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Foltynowicz, AleksandraORCID iD iconorcid.org/0000-0002-6191-7926
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Publikationer (10 of 124) Visa alla publikationer
Rolla, D. T., Jaworski, P., Wu, D., Yu, F., Foltynowicz, A., Krzempek, K. & Sobon, G. (2024). Mid-infrared optical frequency comb spectroscopy using an all-silica antiresonant hollow-core fiber. Optics Express, 32(6), 10679-10689
Öppna denna publikation i ny flik eller fönster >>Mid-infrared optical frequency comb spectroscopy using an all-silica antiresonant hollow-core fiber
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2024 (Engelska)Ingår i: Optics Express, E-ISSN 1094-4087, Vol. 32, nr 6, s. 10679-10689Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We present the first mid-infrared optical frequency comb spectrometer employing an absorption cell based on self-fabricated, all-silica antiresonant hollow-core fiber (ARHCF). The spectrometer is capable of measuring sub-mL sample volumes with 26 m interaction length and noise equivalent absorption sensitivity of 8.3 × 10−8 cm−1 Hz−1/2 per spectral element in the range of 2900 cm−1 to 3100 cm−1. Compared to a commercially available multipass cell, the ARHCF offers a similar interaction length in a 1000 times lower gas sample volume and a 2.8 dB lower transmission loss, resulting in better absorption sensitivity. The broad transmission windows of ARHCFs, in combination with a tunable optical frequency comb, make them ideal for multispecies detection, while the prospect of measuring samples in small volumes makes them a competitive technique to photoacoustic spectroscopy along with the robustness and prospect of coiling the ARHCFs open doors for miniaturization and out-of-laboratory applications.

Ort, förlag, år, upplaga, sidor
Optica Publishing Group, 2024
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-223068 (URN)10.1364/OE.517012 (DOI)2-s2.0-85187792371 (Scopus ID)
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, KAW 2020.0303Vetenskapsrådet, 2020-00238
Tillgänglig från: 2024-04-18 Skapad: 2024-04-18 Senast uppdaterad: 2024-04-18Bibliografiskt granskad
Germann, M., Hjältén, A., Tennyson, J., Yurchenko, S. N., Gordon, I. E., Pett, C., . . . Foltynowicz, A. (2024). Optical frequency comb Fourier transform spectroscopy of formaldehyde in the 1250 to 1390 cm−1 range: experimental line list and improved MARVEL analysis. Journal of Quantitative Spectroscopy and Radiative Transfer, 312, Article ID 108782.
Öppna denna publikation i ny flik eller fönster >>Optical frequency comb Fourier transform spectroscopy of formaldehyde in the 1250 to 1390 cm−1 range: experimental line list and improved MARVEL analysis
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2024 (Engelska)Ingår i: Journal of Quantitative Spectroscopy and Radiative Transfer, ISSN 0022-4073, E-ISSN 1879-1352, Vol. 312, artikel-id 108782Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We use optical frequency comb Fourier transform spectroscopy to record high-resolution, low-pressure, room-temperature spectra of formaldehyde (H212C16O) in the range of 1250 to 1390 cm−1. Through line-by-line fitting, we retrieve line positions and intensities of 747 rovibrational transitions: 558 from the ν6 band, 129 from the ν4 band, and 14 from the ν3 band, as well as 46 from four different hot bands. We incorporate the accurate and precise line positions (0.4 MHz median uncertainty) into the MARVEL (measured active vibration-rotation energy levels) analysis of the H2CO spectrum. This increases the number of MARVEL-predicted energy levels by 82 and of rovibrational transitions by 5382, and substantially reduces uncertainties of MARVEL-derived H2CO energy levels over a large range: from pure rotational levels below 200 cm−1 up to multiply excited vibrational levels at 6000 cm−1. This work is an important step toward filling the gaps in formaldehyde data in the HITRAN database.

