Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Kazimierczuk, Tomasz"'
We present the basic properties of a new physical system: an individual V2+ ion embedded into an individual quantum dot. The system is realized utilizing molecular beam epitaxy and it is observed using a low-temperature polarization-resolved magneto-
Externí odkaz:
http://arxiv.org/abs/2409.02900
Autor:
Łopion, Aleksandra, Bogucki, Aleksander, Raczyński, Mateusz, Śnioch, Zuzanna, Połczyńska, Karolina E., Pacuski, Wojciech, Kazimierczuk, Tomasz, Golnik, Andrzej, Kossacki, Piotr
Optically detected magnetic resonance (ODMR) is a useful technique for studying interactions between local spins (magnetic ions) and carrier gas. We present the ODMR study of single (Cd,Mn)Te/(Cd,Mg)Te quantum wells (QWs) with the hole gas. We observ
Externí odkaz:
http://arxiv.org/abs/2407.07648
Autor:
Karmakar, Arka, Al-Mahboob, Abdullah, Zawadzka, Natalia, Raczyński, Mateusz, Yang, Weiguang, Arfaoui, Mehdi, Gayatri, Kucharek, Julia, Sadowski, Jerzy T., Shin, Hyeon Suk, Babiński, Adam, Pacuski, Wojciech, Kazimierczuk, Tomasz, Molas, Maciej R
Heterostructures (HSs) formed by the transition-metal dichalcogenides (TMDCs) materials have shown great promise in next-generation optoelectronic and photonic applications. An artificially twisted HS, allows us to manipulate the optical, and electro
Externí odkaz:
http://arxiv.org/abs/2404.15542
Autor:
Bogucki, Aleksander, Łopion, Aleksandra, Połczyńska, Karolina Ewa, Pacuski, Wojciech, Kazimierczuk, Tomasz, Golnik, Andrzej, Kossacki, Piotr
This study examines the spin-lattice relaxation rate of Mn$^{2+}$ ions in strained diluted magnetic semiconductor (Cd,Mn)Te/(Cd,Mg)Te quantum wells using the optically detected magnetic resonance (ODMR) technique. By adjusting the magnesium (Mg) cont
Externí odkaz:
http://arxiv.org/abs/2402.00228
Autor:
Karmakar, Arka, Kazimierczuk, Tomasz, Antoniazzi, Igor, Raczyński, Mateusz, Park, Suji, Jang, Houk, Taniguchi, Takashi, Watanabe, Kenji, Babiński, Adam, Al-Mahboob, Abdullah, Molas, Maciej R.
High light absorption (~15%) and strong photoluminescence (PL) emission in monolayer (1L) transition metal dichalcogenide (TMD) make it an ideal candidate for optoelectronic applications. Competing interlayer charge (CT) and energy transfer (ET) proc
Externí odkaz:
http://arxiv.org/abs/2301.05644
Autor:
Łopion, Aleksandra, Bogucki, Aleksander, Kraśnicki, Wiktor, Połczyńska, Karolina E., Pacuski, Wojciech, Kazimierczuk, Tomasz, Golnik, Andrzej, Kossacki, Piotr
Time-resolved optically detected magnetic resonance (ODMR) is a valuable technique to study the local deformation of the crystal lattice around magnetic ion as well as the ion spin relaxation time. Here we utilize selective Mn-doping to additionally
Externí odkaz:
http://arxiv.org/abs/2205.02890
Autor:
Rodek Aleksander, Oreszczuk Kacper, Kazimierczuk Tomasz, Howarth James, Taniguchi Takashi, Watanabe Kenji, Potemski Marek, Kossacki Piotr
Publikováno v:
Nanophotonics, Vol 13, Iss 4, Pp 487-497 (2024)
We present femtosecond pump-probe measurements of neutral and charged exciton optical response in monolayer MoSe2 to resonant photoexcitation of a given exciton state in the presence of 2D electron gas. We show that creation of charged exciton (X−)
Externí odkaz:
https://doaj.org/article/967ba7ebfcaa4033a49e171016929cbb
Autor:
Zinkiewicz, Małgorzata, Grzeszczyk, Magdalena, Kipczak, Łucja, Kazimierczuk, Tomasz, Watanabe, Kenji, Taniguchi, Takashi, Kossacki, Piotr, Babiński, Adam, Molas, Maciej R.
Publikováno v:
Applied Physics Letters 120, 163101 (2022)
The dielectric environment of atomically-thin monolayer (ML) of semiconducting transition metal dichalcogenides affects both the electronic band gap and the excitonic binding energy in the ML. We investigate the effect of the environment on the in-pl
Externí odkaz:
http://arxiv.org/abs/2201.08342
Autor:
Rodek, Aleksander, Hahn, Thilo, Kasprzak, Jacek, Kazimierczuk, Tomasz, Nogajewski, Karol, Połczyńska, Karolina, Watanabe, Kenji, Taniguchi, Takashi, Kuhn, Tilmann, Machnikowski, Paweł, Potemski, Marek, Wigger, Daniel, Kossacki, Piotr
Publikováno v:
Nanophotonics 10, 2717-2728 (2021)
Using a novel approach to ultrafast resonant pump-probe spectroscopy we investigate the spectral shape and dynamics of absorption features related to the A exciton in an hBN/MoSe$_2$/hBN van der Waals heterostructure. While in a pure two-level system
Externí odkaz:
http://arxiv.org/abs/2103.05328
Autor:
Sawicki, Krzysztof, Sturges, Thomas J., Ściesiek, Maciej, Kazimierczuk, Tomasz, Sobczak, Kamil, Golnik, Andrzej, Pacuski, Wojciech, Suffczyński, Jan
Publikováno v:
Cryst. Growth Des. 17, 3716 (2017)
Multi-level exciton-polariton systems offer an attractive platform for studies of non-linear optical phenomena. However, studies of such consequential non-linear phenomena as polariton condensation and lasing in planar microcavities have so far been
Externí odkaz:
http://arxiv.org/abs/2102.06812