketterle, W., Pritchard, D. E.
Two spatially separate Bose-Einstein condensates were prepared in an optical double-well potential. A bidirectional coupling between the two condensates was established by two pairs of Bragg beams...
Interference of Bose-Einstein Condensates on an Atom Chip (2005)
Shin, Y., Sanner, C., Pasquini, T. A., Saba, M., Ketterle, W., ...
We have used a microfabricated atom chip to split a single Bose-Einstein condensate of sodium atoms into two spatially separated condensates. Dynamical splitting was achieved by deforming the trap...
PP16. TEMPORAL ARTERY BIOPSY TO DIAGNOSE GIANT CELL ARTERITIS: THE LONGER, THE BETTER? (2005)
Mahr, A., Saba, M., Kambouchner, M., Polivka, M., Baudrimont, M., Brochériou, I., ...
Background: The optimal temporal artery biopsy (TAB) length yielding high diagnostic sensitivity for giant-cell arteritis (GCA) remains unknown. Methods: We reviewed the histological TAB reports...
Dynamical Instability of a Doubly Quantized Vortex in a Bose-Einstein condensate (2004)
Shin, Y., Saba, M., Vengalattore, M., Pasquini, T. A., Sanner, C., Leanhardt, A. E., ...
Doubly quantized vortices were topologically imprinted in $|F=1>$ $^{23}$Na condensates, and their time evolution was observed using a tomographic imaging technique. The decay into two singly...
Coherence properties of polaritons in semiconductor microcavities (2004)
Kundermann, S., Guillet, T., Saba, M., Ciuti, C., El Daif, O., Staehli, J. L., ...
In this work we present the coherent control of polariton parametric scattering with weak phase locked probe pulses. It is demonstrated that the signal emission arising from the parametric scattering...
Evidence for parametric memory and correlation in semiconductor microcavities (2003)
Kundermann, S., Saba, M., Ciuti, C., Guillet, T., Staehli, JL., Deveaud, B.
We measured the dynamics of polariton parametric stimulated scattering in semiconductor microcavities, by time-resolving the amplified signal with 250 fs resolution. Our experiments demonstrate that...
Distillation of Bose-Einstein condensates in a double-well potential (2003)
Shin, Y., Saba, M., Schirotzek, A., Pasquini, T. A., Leanhardt, A. E., Pritchard, D. E., ...
Bose-Einstein condensates of sodium atoms, prepared in an optical dipole trap, were distilled into a second empty dipole trap adjacent to the first one. The distillation was driven by thermal atoms...
Atom interferometry with Bose-Einstein condensates in a double-well potential (2003)
Shin, Y., Saba, M., Pasquini, T. A., Ketterle, W., Pritchard, D. E., Leanhardt, A. E.
A trapped-atom interferometer was demonstrated using gaseous Bose-Einstein condensates coherently split by deforming an optical single-well potential into a double-well potential. The relative phase...
Cooling Bose-Einstein condensates below 500 picokelvin (2003)
Leanhardt, A.E., Pasquini, T.A ., Saba, M., Schirotzek, A., Shin, Y., Kielpinski, David, ...
Spin-polarized gaseous Bose-Einstein condensates were confined by a combination of gravitational and magnetic forces. The partially condensed atomic vapors were adiabatically decompressed by...
Cooling Bose-Einstein condensates below 500 picokelvin (2003)
Leanhardt, A.E., Pasquini, T.A ., Saba, M., Schirotzek, A., Shin, Y., Kielpinski, David, ...
Yes
Towards a room-temperature polariton amplifier (2003)
Saba, M., Ciuti, C., Kundermann, S., Staehli, J. L., Deveaud, B.
Microcavity exciton polaritons, the fundamental optical excitations of semiconductor microcavities with quantum wells inside, have been proposed as promising candidates for observing stimulated...
Coherent control of polariton parametric scattering in semiconductor microcavities (2003)
Kundermann, S., Saba, M., Ciuti, C., Guillet, T., Oesterle, U., Staehli, J. L., ...
In a pump-probe experiment, we have been able to control, with phase-locked probe pulses, the ultrafast nonlinear optical emission of a semiconductor microcavity, arising from polariton parametric...
Polariton amplification in semiconductor microcavities (2003)
Saba, M., Kundermann, S., Ciuti, C., Guillet, T., Staehli, J. L., Deveaud, B.
Microcavity exciton polaritons, the fundamental optical excitations of semiconductor microcavities with quantum wells inside, have been proposed as promising candidates for observing stimulated...
Cooling Bose-Einstein condensates below 500 picokelvin (2003)
Leanhardt, A.E., Pasquini, T.A ., Saba, M., Schirotzek, A., Shin, Y., Kielpinski, David, ...
Spin-polarized gaseous Bose-Einstein condensates were confined by a combination of gravitational and magnetic forces. The partially condensed atomic vapors were adiabatically decompressed by...
Cooling Bose-Einstein condensates below 500 picokelvin (2003)
Leanhardt, A.E., Pasquini, T.A ., Saba, M., Schirotzek, A., Shin, Y., Kielpinski, David, ...
Spin-polarized gaseous Bose-Einstein condensates were confined by a combination of gravitational and magnetic forces. The partially condensed atomic vapors were adiabatically decompressed by...
