Zobrazeno 1 - 10
of 401
pro vyhledávání: '"Aßmann, M."'
Autor:
Kurdyubov, A. S., Trifonov, A. V., Gribakin, B. F., Grigoryev, P. S., Gerlovin, I. Ya., Mikhailov, A. V., Ignatiev, I. V., Efimov, Yu. P., Eliseev, S. A., Lovtcius, V. A., Aßmann, M., Kavokin, A. V.
Dynamics of nonradiative excitons with large in-plane wave vectors forming a so-called reservoir is experimentally studied in a high-quality semiconductor structure containing a 14-nm shallow GaAs/Al$_{0.03}$Ga$_{0.97}$As quantum well by means of the
Externí odkaz:
http://arxiv.org/abs/2103.09867
Autor:
Trifonov, A. V., Kurdyubov, A. S., Gerlovin, I. Ya., Smirnov, D. S., Kavokin, K. V., Yugova, I. A., Aßmann, M., Kavokin, A. V.
In this paper, we experimentally demonstrate an oscillating energy shift of quantum-confined exciton levels in a semiconductor quantum well after excitation into a superposition of two quantum confined exciton states of different parity. Oscillations
Externí odkaz:
http://arxiv.org/abs/2003.08143
Autor:
Sortino, L., Zotev, P. G., Mignuzzi, S., Cambiasso, J., Schmidt, D., Genco, A., Aßmann, M., Bayer, M., Maier, S. A., Sapienza, R., Tartakovskii, A. I.
Publikováno v:
Nature Communications Volume 10, Article number: 5119 (2019)
Unique structural and optical properties of atomically thin two-dimensional semiconducting transition metal dichalcogenides enable in principle their efficient coupling to photonic cavities with optical modes volumes close to or below the diffraction
Externí odkaz:
http://arxiv.org/abs/1906.08560
Autor:
Heckötter, J., Freitag, M., Fröhlich, D., Aßmann, M., Bayer, M., Grünwald, P., Schöne, F., Semkat, D., Stolz, H., Scheel, S.
Publikováno v:
Phys. Rev. Lett. 121, 097401 (2018)
We use two-color pump-probe spectroscopy to study Rydberg excitons in Cu$_2$O in the presence of free carriers injected by above-band-gap excitation. Already at plasma densities $\rho_\text{eh}$ below one hundredth electron-hole pair per \textmu m$^{
Externí odkaz:
http://arxiv.org/abs/1709.00891
Autor:
Heckötter, J., Freitag, M., Fröhlich, D., Aßmann, M., Bayer, M., Semina, M. A., Glazov, M. M.
Publikováno v:
Phys. Rev. B 96, 125142 (2017)
Rydberg atoms have attracted considerable interest due to their huge interaction among each other and with external fields. They demonstrate characteristic scaling laws in dependence on the principal quantum number $n$ for features such as the magnet
Externí odkaz:
http://arxiv.org/abs/1704.00974
Autor:
Heckötter, J., Freitag, M., Fröhlich, D., Aßmann, M., Bayer, M., Semina, M. A., Glazov, M. M.
Publikováno v:
Phys. Rev. B 95, 035210 (2017)
We have used high resolution transmission spectroscopy to study the exciton level spectrum in Cu$_2$O subject to a longitudinal external electric field, i.e., in the geometry where the transmitted light is propagating along the field direction. Diffe
Externí odkaz:
http://arxiv.org/abs/1610.05001
Akademický článek
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Autor:
Schmidt, D., Godde, T., Schmutzler, J., Aßmann, M., Debus, J., Withers, F., Alexeev, E. M., Del Pozo-Zamudio, O., Skrypka, O. V., Novoselov, K. S., Bayer, M., Tartakovskii, A. I.
Publikováno v:
Phys. Rev. B 94, 165301 (2016)
We present a detailed investigation of the exciton and trion dynamics in naturally doped MoSe2 and WSe2 single atomic layers as a function of temperature in the range 10-300K under above band-gap laser excitation. By combining time-integrated and tim
Externí odkaz:
http://arxiv.org/abs/1608.04031
Publikováno v:
Phys. Rev. Lett. 117, 133003 (2016)
Coherent optical control of individual particles has been demonstrated both for atoms and semiconductor quantum dots. Here we demonstrate the emergence of quantum coherent effects in semiconductor Rydberg excitons in bulk Cu$_2$O. Due to the spectral
Externí odkaz:
http://arxiv.org/abs/1511.07742
Autor:
Thewes, J., Heckötter, J., Kazimierczuk, T., Aßmann, M., Fröhlich, D., Bayer, M., Semina, M. A., Glazov, M. M.
Publikováno v:
Phys. Rev. Lett. 115, 027402 (2015)
The recent observation of dipole-allowed $P$-excitons up to principal quantum numbers of $n=25$ in cuprous oxide has given insight into exciton states with unprecedented spectral resolution. While so far the exciton description as a hydrogen-like com
Externí odkaz:
http://arxiv.org/abs/1503.05517