Ort, förlag, år, upplaga, sidor
Elsevier, 2024
Nyckelord
Empirical line list, Formaldehyde, Fourier transform spectroscopy, Frequency comb spectroscopy, High-resolution spectroscopy, MARVEL
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-215854 (URN)10.1016/j.jqsrt.2023.108782 (DOI)2-s2.0-85174165539 (Scopus ID)
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, KAW 2015.0159Knut och Alice Wallenbergs Stiftelse, KAW 2020.0303Vetenskapsrådet, 2016-03593Vetenskapsrådet, 2020-00238EU, Horisont 2020, 883830
Tillgänglig från: 2023-11-02 Skapad: 2023-11-02 Senast uppdaterad: 2023-11-10Bibliografiskt granskad
Zakrisson, J., Silander, I., Silva de Oliveira, V., Hjältén, A., Rosina, A., Rubin, T., . . . Axner, O. (2024). Procedure for automated low uncertainty assessment of empty cavity mode frequencies in Fabry-Pérot cavity based refractometry. Optics Express, 32(3), 3959-3973
Öppna denna publikation i ny flik eller fönster >>Procedure for automated low uncertainty assessment of empty cavity mode frequencies in Fabry-Pérot cavity based refractometry
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2024 (Engelska)Ingår i: Optics Express, E-ISSN 1094-4087, Vol. 32, nr 3, s. 3959-3973Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A procedure for automated low uncertainty assessment of empty cavity mode frequencies in Fabry-Pérot cavity based refractometry that does not require access to laser frequency measuring instrumentation is presented. It requires a previously well-characterized system regarding mirror phase shifts, Gouy phase, and mode number, and is based on the fact that the assessed refractivity should not change when mode jumps take place. It is demonstrated that the procedure is capable of assessing mode frequencies with an uncertainty of 30 MHz, which, when assessing pressure of nitrogen, corresponds to an uncertainty of 0.3 mPa.

Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-220868 (URN)10.1364/OE.513708 (DOI)38297605 (PubMedID)2-s2.0-85183822866 (Scopus ID)
Forskningsfinansiär
Vetenskapsrådet, 2020-00238Vetenskapsrådet, 2020-05105Knut och Alice Wallenbergs Stiftelse, 2020.0303Umeå universitet, IDS-18Vinnova, 2018-04570
Tillgänglig från: 2024-02-19 Skapad: 2024-02-19 Senast uppdaterad: 2024-02-19Bibliografiskt granskad
Silva de Oliveira, V., Silander, I., Rutkowski, L., Soboń, G., Axner, O., Lehmann, K. K. & Foltynowicz, A. (2024). Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe. Nature Communications, 15(1), Article ID 161.
Öppna denna publikation i ny flik eller fönster >>Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe
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2024 (Engelska)Ingår i: Nature Communications, E-ISSN 2041-1723, Vol. 15, nr 1, artikel-id 161Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Accurate parameters of molecular hot-band transitions, i.e., those starting from vibrationally excited levels, are needed to accurately model high-temperature spectra in astrophysics and combustion, yet laboratory spectra measured at high temperatures are often unresolved and difficult to assign. Optical-optical double-resonance (OODR) spectroscopy allows the measurement and assignment of individual hot-band transitions from selectively pumped energy levels without the need to heat the sample. However, previous demonstrations lacked either sufficient resolution, spectral coverage, absorption sensitivity, or frequency accuracy. Here we demonstrate OODR spectroscopy using a cavity-enhanced frequency comb probe that combines all these advantages. We detect and assign sub-Doppler transitions in the spectral range of the 3ν3 ← ν3 resonance of methane with frequency precision and sensitivity more than an order of magnitude better than before. This technique will provide high-accuracy data about excited states of a wide range of molecules that is urgently needed for theoretical modeling of high-temperature data and cannot be obtained using other methods.

