Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Karel Žídek"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Strong second harmonic generation (SHG) in silicon nitride has been extensively studied—among others, in terms of laser-induced SHG enhancement in Si3N4 waveguides. This enhancement has been ascribed to the all-optical poling induced by th
Externí odkaz:
https://doaj.org/article/1bb1f42ae6404e06be71279bc71a0d63
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract A targeted shaping of complex femtosecond pulse waveforms and their characterization is essential for many spectroscopic applications. A 4f pulse shaper combined with an advanced pulse characterization technique should, in the idealized case
Externí odkaz:
https://doaj.org/article/08eaa5afb2dc4f48bbb8c00c7f77100b
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Abstract We propose and demonstrate a spectrally-resolved photoluminescence imaging setup based on the so-called single pixel camera – a technique of compressive sensing, which enables imaging by using a single-pixel photodetector. The method relie
Externí odkaz:
https://doaj.org/article/91316c87a48c4fb5af10e4f79d261628
Publikováno v:
ACS Omega, Vol 2, Iss 5, Pp 1922-1929 (2017)
Externí odkaz:
https://doaj.org/article/f0cc01016f6143dc983760629c785fd7
Hyperspectral imaging (HSI) has become a valuable tool in sample characterization in various scientific fields. While many approaches have been tested, specific applications and technology usually lead to only a narrow part of the spectrum being stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f5966d058b735ae236729fd76f8ef7f
https://doi.org/10.1364/opticaopen.21915423
https://doi.org/10.1364/opticaopen.21915423
Publikováno v:
Optics Express. 31:17185
This paper describes on-chip digital holographic interferometry for measuring the wavefront deformation of transparent samples. The interferometer is based on a Mach-Zehnder arrangement with a waveguide in the reference arm, which allows for a compac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb918bf1421c6a9d2f82d64c4b88c2fb
https://doi.org/10.1364/oe.486997
https://doi.org/10.1364/oe.486997
Autor:
Mariem Guesmi, Vít Kanclíř, Tomáš Thoř, Oumayma Taboubi, Ivana Šeděnková, Yadu Ram Panthi, Jiri Pfleger, Karel Žídek
Publikováno v:
Journal of Luminescence. 257:119668
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aade71fa1eba95dc4dfab6bfdceea7d1
https://doi.org/10.1016/j.jlumin.2023.119668
https://doi.org/10.1016/j.jlumin.2023.119668
Publikováno v:
Applied Optics. 62:2522
Domain patterns in ferroelectric single crystals are physical systems that are fascinating from a theoretical point of view and essential for many applications. A compact lensless method for imaging domain patterns in ferroelectric single crystals ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce0111ff4d11a42394de90b3aa7d25fd
https://doi.org/10.1364/ao.482379
https://doi.org/10.1364/ao.482379
Autor:
Zhengjun Wang, Albin Hedse, Edoardo Amarotti, Nils Lenngren, Karel Žídek, Kaibo Zheng, Donatas Zigmantas, Tõnu Pullerits
Publikováno v:
Wang, Z, Hedse, A, Amarotti, E, Lenngren, N, Źídek, K, Zheng, K, Zigmantas, D & Pullerits, T 2022, ' Beating signals in CdSe quantum dots measured by low-temperature 2D spectroscopy ', Journal of Chemical Physics, vol. 157, no. 1, 014201 . https://doi.org/10.1063/5.0089798
Advances in ultrafast spectroscopy can provide access to dynamics involving nontrivial quantum correlations and their evolutions. In coherent 2D spectroscopy, the oscillatory time dependence of a signal is a signature of such quantum dynamics. Here w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934a8bd51bffe2a4f1473caaee0c0929
http://arxiv.org/abs/2205.06999
http://arxiv.org/abs/2205.06999
Autor:
Zhengjun Wang, Nils Lenngren, Edoardo Amarotti, Albin Hedse, Karel Žídek, Kaibo Zheng, Donatas Zigmantas, Tõnu Pullerits
Publikováno v:
Wang, Z, Lenngren, N, Amarotti, E, Hedse, A, Žídek, K, Zheng, K, Zigmantas, D & Pullerits, T 2022, ' Excited States and Their Dynamics in CdSe Quantum Dots Studied by Two-Color 2D Spectroscopy ', Journal of Physical Chemistry Letters, vol. 13, no. 5, pp. 1266-1271 . https://doi.org/10.1021/acs.jpclett.1c04110
J. Phys. Chem. Lett.
J. Phys. Chem. Lett.
Quantum dots (QDs) form a promising family of nanomaterials for various applications in optoelectronics. Understanding the details of the excited-state dynamics in QDs is vital for optimizing their function. We apply two-color 2D electronic spectrosc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1768ab27acb216a56c8035374e52b276
https://orbit.dtu.dk/en/publications/fa502d81-5e73-42b7-97a6-d8124d17b672
https://orbit.dtu.dk/en/publications/fa502d81-5e73-42b7-97a6-d8124d17b672