<div class="csl-bib-body">
<div class="csl-entry">Tropper, T. M., Giesriegl, A., Cavalleri, N., West, R. G., Kanellopulos, K., Hiesberger, J., Schmid, S., & Thomas Tropper, A. G., Nicola Cavalleri, Jelena Timarac-Popović, Robert West, Kostas Kanellopulos, Johannes Hiesberger and Silvan Schmid. (2025, June 3). <i>Nanomechanical Photothermal Scanning Microscopy and Spectroscopy</i> [Poster Presentation]. FNS 2025 (Frontiers of Nanomechanical Systems), Atsugi, Japan. http://hdl.handle.net/20.500.12708/216895</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/216895
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dc.description.abstract
Nanomechanical resonators have been shown to have a huge field of application because of their extraordinary properties, ranging from atomic force microscopy to mechanical qubits [1,2]. A special property of these nanomechanical resonators is their photothermal frequency response: The absorbed power of a light source with defined wavelength will cause a shift in the resonance frequency of the resonator (Fig. a). Hence, by adding molecules or proteins as absorbers, this can be used for spectroscopy applications [3].
Figure 1: (a) Schematic: Absorbed laser power resulting in a change of resonance frequency. (b) A photothermal scanning microscopy image of two Atto633 accumulations. (c) Measured absorption spectrum and reference spectrum of Atto633. In our method, we are using a highly focused UV-Vis light source in combination with a scanning stage to reach spatially resolved images of Atto633 (Fig. b). Furthermore, by changing the wavelength of the light source, a full UV-Vis spectrum of each point on the resonator can be obtained and finally translated back into an absorption spectrum (Fig. c). Since this method offers both spectral and spatial resolution of the target substance, it is a promising alternative to more established spectroscopy methods. We present a full experimental setup realizing photothermal scanning microscopy and spectroscopy covering a spectral range from ultraviolet to near infrared on the example of the well-known color agent Atto633 as a proof of concept for this method. Our method was able to resolve several femtograms of Atto633 promising to reach even lower concentrations in the near future with the final goal of single molecule and protein resolution.
This work is part of the collaboration project MASMONADE funded by Novo Nordisk
en
dc.description.sponsorship
Novo Nordisk Foundation
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dc.language.iso
en
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dc.subject
nanomechanical sensor
en
dc.subject
photothermal spectroscopy
en
dc.subject
photothermal microscopy
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dc.title
Nanomechanical Photothermal Scanning Microscopy and Spectroscopy
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
TU Wien (Vienna, AT)
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dc.relation.grantno
0077964
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dc.type.category
Poster Presentation
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tuw.project.title
Multi-modale Analyse von Einzelmolekülen mit nanomechanischen Detektoren
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
Q1
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tuw.researchTopic.id
M6
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Photonics
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tuw.researchTopic.name
Biological and Bioactive Materials
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tuw.researchTopic.value
40
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tuw.researchTopic.value
40
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tuw.researchTopic.value
20
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tuw.publication.orgunit
E366-01 - Forschungsbereich Mikro- und Nanosensorik
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tuw.author.orcid
0000-0002-5982-9724
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tuw.author.orcid
0000-0002-1769-5094
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tuw.author.orcid
0000-0003-3778-7137
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tuw.event.name
FNS 2025 (Frontiers of Nanomechanical Systems)
en
tuw.event.startdate
03-06-2025
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tuw.event.enddate
06-06-2025
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Atsugi
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tuw.event.country
JP
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tuw.event.institution
NTT Basic Research Laboratories
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tuw.event.presenter
Tropper, Thomas Mathias
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tuw.event.track
Single Track
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wb.sciencebranch
Elektrotechnik, Elektronik, Informationstechnik
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wb.sciencebranch.oefos
2020
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wb.sciencebranch.value
100
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dc.contributor.authorgroup
Thomas Tropper, Ariane Giesriegl, Nicola Cavalleri, Jelena Timarac-Popović, Robert West, Kostas Kanellopulos, Johannes Hiesberger and Silvan Schmid
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.fulltext
no Fulltext
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item.openairetype
conference poster not in proceedings
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
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item.grantfulltext
none
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crisitem.project.funder
Novo Nordisk Foundation
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crisitem.project.grantno
0077964
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crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
-
crisitem.author.dept
E366-01 - Forschungsbereich Mikro- und Nanosensorik
