Antiresonant hollow core fiber-assisted photothermal spectroscopy of nitric oxide at 5.26 μm with parts-per-billion sensitivity

Krzempek, Karol; Jaworski, Piotr; Kozioł, Paweł; Belardi, Walter

doi:10.1016/j.snb.2021.130374

Cited by 38 publications

(29 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the ability to guide light in dissimilar wavelength regions allows ARHCFs to transmit simultaneously both the pump and probe light in the gas-filled core, providing the perfect overlap between them. So far, several configurations of the PTS sensors utilizing ARHCFs as absorption cells have been developed based on the Mach-Zehnder (MZI) and Fabry-Perot (FPI) interferometer setups and shown to provide an exceptional detection capability [22,26,[50][51][52][53][54].…”

Section: Photothermal and Photoacoustic Spectroscopymentioning

confidence: 99%

“…It can be seen that due to the photothermal effect inside the cavity, the modulation of the RI has a direct impact on the change in the intensity of the transmitted radiation, which combined with the PTS effect can be used to determine the molecular concertation of the measured sample. Furthermore, in comparison to the homodyne MZI PTS detection scheme, the FPI PTS sensor can achieve long-term repeatability via a noncomplex stabilization of the probe laser wavelength to the quadrature of the FPI using a proportional-derivative-integral (PID) based approach [52]. Several configurations of the FPI PTS sensors utilizing the ARHCFs have already been demonstrated and will be discussed in this subsection.…”

Section: Fpi Pts In Arhcfmentioning

confidence: 99%

“…The system allowed obtaining an MDL of 2.6 ppbv for 410 s integration time, which gives an NEA of 2.0 × 10 −6 cm −1 . Krzempek et al presented in [52] an FPI PTS sensor configuration aided with a borosilicate ARHCF (shown in Figure 1f), which pushed for the first time the operational wavelength of such sensors beyond the 5 µm range. The experimental setup of the sensor is shown in Figure 10a.…”

Section: Fpi Pts In Arhcfmentioning

confidence: 99%

“…(c) Registered 2f signal spectrum from 300 ppmv NO in the ARHCF (black trace) and simulated (red trace). Reprinted from[52] with permission from Elsevier.…”

mentioning

confidence: 99%

See 3 more Smart Citations

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Jaworski

2021

Sensors

Self Cite

View full text Add to dashboard Cite

Antiresonant Hollow-Core Fibers (ARHCFs), thanks to the excellent capability of guiding light in an air core with low loss over a very broad spectral range, have attracted significant attention of researchers worldwide who especially focus their work on laser-based spectroscopy of gaseous substances. It was shown that the ARHCFs can be used as low-volume, non-complex, and versatile gas absorption cells forming the sensing path length in the sensor, thus serving as a promising alternative to commonly used bulk optics-based configurations. The ARHCF-aided sensors proved to deliver high sensitivity and long-term stability, which justifies their suitability for this particular application. In this review, the recent progress in laser-based gas sensors aided with ARHCFs combined with various laser-based spectroscopy techniques is discussed and summarized.

show abstract

Section: Photothermal and Photoacoustic Spectroscopymentioning

confidence: 99%

Section: Fpi Pts In Arhcfmentioning

confidence: 99%

Section: Fpi Pts In Arhcfmentioning

confidence: 99%

“…(c) Registered 2f signal spectrum from 300 ppmv NO in the ARHCF (black trace) and simulated (red trace). Reprinted from[52] with permission from Elsevier.…”

mentioning

confidence: 99%

See 2 more Smart Citations

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Jaworski

2021

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…Numerous PTS gas sensor configurations have been presented up to date. These included bulk optics-based interferometric sensors [9][10][11][12], intracavity sensors [13,14] and more sophisticated fiber-based gas detectors with superb sensitivity [8,[15][16][17][18][19]. Configurations based on the use of hollow-core fibers (HCF) in most cases provide excellent sensitivity (even down to a minimum absorption coefficient of 10 -11 ) but at a cost of using complex optical layouts, sophisticated stabilization feed-back loops, require using specially coated optics to ensure high Finesse of the cavity, or are limited to working in the near-IR wavelength range.…”

Section: Introductionmentioning

confidence: 99%

Photothermal Gas Detection Using a Mode-Locked Laser Signal Readout

Krzempek

Jaworski

Bojęś

et al. 2022

J. Lightwave Technol.

Self Cite

View full text Add to dashboard Cite

In this work, a novel configuration of a photothermal gas sensor is demonstrated. The measured gas sample is delivered to a gas cell placed inside the linear cavity of a 1.55 µm modelocked fiber laser. The gas refractive index modulation resulting from the excitation by an auxiliary continuous wave laser is efficiently probed by analyzing the phase shift of the selfheterodyne beatnote signal of the mode-locked laser. IQ demodulation combined with Wavelength Modulation Spectroscopy-based signal analysis was employed to optimize and simplify the spectroscopic data acquisition and analysis. A proofof-concept experiment with detection of carbon dioxide at 2 µm wavelength yielded a noise equivalent absorption of 2.25•10 -7 for 1000 s integration time. The proposed sensor configuration is versatile and can be used to probe any gas molecule, provided an appropriate excitation source is used to induce the photothermal effect.

show abstract

Low‐Coherence Photothermal Interferometry for Precision Spectroscopic Gas Sensing

Hong

Chen

Jin

et al. 2023

Laser & Photonics Reviews

View full text Add to dashboard Cite

Laser spectroscopy has shown great potential as a cost‐effective method for trace gas detection with high sensitivity and specificity. However, it still falls short in applications such as the measurement of stable isotope ratios, which require high precision and stability. Here, ultrasensitive gas detection with remarkable precision and stability as well as better immunity to isobaric interference is demonstrated by use of low‐coherence photothermal interferometry. With a 10 cm long hollow‐core fiber, acetylene detection is achieved with a noise‐equivalent concentration of 0.7 part‐per‐billion and measurement precision of 0.025%. The instability of the detection over a period of 3 h is ±0.038%, 10 times better than the state‐of‐the‐art photothermal spectroscopy. The measurement of the 13C/12C isotope ratio of acetylene is demonstrated with measurement precision of ≈0.01%. This study highlights the potential of low‐coherence photothermal interferometry as an alternative to mass spectrometers, offering reliable gas detection in a compact form.

show abstract

Antiresonant hollow core fiber-assisted photothermal spectroscopy of nitric oxide at 5.26 μm with parts-per-billion sensitivity

Cited by 38 publications

References 34 publications

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases

Photothermal Gas Detection Using a Mode-Locked Laser Signal Readout

Low‐Coherence Photothermal Interferometry for Precision Spectroscopic Gas Sensing

Contact Info

Product

Resources

About