Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Matthias Liertzer"'
Autor:
Matthias Liertzer, Johannes Kramer, Weijian Chen, Stefan Rotter, Jan Wiersig, Sahin Kaya Ozdemir, Bo Peng, Lan Yang, Huzeyfe Yilmaz
Publikováno v:
Proceedings of the National Academy of Sciences. 113:6845-6850
Controlling the emission and the flow of light in micro- and nanostructures is crucial for on-chip information processing. Here we show how to impose a strong chirality and a switchable direction of light propagation in an optical system by steering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdec50a6b2e70f34d5022e00cd85d375
https://doi.org/10.1073/pnas.1603318113
https://doi.org/10.1073/pnas.1603318113
Autor:
Adi Pick, Stephan Burkhardt, Bo Zhen, Felipe Hernandez, Steven G. Johnson, Stefan Rotter, David Liu, Li Ge, Matthias Liertzer
Publikováno v:
Physical Review A. 95
We present a general method to obtain the stable lasing solutions for the steady-state ab-initio lasing theory (SALT) for the case of a degenerate symmetric laser in two dimensions (2d). We find that under most regimes (with one pathological exceptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06b1b17436fd29d990bc2309c9caca74
https://doi.org/10.1103/physreva.95.023835
https://doi.org/10.1103/physreva.95.023835
Autor:
Sahin Kaya Ozdemir, Faraz Monifi, Huzeyfe Yilmaz, Stefan Rotter, Matthias Liertzer, Franco Nori, Bo Peng, Carl M. Bender, Lan Yang
Publikováno v:
Science. 346:328-332
Controlling and reversing the effects of loss are major challenges in optical systems. For lasers losses need to be overcome by a sufficient amount of gain to reach the lasing threshold. We show how to turn losses into gain by steering the parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::994bea5c64266597cc394e60c62f262d
https://doi.org/10.1126/science.1258004
https://doi.org/10.1126/science.1258004
Publikováno v:
Journal of the Optical Society of America B
Journal of the Optical Society of America B, Optical Society of America, 2016, 33, pp.1888. ⟨10.1364/JOSAB.33.001888⟩
Journal of the Optical Society of America B, Optical Society of America, 2016, 33, pp.1888. ⟨10.1364/JOSAB.33.001888⟩
International audience; We study the crossover between the diffusive and quasi-ballistic regimes of random lasers. In particular, we compare incoherent models based on the diffusion equation and the radiative transfer equation (RTE), which neglect al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c14b8e5c8f95cea9fcf935a4f2f58d
Publikováno v:
Physical Review A. 92
We investigate the range of validity of the recently developed steady-state ab initio laser theory (SALT). While very efficient in describing various microlasers, SALT is conventionally believed not to be applicable to lasers featuring fully or nearl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a530291b36ed1a5a27fd87a64e3f2242
https://doi.org/10.1103/physreva.92.013847
https://doi.org/10.1103/physreva.92.013847
Publikováno v:
Physical Review A. 89
We study the non-Markovian quantum dynamics of an emitter inside an open multimode cavity, focusing on the case where the emitter is resonant with high-frequency cavity modes. Based on a Green's function technique suited for open photonic structures,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::451c5ae295cff859011faa4b5fac94f0
https://doi.org/10.1103/physreva.89.033820
https://doi.org/10.1103/physreva.89.033820
Autor:
Matthias Liertzer, Stefan Rotter
Publikováno v:
SPIE Newsroom.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf243489ef329659fcdc08cd15248e81
https://doi.org/10.1117/2.1201309.005132
https://doi.org/10.1117/2.1201309.005132
Publikováno v:
Physical Review Letters
The angular emission pattern of a random laser is typically very irregular and difficult to tune. Here we show by detailed numerical calculations that one can overcome the lack of control over this emission pattern by actively shaping the spatial pum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d972d10d6eb25531889acccc05102854
http://arxiv.org/abs/1303.5292
http://arxiv.org/abs/1303.5292
Photoionization of helium by attosecond pulses: extraction of spectra from correlated wave functions
Autor:
Johannes Feist, Emil Persson, Matthias Liertzer, Luca Argenti, Joachim Burgdörfer, Eva Lindroth, Stefan Nagele, Renate Pazourek
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
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We investigate the photoionization spectrum of helium by attosecond XUV pulses both in the spectral region of doubly excited resonances as well as above the double ionization threshold. In order to probe for convergence, we compare three techniques t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee2bcc152ffeb7a0b7081ba2308fbe0a
http://arxiv.org/abs/1210.2187
http://arxiv.org/abs/1210.2187
Publikováno v:
Physical Review Letters. 109
We explore excitation and ionization by neutron impact as a novel tool for the investigation of electron-electron correlations in helium. We present single and double ionization spectra calculated in accurate numerical ab-initio simulations for incom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd1830e452e8d8b0904764d8cc26a394
https://doi.org/10.1103/physrevlett.109.013201
https://doi.org/10.1103/physrevlett.109.013201