Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Duška B. Popović"'
Publikováno v:
Atoms, Vol 11, Iss 2, p 20 (2023)
We study the Rabi flopping of the population between the ground and excited 2p states of the hydrogen atom, induced by intense short laser pulses of different shapes and of carrier frequency ω=0.375 a.u. which resonantly couples the two states, and
Externí odkaz:
https://doaj.org/article/d83ee278ef684cefbe51b4c9d0f7cf5a
Autor:
Jiří Černý, Arthur J. Nozik, Andrew F. Schwerin, Xudong Chen, Millicent B. Smith, Justin C. Johnson, Zdeněk Havlas, Duška B. Popović, Donald E. David, Akin Akdag, Matthew K. MacLeod, Paiboon Sreearunothai, Josef Michl, John R. Miller, Irina Paci, Mark A. Ratner
Publikováno v:
The Journal of Physical Chemistry A. 114:1457-1473
Single crystal molecular structure and solution photophysical properties are reported for 1,3-diphenylisobenzofuran (1), of interest as a model compound in studies of singlet fission. For the ground state of 1 and of its radical cation (1(+*)) and an
Publikováno v:
The Journal of Chemical Physics. 121:10551-10555
Vibrational electron energy loss spectra were measured for propane at incident energies of 3, 6, 10, 15, 20, and 25 eV at scattering angles of 40 degrees, 55 degrees, 70 degrees, 85 degrees, and 100 degrees . The spectra are compared with the results
Autor:
Duška B Popović, Istok P Mendaš
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 279:31-33
A study of multiphoton excitation in Γ -type three level system with generally non-degenerate excited states is presented. Such systems are formed by the three lowest states in, e.g., hydrogen atom or evenly charged homonuclear diatomic molecular io
Autor:
Duška B. Popović, Josef Michl, Donald E. David, Geeta Rana, Xudong Chen, Mark A. Ratner, Arthur J. Nozik, Justin C. Johnson, Irina Paci
Publikováno v:
Journal of the American Chemical Society. 128(51)
We discuss possible improvements in the efficiency of dye-sensitized photovoltaic cells using dyes capable of singlet fission into two triplets, thus producing two electron-hole pairs from a single photon. It is pointed out that, in addition to deriv
Publikováno v:
The journal of physical chemistry. B. 110(11)
Angular distributions of electrons scattered elastically and inelastically from cold solid molecular films of ethylene and nitrogen in various proportions, grown from the gas phase at different temperatures, have been studied by high-resolution elect
Publikováno v:
The Journal of chemical physics. 121(21)
We describe a wide-gap multichannel cylindrical deflection electron energy analyzer suitable for measuring the weak signals characteristic of electronically inelastic electron energy loss spectra. The analyzer has nearly ideal fringing field terminat
Publikováno v:
Physica Scripta. :010301
Autor:
Istok P Mendaš, Duška B Popović
Publikováno v:
Physica Scripta. 85:015008
The interdependence of total, dynamic and geometric (Pancharatnam) phases of the state vector of a quantum system that are determined in different representations is considered. One finds that the phases calculated using two different bases of the Hi
Autor:
Istok P Mendaš, Duška B Popović
Publikováno v:
Physica Scripta. 82:045007
Two operator identities involving a q-commutator, [A,B]?AB+qBA, where A and B are two arbitrary (generally noncommuting) linear operators acting on the same linear space and q is a variable that commutes with these two operators, are formulated, prov