Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Alexandru Craciun"'
Publikováno v:
Romanian Journal of Petroleum & Gas Technology, Vol 4, Iss 2, Pp 41-48 (2023)
For any person, company or institution, to secure goods, data, information, different methods were sought and thus the idea of access control appeared. Access control can be done by mobile phone, PIN code, access cards and, perhaps, the most secure w
Externí odkaz:
https://doaj.org/article/c55cfbac54f74b6faf2f4b2dcffaa0a9
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract An optical system comprising a c-cut uniaxial crystal positioned between two axicons and illuminated by a Gaussian or a Laguerre–Gauss mode was used to demonstrate the generation of various vector vortex beams. We focused the generated bea
Externí odkaz:
https://doaj.org/article/3cd032cea4be453fa1268ee92c9d43de
Publikováno v:
Scientific reports. 12(1)
An optical system comprising a c-cut uniaxial crystal positioned between two axicons and illuminated by a Gaussian or a Laguerre–Gauss mode was used to demonstrate the generation of various vector vortex beams. We focused the generated beams using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa73d6964954de74cf5116dae7e4ce96
https://pubmed.ncbi.nlm.nih.gov/35581316
https://pubmed.ncbi.nlm.nih.gov/35581316
Autor:
Norocel Codreanu, Paul Schiopu, F. Vasile, Marian Vladescu, Alexandru Craciun, Silviu Ionita, Iulian Busu, Madalin Vasile Moise, Valentin Feies, Marian Raducu
Publikováno v:
2021 13th International Conference on Electronics, Computers and Artificial Intelligence (ECAI).
In this paper we present the design of an electronic circuit which implements a differential measurement technique for detecting the presence of an explosive substance by using resonant sensors. Two TF-BAR sensors, with resonance frequencies of about
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bda073c40b88b05708734995396dbcfc
https://doi.org/10.1109/ecai52376.2021.9515059
https://doi.org/10.1109/ecai52376.2021.9515059
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
An optical vortex (OV) has a number of intrinsic properties, such as spiral phase structure, hollow-core intensity distribution or orbital angular momentum, which leads to many interesting applications in the field of frontier research, like cold ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44b2aa3c528de71b598a082cfb47d55
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542502
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542502
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Vector beams (VB) are optical beams with a variable polarization state on the transversal section of the beam. The more standard VB are composed of two complex conjugated modes with orthogonal polarization states. Specific applications of VB are begi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad2f65d7c74ff971ea6d04b50323ca6
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542757
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542757
Autor:
Traian Dascalu, Alexandru Craciun
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Structured light applications [1] , [2] require introducing a phase aberration to shape the beam for a specific purpose and with these applications, often strong focusing is involved. The demand for modeling algorithms to handle every regime of propa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e80cf7515bce0996d5a976cf370ca31
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542622
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542622
Autor:
Victor Damian, Adrian Tulbure, Ana Bărar, Marian Vladescu, Paul Schiopu, A. E. Marcu, Alexandru Craciun
Publikováno v:
Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X.
Time-Domain Terahertz Spectroscopy (TDTS) is a rapidly developing measurement technique constantly finding new applications in various areas of materials science such as measurements of material constants of solids [1]. Terahertz frequencies i.e. fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::678853944e840ee6e3aecb03a92200fc
https://doi.org/10.1117/12.2571746
https://doi.org/10.1117/12.2571746
Autor:
Paul Schiopu, Valentin-Gabriel Voiculescu, Nicolae Vasiliu, Valentin Feies, Marian Vladescu, Alexandru Craciun, Virgil Muraru, Sebastian Lucian Muraru
Publikováno v:
Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X.
Technical innovation in agriculture is of extreme importance, in particular to address global challenges such as population growth, climate change and the limited availability of important plant nutrients such as phosphorus and potassium. Sensors app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9176d0c031171f7d656fdd2113e651ea
https://doi.org/10.1117/12.2571236
https://doi.org/10.1117/12.2571236