<div class="csl-bib-body">
<div class="csl-entry">Ramer, G. (2024, April 18). <i>Nanoscale mid-IR imaging in water (on a budget)</i> [Conference Presentation]. SpringSciX 2024, University of Strathclyde, United Kingdom of Great Britain and Northern Ireland (the). http://hdl.handle.net/20.500.12708/207979</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/207979
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dc.description.abstract
Atomic force microscopy infrared spectroscopy (AFM-IR) uses photothermal expansion to transduce local infrared absorption at < 10 nm spatial resolution. Due to its ease of use and its ability to directly yield infrared absorption spectra without the need for modeling this technique has been applied to life science (sub-cellular imaging, single protein spectroscopy), material science (polymers, interfaces) and photonics (modal shapes in 2D materials) and other fields.
While some tentative first steps in AFM-IR in liquid have been made in recent years and even though liquid AFM-IR promises nanoscale resolution chemical analysis of solid-liquid reactions and imaging of life microorganisms, is still far from routine use or wide adoption.
In this work we address one of the more pressing technical issues that currently preclude wider use of liquid phase AFM-IR: the costly and unwieldy ZnSe prism sample carriers required for attenuated total reflection bottom illumination geometries. We show how they can be replaced by micro-machined Si wafers. These wafers are more flexible, chemically robust and cost effective then conventional sample carrier prisms.
Through optical simulations (transfer matrix method, ray optics and finite difference time domain) we show that the micromachined wafers provide a depth of penetration comparable to that of conventional ZnSe prisms, exhibit small change in focal position during scanning and no optical hot spots or interference that might be detrimental to reproducible AFM-IR measurements. We demonstrate the use of these carriers in air and water experimentally.
en
dc.description.sponsorship
European Commission
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dc.description.sponsorship
European Commission
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dc.language.iso
en
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dc.subject
AFM-IR
en
dc.subject
nanoscale
en
dc.subject
liquid
en
dc.title
Nanoscale mid-IR imaging in water (on a budget)
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
8619858
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dc.relation.grantno
953234
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dc.type.category
Conference Presentation
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tuw.project.title
High-Performance Large Area Organic Perovskite devices for lighting, energy and Pervasive Communications
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tuw.project.title
Tumor und Lymphknoten auf einer Chip Plattform für Krebsstudien
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
Q1
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tuw.researchTopic.id
C6
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Photonics
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
40
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tuw.researchTopic.value
30
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tuw.researchTopic.value
30
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tuw.publication.orgunit
E164-02-1 - Forschungsgruppe Prozessanalytik
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tuw.author.orcid
0000-0001-8307-5435
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tuw.event.name
SpringSciX 2024
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tuw.event.startdate
17-04-2024
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tuw.event.enddate
19-04-2024
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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
University of Strathclyde
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tuw.event.country
GB
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tuw.event.presenter
Ramer, Georg
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tuw.event.track
Multi Track
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wb.sciencebranch
Chemie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
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crisitem.author.orcid
0000-0001-8307-5435
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crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
