Zobrazeno 1 - 10
of 1 332
pro vyhledávání: '"Kemppinen, A."'
Autor:
Priyadarshi, Shekhar, Kieler, Oliver, Scarioni, Alexander Fernandez, Felgner, Judith, Widaa, Abdulrahman, Kohlmann, Johannes, Fordell, Thomas, Nissilä, Jaani, Kemppinen, Antti, Bieler, Mark
We demonstrate a cryogenic electro-optic sampling (EOS) setup that allows for the measurement of microwave signals at arbitrary positions on a cryogenic chip-scale device. We use a Josephson Arbitrary Waveform Synthesizer (JAWS) to generate quantum-a
Externí odkaz:
http://arxiv.org/abs/2411.00162
Autor:
Hätinen, J., Ronzani, A., Loreto, R. P., Mykkänen, E., Kemppinen, A., Viisanen, K., Rantanen, T., Geisor, J., Lehtinen, J., Ribeiro, M., Kaikkonen, J-P., Prakash, O., Vesterinen, V., Förbom, W., Mannila, E. T., Kervinen, M., Govenius, J., Prunnila, M.
Replacing the bulky cryo-liquid based cooling stages of cryo-enabled instruments by chip scale refrigeration is envisioned to disruptively reduce the system size similarly as microprocessors did for computers. Electronic refrigerators based on superc
Externí odkaz:
http://arxiv.org/abs/2403.08655
Autor:
Maliniemi, Tuija, Tukiainen, Helena, Hjort, Jan, Toivanen, Maija, Vernham, Grant, Bailey, Joseph J., Baines, Oliver, Benniston, Lucy, Brilha, José, Field, Richard, Fox, Nathan, Gray, Murray, Grytnes, John-Arvid, Huusko, Karoliina, Kemppinen, Julia, Pereira, Paulo, Salminen, Henriikka, Schrodt, Franziska, Turner, Laura, Alahuhta, Janne
Publikováno v:
Diversity and Distributions, 2024 Jun 01. 30(6), 1-7.
Externí odkaz:
https://www.jstor.org/stable/48771601
Autor:
Kohopää, Katja, Ronzani, Alberto, Jabdaraghi, Robab Najafi, Bera, Arijit, Ribeiro, Mário, Hazra, Dibyendu, Senior, Jorden, Prunnila, Mika, Govenius, Joonas, Lehtinen, Janne S., Kemppinen, Antti
We demonstrate ion irradiation by argon or gallium as a wafer-scale post-processing method to increase disorder in superconducting thin films. We study several widely used superconductors, both single-elements and compounds. We show that ion irradiat
Externí odkaz:
http://arxiv.org/abs/2303.11202
Autor:
Hätinen, Joel, Mykkänen, Emma, Viisanen, Klaara, Ronzani, Alberto, Kemppinen, Antti, Lehtisyrjä, Lassi, Lehtinen, Janne S., Prunnila, Mika
Publikováno v:
Thermal resistance in superconducting flip-chip assemblies. Appl. Phys. Lett. 1 October 2023; 123 (15): 152202
Cryogenic microsystems that utilize different 3D integration techniques are being actively developed, e.g., for the needs of quantum technologies. 3D integration can introduce opportunities and challenges to the thermal management of low temperature
Externí odkaz:
http://arxiv.org/abs/2303.01228
Autor:
Paloma Ruiz Kärkkäinen, Georgi Popov, Timo Hatanpää, Antti Kemppinen, Katja Kohopää, Mohammad Bagheri, Hannu‐Pekka Komsa, Mikko Heikkilä, Kenichiro Mizohata, Mykhailo Chundak, Petro Deminskyi, Anton Vihervaara, Mário Ribeiro, Joel Hätinen, Joonas Govenius, Matti Putkonen, Mikko Ritala
Publikováno v:
Advanced Materials Interfaces, Vol 11, Iss 26, Pp n/a-n/a (2024)
Abstract The development of deposition processes for metal carbide thin films is rapidly advancing, driven by their potential for applications including catalysis, batteries, and semiconductor devices. Within this landscape, atomic layer deposition (
Externí odkaz:
https://doaj.org/article/ad29c00f170c431f87c2eb643717cca5
Publikováno v:
In Computers and Education Open June 2024 6
Publikováno v:
Computers and Education Open, Vol 6, Iss , Pp 100172- (2024)
A common dilemma in educational game design is identifying the right balance between freedom and structure. Too much structure limits constructive learning and curiosity, while too much freedom diverts focus away from the educational content. How can
Externí odkaz:
https://doaj.org/article/973c1ab56f8d4fb3bb9ef5d1fdde6895
Autor:
Mykkänen, E., Lehtinen, J. S., Ronzani, A., Kemppinen, A., Alkurdi, A., Chapuis, P. -O., Prunnila, M.
Publikováno v:
IEEE International Electron Devices Meeting (IEDM), 2020, pp. 25.8.1-25.8.4
Refrigeration is an important enabler for quantum technology. The very low energy of the fundamental excitations typically utilized in quantum technology devices and systems requires temperature well below 1 K. Expensive cryostats are utilized in rea
Externí odkaz:
http://arxiv.org/abs/2209.07275
Autor:
Katja Kohopää, Alberto Ronzani, Robab Najafi Jabdaraghi, Arijit Bera, Mário Ribeiro, Dibyendu Hazra, Jorden Senior, Mika Prunnila, Joonas Govenius, Janne S. Lehtinen, Antti Kemppinen
Publikováno v:
APL Materials, Vol 12, Iss 7, Pp 071101-071101-8 (2024)
We demonstrate ion irradiation by argon or gallium as a wafer-scale post-processing method to increase disorder in superconducting thin films. We study several widely used superconductors, both single-elements and compounds. We show that ion irradiat
Externí odkaz:
https://doaj.org/article/90d8b57d346b4bceba17ebce38fa4dfa