Integrated Ammonia Sensor Using a Telecom Photonic Integrated Circuit and a Hollow Core Fiber

Hänsel, Andreas; Adamu, Abubakar I.; Markos, Christos; Feilberg, Anders; Bang, Ole; Heck, Martijn J. R.

doi:10.3390/photonics7040093

Cited by 3 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This concept can be implemented in PIC platforms 51 as well as in fiber-based platforms. 52 To mitigate multimode guidance in the HC waveguide, which leads to intermodal interference, methods like antiresonant HC fiber, 53 chirped-laser dispersion spectroscopy, 54 and photothermal spectroscopy 35,55 can be used. Microcavity Ring Resonator.…”

Section: Configurations Face?mentioning

confidence: 99%

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

2022

View full text Add to dashboard Cite

In this perspective, we report an opinion on overtone spectroscopy for sensing and discuss the nature of the opportunities perceived for specialists. New spectroscopic strategies can potentially be extended to detect other common toxic byproducts in a chip-scale label-free manner and to enhance the functionality of chemical and biological monitoring. Nevertheless, the full potential of overtone spectroscopy is not yet exhausted, challenges must be overcome, and new avenues await. Within this Perspective, we look at where the field currently stands, highlight several successful examples of overtone spectroscopy based sensors and detectors, and ask what it will take to advance current state-of-the-art technology. It is our intention to point out some potential blind spots and to inspire further developments.

show abstract

Section: Configurations Face?mentioning

confidence: 99%

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

2022

View full text Add to dashboard Cite

show abstract

“…To implement optical methods for quality control of plant products, a single-mode fiber sensor for the distribution of sucrose was developed, covering graphene oxide on the surface of a fiber without a core (18), as well as a fully integrated optical ammonia sensor based on a photonic integrated circuit with a tunable laser source and a hollow fiber as a cell interaction with gas (19).…”

Section: Introductionmentioning

confidence: 99%

Spectral Photoluminescent Parameters of Barley Seeds (Hordéum vulgáre) Infected with Fusarium ssp

Moskovsky

Yuri

Лавров

et al. 2022

Photochem & Photobiology

View full text Add to dashboard Cite

We needed effective and sustainable technologies for better microbiological control of crops, including Fusarium. However, photoluminescent UV-Vis methods are potential for diagnosing plant diseases with Fusarium. It has not been sufficiently studied despite the application of these methods for other biological researches. The excitation spectrum of the seeds during infection shifts to the shorter wavelength and a new maximum appears in the region λ ≈ 232 nm. The photoluminescence of infected seeds increases with excitation by radiation of wavelengths λ e,1 = 232 nm, λ e,2 = 362 nm and λ e,3 = 424 nm by 1.33-3.14 times, and λ e,3 = 424 nm-decreases by 1.1 times. Statistical moments μ 3 and μ 4 , asymmetry and kurtosis change only with short-wave excitation. When analyzing the decomposition of the frequency spectrum into Gaussian curves, the most informative ratio is the ratio of right-handed and left-handed Gaussians under excitation λ e,2 = 362 nm and λ e,3 = 424 nm. The ratios of their maxima change during infection by 1.36-3.2 times, and for excitation by radiation λ e,2 , the frequency boundaries of Gaussians change. The results of measurements and calculations provide a basis for the development of a method and device for photoluminescence diagnostics of fusarium seeds in UV-Vis ranges.

show abstract

Integrated Photonic Sensors for the Detection of Toxic Gasses—A Review

Butt,

Piramidowicz

2024

Chemosensors

View full text Add to dashboard Cite

Gas sensing is crucial for detecting hazardous gasses in industrial environments, ensuring safety and preventing accidents. Additionally, it plays a vital role in environmental monitoring and control, helping to mitigate pollution and protect public health. Integrated photonic gas sensors are important due to their high sensitivity, rapid response time, and compact size, enabling precise recognition of gas concentrations in real-time. These sensors leverage photonic technologies, such as waveguides and resonators, to enhance performance over traditional gas sensors. Advancements in materials and fabrication techniques could further improve their efficiency, making them invaluable for environmental monitoring, industrial safety, and healthcare diagnostics. In this review, we delved into photonic gas sensors that operate based on the principles of evanescent field absorption (EFA) and wavelength interrogation methods. These advanced sensing mechanisms allow for highly sensitive and selective gas detection, leveraging the interplay of light with gas molecules to produce precise measurements.

show abstract

Integrated Ammonia Sensor Using a Telecom Photonic Integrated Circuit and a Hollow Core Fiber

Cited by 3 publications

References 20 publications

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

Spectral Photoluminescent Parameters of Barley Seeds (Hordéum vulgáre) Infected with Fusarium ssp

Integrated Photonic Sensors for the Detection of Toxic Gasses—A Review

Contact Info

Product

Resources

About