A signal enhanced portable raman probe for anesthetic gas monitoring

Schlüter, Sebastian; Asbach, S.; Popovska-Leipertz, Nadejda; Seeger, Thomas; Leipertz, Alfred

doi:10.17586/2226-1494-2015-15-2-218-226

Cited by 3 publications

(1 citation statement)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Spontaneous Raman scattering provides an interesting alternative detection method to for identification and determination of all relevant compounds in the breathing gas during consecutive breath events [15,16] In principle, it allows the simultaneous detection of any polyatomic compounds with high temporal resolution using only one sensor system. Due to the high content of information, spontaneous Raman scattering belongs to the mostly developed spectroscopic techniques.…”

Section: Introductionmentioning

confidence: 99%

Potentials of Raman based sensor system for an online analysis of human inhale and exhale

Seeger¹,

Schlüter²,

Lukyanov³

2015

Naučno-teh. vestn. inf. tehnol. meh. opt.

Self Cite

View full text Add to dashboard Cite

A gas sensor based on spontaneous Raman scattering is proposed for the compositional analysis of single breath events. A description of the sensor as well as of the calibration procedure, which also allows the quantification of condensable gases, is presented. Moreover, a comprehensive characterization of the system is carried out in order to determine the measurement uncertainty. Finally, the sensor is applied to consecutive breath events and allowed measurements with 250 ms time resolution. The Raman sensor is able to detect all the major gas components, i.e. N 2 , O 2 , CO 2 , and H 2 O at ambient pressure with a high temporal resolution. Concentration fluctuations within a single breath event could be resolved.

show abstract

Section: Introductionmentioning

confidence: 99%

Potentials of Raman based sensor system for an online analysis of human inhale and exhale

Seeger¹,

Schlüter²,

Lukyanov³

2015

Naučno-teh. vestn. inf. tehnol. meh. opt.

Self Cite

View full text Add to dashboard Cite

show abstract

Silver holographic gratings as substrates for surface-enhanced Raman scattering gas analysis

2020

View full text Add to dashboard Cite

This work is devoted to the investigation of the enhancement of Raman signals of nonadsorbed gases in the vicinity of corrugated metallic surfaces supporting propagating surface plasmon-polaritons (PSPPs). Simulation of the PSPP excitation efficiency on holographic gratings coated with silver films of various thicknesses at different groove heights was carried out. Verification showed good agreement between theory and experiment. Also, it was found that an increase of the PSPP excitation efficiency may not lead to an increase in the enhancement factor of Raman signals of gases located near the surface-enhanced Raman scattering active surface. For a holographic grating with a period of 667 nm, a groove height of 70 nm, and a silver film thickness of 30 nm coated with a protective A l 2 O 3 layer, the enhancement factor of Raman signals of nonadsorbed nitrogen molecules was ∼ 4 ⋅ 10 3 .

show abstract