Results 31 to 40 of about 1,198,643 (296)

Two-State Lasing in Microdisk Laser Diodes with Quantum Dot Active Region

Photonics, 2023
The two-state lasing phenomenon, which manifests itself in simultaneous laser emission through several optical transitions of quantum dots, is studied in microdisk diode lasers with different cavity diameters.
Ivan Makhov, Konstantin Ivanov, Eduard Moiseev, Anna Dragunova, Nikita Fominykh, Yuri Shernyakov, Mikhail Maximov, Natalia Kryzhanovskaya, Alexey Zhukov   +8 more
doaj   +1 more source

Self-Organized Bottleneck in Energy Relaxation

, 2003
We study an energy relaxation process after many degrees of freedom are excited in a Hamiltonian system with a large number of degrees of freedom. Bottlenecks of relaxation, where relaxations of the excited elements are drastically slowed down, are ...
, , , , Boltzmann L., H Morita, Jeans J. H., Jeans J. H., K Kaneko, Konishi T., Kuramoto Y., Landau L. D., Lifshitz E. M., Pluchino A.   +13 more
core   +1 more source

Variational study of the Holstein polaron [PDF]

, 2002
The paper deals with the ground and the first excited state of the polaron in the one dimensional Holstein model. Various variational methods are used to investigate both the weak coupling and strong coupling case, as well as the crossover regime between
Candler G.V., Sun Q., Wang W.-L.
core   +3 more sources

In situ n-doped nanocrystalline electron-injection-layer for general-lighting quantum-dot LEDs

Nature Communications
Quantum-dot optoelectronics, pivotal for lighting, lasing and photovoltaics, rely on nanocrystalline oxide electron-injection layer. Here, we discover that the prevalent surface magnesium-modified zinc oxide electron-injection layer possesses poor n-type
Yizhen Zheng, Xing Lin, Jiongzhao Li, Jianan Chen, Wenhao Wu, Zixuan Song, Yuan Gao, Zhuang Hu, Huifeng Wang, Zikang Ye, Haiyan Qin, Xiaogang Peng   +11 more
doaj   +1 more source

Mean parity of single quantum excitation of some optical fields in thermal environments

, 2010
The mean parity (the Wigner function at the origin) of excited binomial states, excited coherent states and excited thermal states in thermal channel is investigated in details.
Carmichael H J, Darwish M, Dodonov V V, Gardiner C, Kenfack A, Shang-Bin Li, Stoler D   +6 more
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Excited States of Ladder-type Poly-p-phenylene Oligomers

, 2000
Ground state properties and excited states of ladder-type paraphenylene oligomers are calculated applying semiempirical methods for up to eleven phenylene rings. The results are in qualitative agreement with experimental data.
A. Köhler, C. Møller, D. Guo, D. Yaron, Florian Gebhard, G. A. Petersson, G. D. Mahan, G. Wegner, Heinz Bässler, J. A. Pople, J. Cornil, J. E. Ridley, J. Grimme, J. J. P. Stewart, J. S. Dewar, J.-W. van der Horst, Jörg Rissler, M. C. Zerner, M. G. Harrison, M. Knupfer, M. Rohlfing, M. S. Gordon, M. Y. Larentiev, P. C. Hariharan, P. C. Hariharan, Peter Schwerdtfeger, R. Ditchfield, S. Abe, S. Barth, S. F. Alvarado, T. Pauck, U. Scherf, V. I. Archipov, W. J. Hehre   +33 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Quantum coupling in colloidal homodimers of epitaxially attached CdSe@CdS dot@platelets probed on single-particle level

Nature Communications
Coupled quantum-dot (QD) dimers can be viewed as diatomic artificial molecules, thus offering a unique platform to study molecular physics and quantum phenomena.
Hairui Lei, Haiyan Qin, Haixin Lei, Yuqing Wang, Jiongzhao Li, Xiaogang Peng   +5 more
doaj   +1 more source

Is it possible to construct excited-state energy functionals by splitting k-space?

, 2009
We show that our procedure of constructing excited-state energy functionals by splitting k-space, employed so far to obtain exchange energies of excited-states, is quite general.
Ayers, Dirac, Dreizler, Fermi, Gross, Gunnarsson, Gázquez, Görling, Harbola, Harbola, Harbola, Harbola, Hohenberg, Jones, Kittel, Kohn, Kohn, Levy, M. Hemanadhan, Manoj K. Harbola, March, Nagy, Nagy, Oliveira, Parr, Pathak, Perdew, Perdew, Rahaman, Samal, Samal, Sen, Singh, Theophilou, Thomas, von Barth, von Weizsacker, Ziegler   +37 more
core   +1 more source