Zobrazeno 1 - 10
of 635
pro vyhledávání: '"Roman SOBOLEWSKI"'
Autor:
Roman Adam, Derang Cao, Daniel E. Bürgler, Sarah Heidtfeld, Fangzhou Wang, Christian Greb, Jing Cheng, Debamitra Chakraborty, Ivan Komissarov, Markus Büscher, Martin Mikulics, Hilde Hardtdegen, Roman Sobolewski, Claus M. Schneider
Publikováno v:
npj Spintronics, Vol 2, Iss 1, Pp 1-8 (2024)
Abstract The mechanism of THz generation in ferromagnet/metal (F/M) bilayers has been typically ascribed to the inverse spin Hall effect (ISHE). Here, we fabricated Pt/Fe/Cr/Fe/Pt multilayers containing two back-to-back spintronic THz emitters separa
Externí odkaz:
https://doaj.org/article/af84356d081249bfb391cf35b5bd4f6f
Autor:
Debamitra Chakraborty, Bradley N. Mills, Jing Cheng, Ivan Komissarov, Scott A. Gerber, Roman Sobolewski
Publikováno v:
ACS Omega, Vol 8, Iss 11, Pp 9925-9933 (2023)
Externí odkaz:
https://doaj.org/article/a0e0113ea578454d8d01623c72c3cb1d
Autor:
Debamitra Chakraborty, Robert Boni, Bradley N. Mills, Jing Cheng, Ivan Komissarov, Scott A. Gerber, Roman Sobolewski
Publikováno v:
Sensors, Vol 24, Iss 7, p 2066 (2024)
Transient terahertz time-domain spectroscopy (THz-TDS) imaging has emerged as a novel non-ionizing and noninvasive biomedical imaging modality, designed for the detection and characterization of a variety of tissue malignancies due to their high sign
Externí odkaz:
https://doaj.org/article/99a7c5511aa04a3194a07483114f7511
Autor:
Mikulics, Martin, Adam, Roman, Roman Sobolewski, Heidtfeld, Sarah, Cao, Derang, Bürgler, Daniel E., Schneider, Claus M., Mayer, Joachim, Hardtdegen, Hilde Helen
Publikováno v:
In FlatChem November 2022 36
Autor:
Martin Mikulics, Roman Adam, Genyu Chen, Debamitra Chakraborty, Jing Cheng, Anthony Pericolo, Ivan Komissarov, Daniel E. Bürgler, Sarah F. Heidtfeld, John Serafini, Stefan Preble, Roman Sobolewski, Claus M. Schneider, Joachim Mayer, Hilde H. Hardtdegen
Publikováno v:
Crystals, Vol 13, Iss 8, p 1267 (2023)
The increase of device lifetime and reliability of THz photomixers will play an essential role in their possible future application. Therefore, their optimal work conditions/operation range, i.e., the maximal incident optical power should be experime
Externí odkaz:
https://doaj.org/article/afbcb2fb73534303bbd335bace081f0e
Autor:
Genyu Chen, Debamitra Chakraborty, Jing Cheng, Martin Mikulics, Ivan Komissarov, Roman Adam, Daniel E. Bürgler, Claus M. Schneider, Hilde Hardtdegen, Roman Sobolewski
Publikováno v:
Crystals, Vol 12, Iss 11, p 1635 (2022)
We present comprehensive studies on the emission of broadband, free-space THz transients from several highly resistive GaAs samples excited by femtosecond optical pulses. Our test samples are characterized by different degrees of disorder, ranging fr
Externí odkaz:
https://doaj.org/article/4c565dd9995f4d62892293fbd3468b10
Autor:
Henry Chen, Sue Kutcher, Julie Wen, Sudhir Trivedi, Jing Cheng, Genyu Chen, Debamitra Chakraborty, Ivan Komissarov, Roman Sobolewski
Publikováno v:
IEEE Transactions on Nuclear Science. 70:286-291
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::521225a563209a3bbd985dc67165e17d
https://doi.org/10.1109/tns.2023.3242471
https://doi.org/10.1109/tns.2023.3242471
Autor:
Sarah Heidtfeld, Roman Adam, Takahide Kubota, Koki Takanashi, Derang Cao, Carolin Schmitz-Antoniak, Daniel E. Bürgler, Fangzhou Wang, Christian Greb, Genyu Chen, Ivan Komissarov, Hilde Hardtdegen, Martin Mikulics, Roman Sobolewski, Shigemasa Suga, Claus M. Schneider
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043025 (2021)
We generated pulses of electromagnetic radiation in the terahertz (THz) frequency range by optical excitation of Co_{2}Fe_{0.4}Mn_{0.6}Si (CFMS)/normal-metal (NM) bilayer structures. The CFMS is a Heusler alloy showing a band gap in one spin channel
Externí odkaz:
https://doaj.org/article/6f8082f62895429cb6753dd9d920d87e
Autor:
Loic H. Djamen Tchapda, Anindya Bal, Sami A. Nazib, Troy A. Hutchins-Delgado, Hosuk Lee, Mark V. Reymatias, Erika M. Sommer, Ivan Komissarov, John Nogan, Tzu-Ming Lu, Roman Sobolewski, Marek Osinski
Publikováno v:
Physics and Simulation of Optoelectronic Devices XXXI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e6dce0cc97e1aba37fd5918e30e0d82
https://doi.org/10.1117/12.2654772
https://doi.org/10.1117/12.2654772
Autor:
Debamitra Chakraborty, Bradley N. Mills, Jing Cheng, Ivan Komissarov, Scott A. Gerber, Roman Sobolewski
Publikováno v:
2022 IEEE Western New York Image and Signal Processing Workshop (WNYISPW).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10f4bb2533269c42f19a6647e4a3b250
https://doi.org/10.1109/wnyispw57858.2022.9983490
https://doi.org/10.1109/wnyispw57858.2022.9983490