Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Anastasios D. Koulouklidis"'
Autor:
Anastasios D. Koulouklidis, Claudia Gollner, Valentina Shumakova, Vladimir Yu. Fedorov, Audrius Pugžlys, Andrius Baltuška, Stelios Tzortzakis
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Powerful terahertz pulses are generated during the nonlinear propagation of ultrashort laser pulses in gases. Here, the authors demonstrate efficient sub-cycle THz pulse generation by using two-color midinfrared femtosecond laser filaments in ambient
Externí odkaz:
https://doaj.org/article/cbf35a10595242af8088b5390c11e83f
Autor:
Indranuj Dey, Kamalesh Jana, Vladimir Yu. Fedorov, Anastasios D. Koulouklidis, Angana Mondal, Moniruzzaman Shaikh, Deep Sarkar, Amit D. Lad, Stelios Tzortzakis, Arnaud Couairon, G. Ravindra Kumar
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Developing simple and efficient table-top sources of intense terahertz radiation is an ongoing pursuit. Here, Dey et al. demonstrate broadband terahertz generation from laser filamentation in liquids with an order of magnitude higher energy than from
Externí odkaz:
https://doaj.org/article/283b72f52315457ebbdc32020afe47a6
Autor:
Ioannis Katsantonis, Maria Manousidaki, Anastasios D. Koulouklidis, Christina Daskalaki, Ioannis Spanos, Constantinos Kerantzopoulos, Anna C. Tasolamprou, Costas M. Soukoulis, Eleftherios N. Economou, Stelios Tzortzakis, Maria Farsari, Maria Kafesaki
Publikováno v:
Advanced Optical Materials.
Optical activity (polarization rotation of light) is one of the most desired features of chiral media, as it is important for many polarization related applications. However, in the THz region, chiral media with strong optical activity are not availa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5058c515f307acde54a28f764b4836fc
https://doi.org/10.1002/adom.202300238
https://doi.org/10.1002/adom.202300238
Autor:
Anastasios D. Koulouklidis, Anna C. Tasolamprou, Spyros Doukas, Eudokia Kyriakou, M. Said Ergoktas, Christina Daskalaki, Eleftherios N. Economou, Coskun Kocabas, Elefterios Lidorikis, Maria Kafesaki, Stelios Tzortzakis
Interaction of intense terahertz (THz) waves with graphene based modulation devices holds great potential for the optoelectronic applications of the future. Here, we present a thin film graphene-based THz perfect absorbing device whose absorption and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::760c61b155616c212c25e2afd489ec44
https://zenodo.org/record/7093636
https://zenodo.org/record/7093636
Autor:
Claudia Gollner, Valentina Shumakova, Audrius Pugžlys, Anastasios D. Koulouklidis, Stelios Tzortzakis, Vladimir Yu. Fedorov, Andrius Baltuška
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Nature Communications
Nature Communications
Extreme nonlinear interactions of THz electromagnetic fields with matter are the next frontier in nonlinear optics. However, reaching this frontier in free space is limited by the existing lack of appropriate powerful THz sources. Here, we experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86257ea30541b4053389fa6655e18f89
https://doaj.org/article/cbf35a10595242af8088b5390c11e83f
https://doaj.org/article/cbf35a10595242af8088b5390c11e83f
Autor:
Anastasios D. Koulouklidis, Dimitris Mansour, Vladimir Yu. Fedorov, Dimitris G. Papazoglou, Stelios Tzortzakis
Publikováno v:
Optics letters. 47(5)
We experimentally demonstrate that 2D Airy wave packets can produce intense curved two-color filaments that emit terahertz (THz) radiation with unique characteristics. Due to the curvature of the plasma channel, THz waves, emitted from different long
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbba72ce78e53c122dbfbf53577b2083
https://pubmed.ncbi.nlm.nih.gov/35230349
https://pubmed.ncbi.nlm.nih.gov/35230349
Autor:
Panagiotis Konstantakis, Paul E. Dufour, Maria Manousidaki, Anastasios D. Koulouklidis, Stelios Tzortzakis
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate controllable spectral shaping of supercontinuum radiation through intense femtosecond laser filamentation in ethanol. Neural networks are shown to predict robust results even under the presence of high-order nonlinearities and noise.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::380c80711cfc1278abc433545f9b85fb
https://doi.org/10.1364/cleo_at.2022.jtu3b.23
https://doi.org/10.1364/cleo_at.2022.jtu3b.23
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate that thermal effects limiting femtosecond laser filamentation in gases can be addressed using a simple gas replenishment method. This enables high average power filamentation applications like THz sources.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4f7b58274d0197fb292112e46e00ede
https://doi.org/10.1364/cleo_qels.2022.fth4a.4
https://doi.org/10.1364/cleo_qels.2022.fth4a.4
Autor:
Panagiotis Konstantakis, Paul E. Dufour, Maria Manousidaki, Anastasios D. Koulouklidis, Stelios Tzortzakis
Publikováno v:
Optics Letters. 47:5445
We report the spectral shaping of supercontinuum generation in liquids by employing properly engineered Bessel beams coupled with artificial neural networks. We demonstrate that given a custom spectrum, neural networks are capable of outputting the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af32f2c27d9be41483cbf1a907eafc98
https://doi.org/10.1364/ol.466287
https://doi.org/10.1364/ol.466287
Autor:
Anastasios D. Koulouklidis
Κατά την τελευταία δεκαετία, χάρη στην τεράστια τεχνολογική ανάπτυξη στην φωτονική επιστήμη και την επιστήμη υλικών, η περιοχή συχνοτήτ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e5a34d8ce4276bd57395ef007ea585
https://doi.org/10.12681/eadd/39960
https://doi.org/10.12681/eadd/39960