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Adrian Hjältén
Contact
E-mail
adrian.hjalten@umu.se
Phone
+46 90 786 66 79
Works as
Affiliation
Postdoctoral fellow
at
Department of Physics
Section: Comb spectroscopy lab
Location
Fysikhuset, plan 4, Linnaeus väg 24, 4-0518
Umeå universitet, 901 87 Umeå
Publications
Publications
Research
Research
2025
Precision frequency comb spectroscopy of the
14
N
2
O,
14
N
15
NO,
15
N
14
NO, and
15
N
2
O isotopocules in the 3300 – 3550 cm
–1
range
Journal of Quantitative Spectroscopy and Radiative Transfer
, Elsevier 2025, Vol. 340
Hjältén, Adrian; Sadiek, Ibrahim; Foltynowicz, Aleksandra
2025
Cavity-enhanced comb-based double-resonance spectroscopy of high rotational energy levels in the 9070-9370 cm-1 range of methane
2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025
Hjältén, Adrian; Silva de Oliveira, Vinicius; Silander, Isak; et al.
2025
Assignment of collision-induced four-level double-resonance transitions in the 3ν3 ← ν3 spectral region of methane
Journal of Chemical Physics
, American Institute of Physics (AIP) 2025, Vol. 163, (14)
Lehmann, Kevin K.; Hjältén, Adrian; Silander, Isak; et al.
2025
Cavity-enhanced optical-optical double-resonance polarization spectroscopy using a frequency comb probe
2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025
Rosina, Andrea; Silander, Isak; Silva de Oliveira, Vinicius; et al.
2025
HNO dimerization as a chemical reference standard for N2O isotopomer ratio: Ab initio calculations, formation kinetics, and frequency comb spectroscopy
Journal of the American Chemical Society
, American Chemical Society (ACS) 2025, Vol. 147, (42) : 38110-38127
Sadiek, Ibrahim; Hjältén, Adrian; Friedrichs, Gernot; et al.
2025
Combined frequency comb and continuous wave cavity-enhanced optical-optical double-resonance spectrometer in the 1.7 µm range
Optics Express
, Optica Publishing Group 2025, Vol. 33, (18) : 38776-38802
Silva de Oliveira, Vinicius; Hjältén, Adrian; Silander, Isak; et al.
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
, Elsevier 2024, Vol. 312
Germann, Matthias; Hjältén, Adrian; Tennyson, Jonathan; et al.
2024
Measurement and assignment of J = 5 to 9 rotational energy levels in the 9070-9370 cm-1 range of methane using optical frequency comb double-resonance spectroscopy
Journal of Chemical Physics
, American Institute of Physics (AIP) 2024, Vol. 161, (12)
Hjältén, Adrian; Silva de Oliveira, Vinicius; Silander, Isak; et al.
2024
Procedure for automated low uncertainty assessment of empty cavity mode frequencies in Fabry-Pérot cavity based refractometry
Optics Express
, Vol. 32, (3) : 3959-3973
Zakrisson, Johan; Silander, Isak; Silva de Oliveira, Vinicius; et al.
2023
High accuracy line lists of CH
4
and H
2
CO in the 8 µm range from optical frequency comb fourier transform spectroscopy
2023 conference on lasers and electro-optics Europe & European quantum electronics conference (CLEO/Europe-EQEC)
Germann, Matthias; Hjältén, Adrian; Boudon, Vincent; et al.
2023
Precision frequency comb spectroscopy in the 8 µm range
CLEO 2023: proceedings
Germann, Matthias; Hjältén, Adrian; Gordon, Iouli E.; et al.
2023
Precision molecular spectroscopy in the near- and mid-infrared using frequency comb-based Fourier transform spectrometers
Umeå: Umeå University 2023
Hjältén, Adrian
2023
Line positions and intensities of the
ν
1
band of
12
CH
3
I using mid-infrared optical frequency comb Fourier transform spectroscopy
Journal of Quantitative Spectroscopy and Radiative Transfer
, Elsevier 2023, Vol. 306
Hjältén, Adrian; Foltynowicz, Aleksandra; Sadiek, Ibrahim
2023
Accurate measurement and assignment of high rotational energy levels of the 3v3 ← v3 band of methane
2023 conference on lasers and electro-optics, CLEO 2023
Hjältén, Adrian; Silva de Oliveira, Vinicius; Silander, Isak; et al.
2023
Accurate measurement and assignment of high rotational energy levels of the 3ν3 ← ν3 band of methane
CLEO 2023
Hjältén, Adrian; Silva de Oliveira, Vinicius; Silander, Isak; et al.