Ort, förlag, år, upplaga, sidor
Springer Nature, 2024
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-219329 (URN)10.1038/s41467-023-44417-2 (DOI)38167498 (PubMedID)2-s2.0-85181230228 (Scopus ID)
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, KAW 2015.0159Knut och Alice Wallenbergs Stiftelse, KAW 2020.0303Vetenskapsrådet, 2020-00238Kempestiftelserna, JCK 1317.1
Tillgänglig från: 2024-01-12 Skapad: 2024-01-12 Senast uppdaterad: 2024-01-12Bibliografiskt granskad
Hjältén, A., Silva de Oliveira, V., Silander, I., Rosina, A., Rutkowski, L., Sobon, G., . . . Foltynowicz, A. (2023). Accurate measurement and assignment of high rotational energy levels of the 3v3 ← v3 band of methane. In: 2023 conference on lasers and electro-optics, CLEO 2023: . Paper presented at 2023 Conference on Lasers and Electro-Optics, CLEO 2023, San Jose, May 7-12, 2023. IEEE, Article ID STh4L.4.
Öppna denna publikation i ny flik eller fönster >>Accurate measurement and assignment of high rotational energy levels of the 3v3 ← v3 band of methane
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2023 (Engelska)Ingår i: 2023 conference on lasers and electro-optics, CLEO 2023, IEEE, 2023, artikel-id STh4L.4Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

We use optical-optical double-resonance spectroscopy with a high-power continuous wave pump and a cavity-enhanced comb probe to expand sub-Doppler measurements of the 3v3 ← v3 band of CH4 to higher rotational levels. We assign the final states using combination differences, i.e., by reaching the same state using different pump/probe combinations.

Ort, förlag, år, upplaga, sidor
IEEE, 2023
Serie
Quantum Electronics and Laser Science, ISSN 2160-8989
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-217340 (URN)2-s2.0-85176362960 (Scopus ID)9781957171258 (ISBN)9781665455688 (ISBN)
Konferens
2023 Conference on Lasers and Electro-Optics, CLEO 2023, San Jose, May 7-12, 2023
Tillgänglig från: 2023-12-04 Skapad: 2023-12-04 Senast uppdaterad: 2023-12-04Bibliografiskt granskad
Hjältén, A., Silva de Oliveira, V., Silander, I., Rosina, A., Rutkowski, L., Soboń, G., . . . Foltynowicz, A. (2023). Accurate measurement and assignment of high rotational energy levels of the 3ν3 ← ν3 band of methane. In: CLEO 2023: . Paper presented at 2023 Conference on Lasers and Electro-Optics (Science and Innovations), CLEO 2023, San Jose, May 7-12, 2023. Optical Society of America
Öppna denna publikation i ny flik eller fönster >>Accurate measurement and assignment of high rotational energy levels of the 3ν3 ← ν3 band of methane
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2023 (Engelska)Ingår i: CLEO 2023, Optical Society of America, 2023Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

We use optical-optical double-resonance spectroscopy with a high-power continuous wave pump and a cavity-enhanced comb probe to expand sub-Doppler measurements of the 3ν3←ν3 band of CH4 to higher rotational levels. We assign the final states using combination differences, i.e., by reaching the same state using different pump/probe combinations.

Ort, förlag, år, upplaga, sidor
Optical Society of America, 2023
Serie
Technical Digest Serie
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-224115 (URN)10.1364/CLEO_SI.2023.STh4L.4 (DOI)2-s2.0-85191524330 (Scopus ID)9781957171258 (ISBN)
Konferens
2023 Conference on Lasers and Electro-Optics (Science and Innovations), CLEO 2023, San Jose, May 7-12, 2023
Tillgänglig från: 2024-05-27 Skapad: 2024-05-27 Senast uppdaterad: 2024-05-27Bibliografiskt granskad
Germann, M., Hjältén, A., Boudon, V., Richard, C., Tennyson, J., Yurchenko, S., . . . Foltynowicz, A. (2023). High accuracy line lists of CH4 and H2CO in the 8 µm range from optical frequency comb fourier transform spectroscopy. In: 2023 conference on lasers and electro-optics Europe & European quantum electronics conference (CLEO/Europe-EQEC): . Paper presented at 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Munich, June 26-30, 2023. IEEE, Article ID 10232703.
Öppna denna publikation i ny flik eller fönster >>High accuracy line lists of CH4 and H2CO in the 8 µm range from optical frequency comb fourier transform spectroscopy
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2023 (Engelska)Ingår i: 2023 conference on lasers and electro-optics Europe & European quantum electronics conference (CLEO/Europe-EQEC), IEEE, 2023, artikel-id 10232703Konferensbidrag, Publicerat paper (Refereegranskat)
Ort, förlag, år, upplaga, sidor
IEEE, 2023
Serie
Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference, ISSN 2639-5452, E-ISSN 2833-1052
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-216799 (URN)10.1109/CLEO/EUROPE-EQEC57999.2023.10232703 (DOI)2-s2.0-85175718241 (Scopus ID)9798350345995 (ISBN)9798350346008 (ISBN)
Konferens
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Munich, June 26-30, 2023
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, 2015.0159Knut och Alice Wallenbergs Stiftelse, 2020.0303Vetenskapsrådet, 2016-03593EU, Europeiska forskningsrådet, 883830
Tillgänglig från: 2023-11-21 Skapad: 2023-11-21 Senast uppdaterad: 2023-11-21Bibliografiskt granskad
Sadiek, I., Hjältén, A. & Foltynowicz, A. (2023). Line positions and intensities of 12CH3I around 2971 cm-1 from frequency comb fourier transform spectroscopy. In: CLEO 2023: Proceedings. Paper presented at 2023 Conference on Lasers and Electro-Optics, CLEO 2023, San Jose, USA, May 7-12, 2023. Optical Society of America, Article ID JTh2A.100.
Öppna denna publikation i ny flik eller fönster >>Line positions and intensities of 12CH3I around 2971 cm-1 from frequency comb fourier transform spectroscopy
2023 (Engelska)Ingår i: CLEO 2023: Proceedings, Optical Society of America, 2023, artikel-id JTh2A.100Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

