45 citations · 138 across the 16 of their papers we have counts for
17 papers
Triple-Resonance Spectroscopy Using a Cavity-Enhanced Frequency Comb Probe
Qinxue Nie, Vinicius Silva de Oliveira, Adrian Hjältén +3
Accurate experimentally verified models of molecular hot-band transitions are essential for interpreting high-temperature spectra in environments ranging from exoplanetary atmosphe…
Measurement and assignment of 10 rotational energy levels in the 9510 to 9810 cm and 6590 to 6900 cm ranges of methane using optical frequency comb double-resonance spectroscopy
Yuan Cao, Adrian Hjältén, Vinicius Silva de Oliveira +4
Accurate models of high temperature methane spectra are needed in astrophysics. Previous measurements of methane hot-band transitions in the 6 2 polyad…
Rotational energy levels in the ground vibrational state of methane with kHz-level accuracy from comb-referenced double-resonance and Lamb-dip spectroscopies
Vinicius Silva de Oliveira, Isak Silander, Hiroyuki Sasada +4
Methane is a key spherical-top molecule, yet restrictive selection rules for one-photon transitions have prevented determination of its ground state (GS) energies with state-of-the…
Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm states of ethylene
Adrian Hjältén, Vinicius Silva de Oliveira, Yuan Cao +3
We use optical-optical double-resonance (OODR) spectroscopy to measure for the first time hot-band transitions of ethylene (CH) between states in the 3000 cm and…
Measurement and assignment of E-symmetry states in the 6010-6110 cm and 8940-9150 cm ranges of methane using optical frequency comb double-resonance spectroscopy
Adrian Hjältén, Vinicius Silva de Oliveira, Michael Rey +3
We use sub-Doppler optical-optical double-resonance (OODR) spectroscopy with a 3.3 m single-frequency pump and a cavity-enhanced 1.65 m comb probe to measure 33 ladder-type (…
Combined frequency comb and continuous wave cavity-enhanced optical-optical double-resonance spectrometer in the 1.7 m range
Vinicius Silva de Oliveira, Adrian Hjältén, Isak Silander +4
We present an optical-optical double-resonance (OODR) spectrometer based on a 3.3 m continuous wave pump and two cavity-enhanced probes: a frequency comb tunable in the 1.64 - 1…
Assignment of collision-induced four-level double-resonance transitions in the 3 spectral region of methane
Kevin K. Lehmann, Isak Silander, Adrian Hjältén +2
Optical-optical double-resonance (OODR) spectroscopy using a narrow-linewidth pump and a frequency comb probe has previously been used to measure and assign sub-Doppler transitions…
Measurement and assignment of J = 5 to 9 rotational energy levels in the 9070-9370 cm range of methane using optical frequency comb double-resonance spectroscopy
Adrian Hjältén, Vinicius Silva de Oliveira, Isak Silander +6
We use optical-optical double-resonance (OODR) spectroscopy with a continuous wave (CW) pump and a cavity-enhanced frequency comb probe to measure high rotational energy levels of…
Realization of the Pascal based on Argon using a Fabry-Pérot refractometer
Isak Silander, Johan Zakrisson, Ove Axner +1
Based on a recent experimental determination of the static polarizability and a first-principles calculation of the frequency-dependent dipole polarizability of argon, this work pr…
Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe
Vinicius Silva de Oliveira, Isak Silander, Lucile Rutkowski +4
Accurate parameters of molecular hot-band transitions, i.e., those starting from vibrationally excited levels, are needed to accurately model high-temperature spectra in astrophysi…
Optical frequency comb Fourier transform spectroscopy of formaldehyde in the 1250 to 1390 cm range: experimental line list and improved MARVEL analysis
Matthias Germann, Adrian Hjältén, Jonathan Tennyson +9
We use optical frequency comb Fourier transform spectroscopy to record high-resolution, low-pressure, room-temperature spectra of formaldehyde (HCO) in the range…
Sub-Doppler Double-Resonance Spectroscopy of Methane Using a Frequency Comb Probe
Aleksandra Foltynowicz, Lucile Rutkowski, Isak Silander +7
We report the measurement of sub-Doppler double-resonance transitions in methane using a 3.3 m continuous wave optical parametric oscillator to pump transitions in the fundament…
Gas modulation refractometry (GAMOR) - On its ability to eliminate the influence of drifts
Ove Axner, Isak Silander, Clayton Forssén +2
Gas modulation refractometry (GAMOR) is a technique based on a dual-Fabry-Perot (FP) cavity (DFPC) for assessment of gas refractivity, density, and pressure that can alleviate sign…
Gas equilibration gas modulation refractometry (GEq-GAMOR) for assessment of pressure with sub-ppm precision
Isak Silander, Thomas Hausmaninger, Clayton Forssén +2
A novel realization of Gas Modulation Refractometry (GAMOR) that outperforms the original realization [Single Cavity Modulated GAMOR (SCM-GAMOR)], is presented. The reference measu…
Drift-Free Fabry-Perot-Cavity-based Optical Refractometry -- Accurate Expressions for Assessments of Gas Refractivity and Density
Ove Axner, Isak Silander, Thomas Hausmaninger +1
Recent advancements in the field of Fabry-Perot cavity based optical refractometry (OR), FPC-OR, comprising the use of proposed novel methodologies based on drift-free Dual FPC-OR…
Fast Switching Dual Fabry-Perot Cavity Optical Refractometry - Methodologies for Accurate Assessment of Gas Density
Isak Silander, Thomas Hausmaninger, Michael Bradley +2
Dual Fabry-Perot cavity based optical refractometry (DFPC-OR) has a high potential for assessments of gas density. However, drifts of the FP cavity often limit its performance. We…
Fast Switching Dual Fabry-Perot-Cavity-based Optical Refractometry for Assessment of Gas Refractivity and Density - Estimates of Its Precision, Accuracy, and Temperature Dependence
Martin Zelan, Isak Silander, Thomas Hausmaninger +1
Dual Fabry-Perot-Cavity-based Optical Refractometry (DFCB-OR) have been shown to have excellent potential for characterization of gases, in particular their refractivity and densit…