<div class="csl-bib-body">
<div class="csl-entry">Sam, S., Waclawek, J. P., Moser, H., Pinto, D., Gazizov, I., O’Faolain, L., & Lendl, B. (2024, April 21). <i>Implementation of Bow-Tie Cavity for Photothermal Spectroscopy</i> [Poster Presentation]. ECONOS 2024 (European Conference On Non-Linear Optical Spectroscopy), Wien, Austria. http://hdl.handle.net/20.500.12708/206181</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/206181
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dc.description.abstract
In Photothermal Spectroscopy (PTS) system, the signal strength is shown to increase with optical power while being inversely proportional to the mode field volume [1]. A 2-mirror optical cavity offers power amplification and tight focusing beam but is limited in stability for small beam sizes [2] particularly when there is a requirement to tune the cavity length, and it requires an isolator to prevent laser feedback. In this work, the Bow-Tie cavity comprising 4 mirrors is introduced to address these limitations, enabling PTS signal enhancement while maintaining stability. The study includes ABCD Matrix theory and Ray tracing time-dependent simulation. The cavity is characterized in air. The PTS experiment is conducted in the near-infrared region to detect methane resulting minimum detectable concentration 20 ppm which is not achievable in absorption spectroscopy with the same optical components. For demodulation bandwidth 12.4 mHz and laser power 10 mW, the normalized noise equivalent absorption 5.75 × 10-7 cm-1 W Hz1/2 is obtained.
en
dc.language.iso
en
-
dc.subject
Bow-Tie Cavity
en
dc.subject
Photothermal Spectroscopy
en
dc.subject
Methane
en
dc.title
Implementation of Bow-Tie Cavity for Photothermal Spectroscopy
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
TU Wien, Austria
-
dc.contributor.affiliation
Munster Technological University, Ireland
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dc.type.category
Poster Presentation
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tuw.researchTopic.id
Q1
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tuw.researchTopic.id
C6
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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
60
-
tuw.researchTopic.value
40
-
tuw.publication.orgunit
E164-02-1 - Forschungsgruppe Prozessanalytik
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tuw.author.orcid
0009-0008-1310-8906
-
tuw.author.orcid
0000-0003-0291-487X
-
tuw.author.orcid
0000-0002-6021-4997
-
tuw.author.orcid
0000-0002-7143-4039
-
tuw.author.orcid
0000-0003-1160-7441
-
tuw.author.orcid
0000-0003-3838-5842
-
tuw.event.name
ECONOS 2024 (European Conference On Non-Linear Optical Spectroscopy)
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tuw.event.startdate
21-04-2024
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tuw.event.enddate
24-04-2024
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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
Wien
-
tuw.event.country
AT
-
tuw.event.institution
University of Vienna
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tuw.event.presenter
Sam, Savda
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wb.sciencebranch
Chemie
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1040
-
wb.sciencebranch.oefos
1030
-
wb.sciencebranch.value
50
-
wb.sciencebranch.value
50
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item.cerifentitytype
Publications
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item.languageiso639-1
en
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item.fulltext
no Fulltext
-
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
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
Munster Technological University
-
crisitem.author.dept
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.orcid
0000-0003-0291-487X
-
crisitem.author.orcid
0000-0002-6021-4997
-
crisitem.author.orcid
0000-0002-7143-4039
-
crisitem.author.orcid
0000-0003-1160-7441
-
crisitem.author.orcid
0000-0003-3838-5842
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164 - Institut für Chemische Technologien und Analytik