We use the high-resolution spectrum of 12CH3I measured using a comb-based Fourier transform spectrometer to extend line assignments to the 2971 cm-1 region and introduce line positions and intensities of the V1 and v3+v1-v3 bands.

Ort, förlag, år, upplaga, sidor
Optical Society of America, 2023
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-216869 (URN)10.1364/CLEO_AT.2023.JTh2A.100 (DOI)2-s2.0-85176309023 (Scopus ID)9781957171258 (ISBN)
Konferens
2023 Conference on Lasers and Electro-Optics, CLEO 2023, San Jose, USA, May 7-12, 2023
Tillgänglig från: 2023-12-12 Skapad: 2023-12-12 Senast uppdaterad: 2024-06-04Bibliografiskt granskad
Hjältén, A., Foltynowicz, A. & Sadiek, I. (2023). Line positions and intensities of the ν1 band of 12CH3I using mid-infrared optical frequency comb Fourier transform spectroscopy. Journal of Quantitative Spectroscopy and Radiative Transfer, 306, Article ID 108646.
Öppna denna publikation i ny flik eller fönster >>Line positions and intensities of the ν1 band of 12CH3I using mid-infrared optical frequency comb Fourier transform spectroscopy
2023 (Engelska)Ingår i: Journal of Quantitative Spectroscopy and Radiative Transfer, ISSN 0022-4073, E-ISSN 1879-1352, Vol. 306, artikel-id 108646Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We present a new spectral analysis of the ν1 and ν3+ν1−ν3 bands of 12CH3I around 2971 cm−1 based on a high-resolution spectrum spanning from 2800 cm–1 to 3160 cm–1, measured using an optical frequency comb Fourier transform spectrometer. From this spectrum, we previously assigned the ν4 and ν3+ν4−ν3 bands around 3060 cm–1 using PGOPHER, and the line list was incorporated in the HITRAN database. Here, we treat the two fundamental bands, ν1 and ν4, together with the perturbing states, 2ν2+ν3 and ν2+2ν6±2, as a four-level system connected via Coriolis and Fermi interactions. A similar four-level system is assumed to connect the two ν3+ν1−ν3 and ν3+ν4−ν3 hot bands, which appear due to the population of the low-lying ν3 state at room temperature, with the 2ν2+2ν3 and ν2+ν3+2ν6±2 perturbing states. This spectroscopic treatment provides a good global agreement of the simulated spectra with experiment, and hence accurate line lists and band parameters of the four connected vibrational states in each system. It also allows revisiting the analysis of the ν4 and ν3+ν4−ν3 bands, which were previously treated as separate bands, not connected to their ν1 and ν3+ν1−ν3 counterparts. Overall, we assign 4665 transitions in the fundamental band system, with an average error of 0.00071 cm–1, a factor of two better than earlier work on the ν1 band using conventional Fourier transform infrared spectroscopy. The ν1 band shows hyperfine splitting, resolvable for transitions with J ≤ 2 × K. Finally, the spectral intensities of 65 lines of the ν1 band and 7 lines of the ν3+ν1−ν3 band are reported for the first time using the Voigt line shape as a model in multispectral fitting. The reported line lists and intensities will serve as a reference for high-resolution molecular spectroscopic databases, and as a basis for line selection in future monitoring applications of CH3I.

