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Výsledek výzkumu

ICO Topical Meeting on Emerging Trends and Novel Materials in Photonics

Priority objective of ICO-Photonics-Delphi2009 is to outline recent significant results in the field, while brining together optical and materials oriented communities for establishing a common scientific vision....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009
  • M
Výsledek výzkumu

Multiple-Photon Resonance Enabled Quantum Interference in Emission Spectroscopy of 2+

Quantum interference occurs frequently in the interaction of laser radiation with materials, leading to a series of fascinating effects such as lasing without inversion, electromagnetically induced transparency, Fano resona...

Optics (including laser optics and quantum optics)

  • 2024
  • Jimp
  • Odkaz
Výsledek výzkumu

Quantum Computing Seminar: Coherent control of light-driven electrons in solids: a milestone for multiqubit computing?

The seminar discussed how classical supercomputers contribute to accurate predictions in ultrafast sciences like atomic physics and attosecond phenomena. Using TDDFT, high-power computations, and ultrafast harmonic spectroscopy, the...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2024
  • O
  • Odkaz
Výsledek výzkumu

Comment on 'Ultrafast photoluminescence in quantum-confined silicon nanocrystals arises from an amorphous surface layer'

In this publication, we comment on the generality of the conclusions put forward in a recent publication by different authors (Hannah, D.C. et al ACS Photonics 2014, 1, 960967) regarding ultrafast luminescence of silicon nanocrystal...

BM - Fyzika pevných látek a magnetismus

  • 2015
  • Jx
  • Odkaz
Výsledek výzkumu

Ultrafast photoluminescence spectroscopy of InAs/GaAs quantum dots

of a double layer quantum dot structure with large spacer distance emitting at 1.3 m at room temperature. In ultrafast zero-time photoluminescence spectrum, we identified the transitions in GaAs barrier, in wetting layer a...

BH - Optika, masery a lasery

  • 2009
  • Jx
Výsledek výzkumu

Spin-lasers with periodic gratings: Toward ultrafast polarization modulation

-polarized photons, emitted in spin-polarized quantum wells. Precise modeling. Eigenmodes of cavity with periodic structures are extracted using effective medium theory-cavity surface-emitting lasers (spin-VCSELs) ...

Physical sciences

  • 2022
  • D
  • Odkaz
Výsledek výzkumu

Ultrafast photoluminescence spectroscopy of InAs/GaAs quantum dots

We used ultrafast PL spectroscopy to study the carrier dynamics in the energy of states of the double layer InAs/GaAs QD structure with large spacer distance (30 nm) emitting at 1.3 ?m at room temperature....

BM - Fyzika pevných látek a magnetismus

  • 2009
  • Jx
Výsledek výzkumu

Step-like enhancement of luminescence quantum yield of silicon nanocrystals

enhanced photoluminescence quantum yield. As the photon energy increases, the quantum following the absorption of a single photon may lead to improved photovoltaic on indirect ultrafast techniques. Here, ...

BH - Optika, masery a lasery

  • 2011
  • Jx
  • Odkaz
Výsledek výzkumu

Deciphering the mechanism of ultrafast scintillation in 1D silver halides

The development of ultrafast scintillators is critical to the GHz X‐ray emerged as promising candidates due to high radioluminescence efficiency and ultrafast decay time. However, the ultrafast scintillation mechanism in si...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2024
  • Jimp
  • Odkaz
Výsledek výzkumu

Quantum state propagation in linear photonic bandgap structures

In this paper we investigate the propagation of a generic quantum state in a corrugated waveguide, which reproduces a photonic bandgap structure. We find the conditions that assure the outcoming state to preserve the qu...

BH - Optika, masery a lasery

  • 2004
  • Jx
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