Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Pasi Vahimaa"'
Publikováno v:
Journal of Research in Innovative Teaching & Learning, Vol 16, Iss 2, Pp 239-252 (2023)
Purpose – Schools have a significant role in ensuring children's wellbeing as children spend a lot of time at school. Students need to have an active role in their learning and an opportunity to participate in issues concerning wellbeing and studyi
Externí odkaz:
https://doaj.org/article/023a2add72aa46ba983e8dd501aee062
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
Abstract We propose direct synthesis of ultra-thin graphitic films on a dielectric substrate using sacrificial Ni catalyst layer, which significantly increases the crystallinity of the photoresist pyrolyzed at the temperature of 800 °C and above. A
Externí odkaz:
https://doaj.org/article/eaa97ad79bdb4fd0b9d70fbac44d0220
Publikováno v:
Journal of Research in Innovative Teaching & Learning.
PurposeSchools have a significant role in ensuring children's wellbeing as children spend a lot of time at school. Students need to have an active role in their learning and an opportunity to participate in issues concerning wellbeing and studying. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8164956feb21d381b1fa6057352d7d1
https://doi.org/10.1108/jrit-03-2022-0012
https://doi.org/10.1108/jrit-03-2022-0012
Publikováno v:
Applied Surface Science. 387:595-602
SiO 2 inverse opal (IO) films with embedded gold nanoparticles (AuNPs) for surface-enhanced Raman scattering (SERS) application are reported. SiO 2 IO films were loaded with AuNPs by a simple infiltration in a single cycle to form Au-SiO 2 IOs. The o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb617cf4228fc0900e295a899292d968
https://doi.org/10.1016/j.apsusc.2016.06.063
https://doi.org/10.1016/j.apsusc.2016.06.063
Autor:
Tuula T. Pakkanen, Seppo Honkanen, Petri Stenberg, Pasi Vahimaa, Salman Daniel, Tarmo Nuutinen, Mika Suvanto, Antti Matikainen, Henna Stenberg
Publikováno v:
Macromolecular Materials and Engineering. 300:386-390
Self-organized pattern formation is a phenomenon that can be used for nanoscale pattering of large surface areas in a cost-effective manner. We exploit the phenomenon and fabricate sub-micron polystyrene wrinkle structures and demonstrate that after
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23d1736529c57567c2dd05f501d19711
https://doi.org/10.1002/mame.201400391
https://doi.org/10.1002/mame.201400391
Publikováno v:
Journal of Colloid and Interface Science. 437:119-123
Surface Enhanced Raman Scattering (SERS) is gaining popularity among analytical methods in biosciences and sensor technology since it provides high specificity, non-destructiveness, and the unique fingerprint spectra of the molecules. Historically, g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3140e8255d99309f831d58dab93aa9c
https://doi.org/10.1016/j.jcis.2014.09.037
https://doi.org/10.1016/j.jcis.2014.09.037
Publikováno v:
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
Scientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
We propose direct synthesis of ultra-thin graphitic films on a dielectric substrate using sacrificial Ni catalyst layer, which significantly increases the crystallinity of the photoresist pyrolyzed at the temperature of 800 °C and above. A considera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99b5666b90f6e32fc768e422e3ac3ad2
Publikováno v:
Wlodarczyk, K, Kaakkunen, J J J, Vahimaa, P & Hand, D P 2014, ' Efficient speckle-free laser marking using a spatial light modulator ', Applied Physics A: Materials Science and Processing, vol. 116, no. 1, pp. 111-118 . https://doi.org/10.1007/s00339-013-8186-1
An approach for laser marking surfaces using a liquid–crystal-based spatial light modulator (LC-SLM) for beam patterning and manipulation is presented, designed to avoid the speckle interference problem which is a typical drawback of current SLM-ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5819902687cf60ceb30baab8e1d15b0e
https://doi.org/10.1007/s00339-013-8186-1
https://doi.org/10.1007/s00339-013-8186-1
Publikováno v:
Silvennoinen, M, Kaakkunen, J, Päiväsaari, K & Vahimaa, P 2013, ' Parallel Microstructuring using Femtosecond Laser and Spatial Light Modulator ', Physics Procedia, vol. 41, pp. 693-697 . https://doi.org/10.1016/j.phpro.2013.03.135
The spatial light modulator together with the computer generated holograms can be used to shape laser beam to correspond for specific need of the micromachining task. Especially dividing the original laser energy to beam array enables high degree of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25b8ab3064861569789e2f8c2ad37ebd
Publikováno v:
Anal. Methods. 5:281-284
Most biomedical applications are based on the light–matter interaction; the measurement of absorption, scattering or fluorescence at the visible and near visible region of the electromagnetic spectrum. This can be enhanced with nanophotonical devic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d706b5ecd256c20053029ae1a214e2
https://doi.org/10.1039/c2ay25470k
https://doi.org/10.1039/c2ay25470k