Ort, förlag, år, upplaga, sidor
Elsevier, 2023
Nationell ämneskategori
Atom- och molekylfysik och optik Den kondenserade materiens fysik
Identifikatorer
urn:nbn:se:umu:diva-209110 (URN)10.1016/j.jqsrt.2023.108646 (DOI)001007953500001 ()2-s2.0-85159161690 (Scopus ID)
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, 2015.0159Knut och Alice Wallenbergs Stiftelse, 2020.0303Vetenskapsrådet, 2016-03593Vetenskapsrådet, 2020-00238
Tillgänglig från: 2023-06-08 Skapad: 2023-06-08 Senast uppdaterad: 2023-11-13Bibliografiskt granskad
Tomaszewska-Rolla, D., Jaworski, P., Wu, D., Yu, F., Foltynowicz, A., Soboń, G. & Krzempek, K. (2023). Mid-IR optical frequency comb Fourier transform spectroscopy using an antiresonant hollow-core fiber. In: 2023 conference on lasers and electro-optics Europe & European quantum electronics conference (CLEO/Europe-EQEC): . Paper presented at 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Munich, June 26-30, 2023. IEEE, Article ID 10232148.
Öppna denna publikation i ny flik eller fönster >>Mid-IR optical frequency comb Fourier transform spectroscopy using an antiresonant hollow-core fiber
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2023 (Engelska)Ingår i: 2023 conference on lasers and electro-optics Europe & European quantum electronics conference (CLEO/Europe-EQEC), IEEE, 2023, artikel-id 10232148Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Optical frequency combs (OFCs) enable high resolution, sensitivity, and speed in spectroscopic measurements. An efficient way of generating an optical frequency comb in the mid-infrared (mid-IR) is the difference frequency generation (DFG) process, which involves the interaction of two input waves in a non-linear crystal, resulting in the generation of a third wave with a frequency that is the difference in frequency of the two input beams [1]. The classical way of extending the path of light-gas interaction in spectroscopic measurements, thus increasing the sensitivity, is to use multi-pass cells (MPC). However, MPCs have disadvantages related to the difficulty of aligning laser light into the cell or optical fringes. An alternative approach is to use the so-called antiresonant hollow-core fibres (ARHCF) [2]. ARHCFs are characterized by a wide low-loss transmission range in the mid-IR, high quality of the delivered beam, and their air core can be filled with the target gas sample, which makes them well suited for laser-based gas sensing.

Ort, förlag, år, upplaga, sidor
IEEE, 2023
Serie
Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference, ISSN 2833-1052, E-ISSN 2639-5452
Nationell ämneskategori
Atom- och molekylfysik och optik
Identifikatorer
urn:nbn:se:umu:diva-216796 (URN)10.1109/CLEO/EUROPE-EQEC57999.2023.10232148 (DOI)2-s2.0-85175712591 (Scopus ID)9798350345995 (ISBN)9798350346008 (ISBN)
Konferens
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Munich, June 26-30, 2023
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, KAW 2020.0303
Tillgänglig från: 2023-11-21 Skapad: 2023-11-21 Senast uppdaterad: 2023-11-21Bibliografiskt granskad
Projekt
Anmälan om utnyttjande av återvändarbidrag för beviljade postdoktorstipendier [2012-00069_VR]; Umeå universitetKavitetsförstärkt frekvenskamspektroskopi - En teknik för känslig samtidig multiämnesdetektion av molekyler i gasfas. [2012-03650_VR]; Umeå universitetPrecision Fouriertransformspektroskopi med optiska frekvenskammar [2016-03593_VR]; Umeå universitet
Organisationer
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-6191-7926

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