2023
Line positions and intensities of
12
CH
3
I around 2971 cm
-1
from frequency comb fourier transform spectroscopy
CLEO 2023: Proceedings
Sadiek, Ibrahim; Hjältén, Adrian; Foltynowicz, Aleksandra
2023
Optical frequency comb-based measurements and the revisited assignment of high-resolution spectra of CH
2
Br
2
in the 2960 to 3120 cm
−1
region
Physical Chemistry, Chemical Physics - PCCP
, Royal Society of Chemistry 2023, Vol. 25
Sadiek, Ibrahim; Hjältén, Adrian; Roberts, Frances C.; et al.
2022
An Accurate Methane Line List in the 7.2-8.0 µm Range from Comb-Based Fourier Transform Spectroscopy
CLEO: 2022: Conference on Lasers and Electro-Optics
Germann, Matthias; Hjältén, Adrian; Boudon, Vincent; et al.
2022
An Accurate Methane Line List in the 7.2-8.0 μm Range from Comb-Based Fourier Transform Spectroscopy
2022 Conference on Lasers and Electro-Optics, CLEO 2022 - Proceedings
Germann, Matthias; Hjältén, Adrian; Boudon, Vincent; et al.
2022
A methane line list with sub-MHz accuracy in the 1250 to 1380 cm
−1
range from optical frequency comb Fourier transform spectroscopy
Journal of Quantitative Spectroscopy and Radiative Transfer
, Vol. 288
Germann, Matthias; Hjältén, Adrian; Boudon, Vincent; et al.
2022
Compact fiber-based mid-infrared frequency comb sources
Optica High-brightness Sources and Light-driven Interactions Congress 2022
Krzempek, Karol; Tomaszewska-Rolla, Dorota; Gluszek, Aleksander; et al.
2021
Frequency comb fourier transform spectroscopy at 8 µm using a compact difference frequency generation source
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Germann, Matthias; Hjältén, Adrian; Krzempek, Karol; et al.
2021
Frequency Comb Fourier Transform Spectroscopy at 8m Using a Compact Difference Frequency Generation Source
2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Germann, Matthias; Hjältén, Adrian; Krzempek, Karol; et al.
2021
Precision measurements of 14N216O using a comb-based fourier transform spectrometer at 7.8 µm
CLEO: Science and Innovations: Conference Proceedings
Hjältén, Adrian; Germann, Matthias; Krzempek, Karol; et al.
2021
Optical frequency comb Fourier transform spectroscopy of
14
N
2
16
O at 7.8 µm
Journal of Quantitative Spectroscopy and Radiative Transfer
, Elsevier 2021, Vol. 271
Hjältén, Adrian; Germann, Matthias; Krzempek, Karol; et al.
2021
Fourier transform spectroscopy using difference frequency generation comb sources at 3.3 µm and 7.8 µm
Proceedings OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
Hjältén, Adrian; Germann, Matthias; Sadiek, Ibrahim; et al.
2021
High-Resolution Measurements of Halogenated Volatile Organic Compounds Using Frequency Comb Fourier Transform Spectroscopy
2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Hjältén, Adrian; Sadiek, Ibrahim; Lu, Chuang; et al.
2020
Towards a Transferable Standard for Nitrous Oxide Isotopomer Ratio
2020 Conference on Lasers and Electro-Optics (CLEO)
Sadiek, Ibrahim; Hjältén, Adrian; Stuhr, Michael; et al.
2020
Towards a transferable standard for nitrous oxide isotopomer ratio
Conference on Lasers and Electro-Optics
Sadiek, Ibrahim; Hjältén, Adrian; Stuhr, Michael; et al.
2020
Mid-infrared comb-based fourier transform spectroscopy of halogenated volatile organic compounds
2020 Conference on Lasers and Electro-Optics (CLEO)
Sadiek, Ibrahim; Hjältén, Adrian; Stuhr, Michael; et al.
2020
Line positions and intensities of the
ν
4
band of methyl iodide using mid-infrared optical frequency comb Fourier transform spectroscopy
Journal of Quantitative Spectroscopy and Radiative Transfer
, Elsevier 2020, Vol. 255
Sadiek, Ibrahim; Hjältén, Adrian; Vieira, Francisco Senna; et al.
2018
Modeling the cavity dispersion in cavity-enhanced optical frequency comb Fourier transform spectroscopy
Hjältén, Adrian
Accurate measurement and assignment of high rotational energy levels in the 9150 - 9370 cm
−1
range of methane using optical frequency comb double-resonance spectroscopy
Hjältén, Adrian; Silva de Oliveira, Vinicius; Rosina, Andrea; et al.
View publications in DiVA
Research groups
Group member
Optical frequency comb spectroscopy group
Research projects
1 January 2021 until 31 December 2026
Double-Resonance Spectroscopy of Small Molecules Using an Optical Frequency Comb
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