Polariton parametric amplification in semiconductor microcavities (2002)
Saba, M., Ciuti, C., Kundermann, S., Staehli, J. L., Deveaud, B., Bloch, J., ...
Modifying the photonic environment of a semiconductor quantum well by embedding it in a high-reflectivity microcavity gives rise to new fundamental optical excitations, half-quantum well excitons,...
Quantum kinetics of parametric polariton scattering in microcavities (2002)
Staehli, J. L., Saba, M., Kundermann, S., Ciuti, C., Deveaud, B.
An investigation of the parametric amplification and its coherent control in a semiconductor micro-cavity is presented. The time and angle resolved pump and probe experiments show that several ps...
Towards a room temperature polariton amplifier (2002)
Saba, M., Ciuti, C., Kundermann, S., Staehli, J. L., Deveaud, B., Bloch, J., ...
We engineer a semiconductor microcavity through an appropriate choice of geometry and materials in order to maximise the exciton-photon coupling. The polaritonic nonlinearities in such devices...
Deveaud, B., Quochi, F., Saba, M., Ciuti, C., Staehli, J. L.
We have studied the femtosecond dynamics of excitonic resonances in quantum well microcavities under strong excitation. Very strong non-linearities are observed, which bear clear resemblance to the...
High-temperature ultrafast polariton parametric amplification in semiconductor microcavities (2001)
Saba, M., Ciuti, C., Bloch, J., Thierry-Mieg, V., Andre, R., Dang, L. S., ...
Cavity polaritons, the elementary optical excitations of semiconductor microcavities, may be understood as a superposition of excitons and cavity photons(1). Owing to their composite nature, these...
Direct observation of the excitonic ac Stark splitting in a quantum well (2000)
Saba, M., Quochi, F., Ciuti, C., Martin, D., Staehli, J. L., Deveaud, B., ...
Ultrafast pump-probe measurements evidence the dynamical Stark splitting in the exciton absorption spectrum of a single semiconductor quantum well. The intensity of the Stark sidebands in the...
The microcavity AC Stark triplet: Excitation in the exciton continuum (2000)
Quochi, F., Saba, M., Ciuti, C., Oesterle, U., Staehli, J. L., Deveaud, B., ...
The coherent optical response of high quality microcavities containing quantum wells is investigated. The dynamics of the ac Stark effect is investigated by degenerate pump-probe experiments, by...
Crossover from exciton to biexciton cavity polaritons (2000)
Saba, M., Quochi, F., Ciuti, C., Oesterle, U., Staehli, J. L., Deveaud, B., ...
We report novel oscillator strength transfer phenomena induced by the exciton-exciton correlation. A high quality semiconductor microcavity is resonantly excited by intense circularly polarised...
Crossover from exciton to biexciton polaritons in semiconductor microcavities (2000)
Saba, M., Quochi, F., Ciuti, C., Oesterle, U., Staehli, J. L., Deveaud, B., ...
Pump-probe measurements in a microcavity containing a quantum well show that a population of circularly polarized (sigma(+)) excitons can completely inhibit the transition to sigma(-) one-exciton...
The importance of disorder in very high quality semiconductor microcavities (2000)
Saba, M., Quochi, F., Oesterle, U., Staehli, J. L., Deveaud, B., Bongiovanni, G., ...
We investigate a semiconductor microcavity containing a quantum well, a sample of exceptional quality. We observe a four-wave mixing response which resembles that of an inhomogeneously broadened...
Net coherent optical gain in strongly pumped semiconductor microcavities (2000)
Quochi, F., Saba, M., Ciuti, C., Oesterle, U., Staehli, J. L., Deveaud, B., ...
We study the subpicosecond gain dynamics in a high-finesse semiconductor microcavity containing quantum wells by means of degenerate pump-probe spectroscopy. Tuning the optical excitation in...
Quochi, F., Saba, M., Ciuti, C., Stanley, R. P., Houdre, R., Oesterle, U., ...
We study the coherent optical response of a very high-finesse microcavity with a single quantum well by means of degenerate subpicosecond pump-probe spectroscopy. The dynamics of the ac Stark effect...
The excitonic AC Stark effect in high energy excited semiconductor microcavities (2000)
Quocchi, F., Saba, M., Ciuti, C., Stanley, R.P., Houdré, R., Oesterle, U., ...
Crossover from exciton to biexciton cavity polaritons (2000)
Saba, M., Quocchi, F., Ciuti, C., Stanley, R.P., Houdré, R., Oesterle, U., ...
Intrinsic non-linearities in exciton-cavity-coupled systems (1999)
Saba, M., Quochi, F., Ciuti, C., Bongiovanni, G., Mura, A., Oesterle, U., ...
We investigate the mechanisms leading to the optical non-linearities observed on a strongly excited semiconductor microcavity containing quantum wells. This study of a coupled exciton-cavity system...
Strong coherent gain from semiconductor microcavities in the regime of excitonic saturation (1999)
Quochi, F., Ciuti, C., Bongiovanni, G., Mura, A., Saba, M., Oesterle, U., ...
We present femtosecond gain measurements in microcavity-embedded quantum wells. When the excitonic transition is saturated by an intense pump field, the spectrum measured with a weak probe pulse is...