Zobrazeno 1 - 10
of 912
pro vyhledávání: '"Deveaud, B"'
Autor:
Piętka, B., Bobrovska, N., Stephan, D., Teich, M., Król, M., Winnerl, S., Pashkin, A., Mirek, R., Lekenta, K., Morier-Genoud, F., Schneider, H., Deveaud, B., Helm, M., Matuszewski, M., Szczytko, J.
Publikováno v:
Phys. Rev. Lett. 119, 077403 (2017)
We demonstrate the existence of a novel quasiparticle: an exciton in a semiconductor doubly dressed with two photons of different wavelengths: near infrared cavity photon and terahertz (THz) photon, with the THz coupling strength approaching the ultr
Externí odkaz:
http://arxiv.org/abs/1704.06547
Autor:
Pietka, B., Molas, M. R., Bobrovska, N., Krol, M., Mirek, R., Lekenta, K., Stepnicki, P., Morier-Genoud, F., Szczytko, J., Deveaud, B., Matuszewski, M., Potemski, M.
Publikováno v:
Phys. Rev. B 96, 081402 (2017)
We demonstrate the existence of the excited state of an exciton-polariton in a semiconductor microcavity. The strong coupling of the quantum well heavy-hole exciton in an excited 2s state to the cavity photon is observed in non-zero magnetic field du
Externí odkaz:
http://arxiv.org/abs/1704.06513
Autor:
Takemura, N., Anderson, M. D., Navadeh-Toupchi, M., Oberli, D. Y., Portella-Oberli, M. T., Deveaud, B.
Publikováno v:
Phys. Rev. B 95, 205303 (2017)
We determine experimentally the spinor interaction constants of lower-polaritons $\alpha_1$ and $\alpha_2$ using resonant pump-probe spectroscopy with a spectrally narrow pump pulse. Our experimental findings are analyzed with the Bogoliubov-like the
Externí odkaz:
http://arxiv.org/abs/1701.09113
Autor:
Takemura, N., Anderson, M. D., Biswas, S., Navadeh-Toupchi, M., Oberli, D. Y., Portella-Oberli, M. T., Deveaud, B.
Publikováno v:
Phys. Rev. B 94, 195301 2016
The interaction between coherent polaritons and incoherent excitons plays an important role in polariton physics. Using resonant pump-probe spectroscopy with selective excitation of single polariton branches, we investigate the different dephasing me
Externí odkaz:
http://arxiv.org/abs/1611.04770
Autor:
Takemura, N., Trebaol, S., Anderson, M. D., Kohnle, V., Léger, Y., Oberli, D. Y., Portella-Oberli, M. T., Deveaud, B.
We investigate polariton-polariton interactions in a semiconductor microcavity through two-dimensional Fourier transform (2DFT) spectroscopy. We observe, in addition to the lower-lower and the upper-upper polariton self-interaction, a lower-upper cro
Externí odkaz:
http://arxiv.org/abs/1506.01964
Publikováno v:
Phys. Rev. B 91, 155307 (2015)
We report on noise-induced-spin-ordering in a collective quasipaticle system: spinor stochastic resonance. Synergetic interplay of a polarization-modulated signal and a polarization-noise allows us to switch coherently between the two metastable stat
Externí odkaz:
http://arxiv.org/abs/1505.00929
Autor:
Abbaspour, H., Sallen, G., Trebaol, S., Morier-Genoud, F., Portella-Oberli, M. T., Deveaud, B.
We report on the effect of noise on the characteristics of the bistable polariton emission system. The present experiment provides a time resolved access to the polariton emission intensity. We evidence the noise-induced transitions between the two s
Externí odkaz:
http://arxiv.org/abs/1505.00932
Autor:
Pietka, B., Zygmunt, D., Krol, M., Szczytko, J., Lusakowski, J., Molas, M. R., Nicolet, A. A. L., Stepnicki, P., Zieba, P., Tralle, I., Morier-Genoud, F., Matuszewski, M., Potemski, M., Deveaud, B.
We detail the influence of a magnetic field on exciton-polaritons inside a semiconductor microcavity. Magnetic field can be used as a tuning parameter for exciton and photon resonances. We discuss the change of the exciton energy, the oscillator stre
Externí odkaz:
http://arxiv.org/abs/1411.7875
Integration of optical elements into scalable chips has been at the center of a large effort in recent years. Concurrently, the separation between the diverse functions, namely switches, detectors or emitters increases significantly the final number
Externí odkaz:
http://arxiv.org/abs/1312.1238
Autor:
Manni, F., Liew, T. C. H., Lagoudakis, K. G., Ouellet-Plamondon, C., André, R., Savona, V., Deveaud, B.
Publikováno v:
Phys. Rev. B 88, 201303(R) (2013)
Polariton condensates have proved to be model systems to investigate topological defects, as they allow for direct and non-destructive imaging of the condensate complex order parameter. The fundamental topological excitations of such systems are quan
Externí odkaz:
http://arxiv.org/abs/1302.2817