Vacuum ultraviolet light transmission through hollow‐core quartz‐glass cladding optical fibers

1984 ◽  
Vol 45 (7) ◽  
pp. 725-727 ◽  
Author(s):  
M. Watanabe ◽  
T. Hidaka ◽  
H. Tanino ◽  
K. Hoh ◽  
Y. Mitsuhashi
Keyword(s):  
Ultraviolet Light ◽  
Optical Fibers ◽  
Quartz Glass ◽  
Vacuum Ultraviolet ◽  
Light Transmission ◽  
Hollow Core

scholarly journals Vacuum Ultraviolet Absorption Spectroscopy Analysis of Breath Acetone Using a Hollow Optical Fiber Gas Cell

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 478
Author(s):  
Yudai Kudo ◽  
Saiko Kino ◽  
Yuji Matsuura
Keyword(s):  
Body Fat ◽  
Vacuum Ultraviolet ◽  
Exhaled Breath ◽  
Hollow Core ◽  
Gas Cell ◽  
Human Breath ◽  
Healthy Human ◽  
Acetone Concentration ◽  
Core Fiber ◽  
Breath Acetone

Human breath is a biomarker of body fat metabolism and can be used to diagnose various diseases, such as diabetes. As such, in this paper, a vacuum ultraviolet (VUV) spectroscopy system is proposed to measure the acetone in exhaled human breath. A strong absorption acetone peak at 195 nm is detected using a simple system consisting of a deuterium lamp source, a hollow-core fiber gas cell, and a fiber-coupled compact spectrometer corresponding to the VUV region. The hollow-core fiber functions both as a long-path and an extremely small-volume gas cell; it enables us to sensitively measure the trace components of exhaled breath. For breath analysis, we apply multiple regression analysis using the absorption spectra of oxygen, water, and acetone standard gas as explanatory variables to quantitate the concentration of acetone in breath. Based on human breath, we apply the standard addition method to obtain the measurement accuracy. The results suggest that the standard deviation is 0.074 ppm for healthy human breath with an acetone concentration of around 0.8 ppm and a precision of 0.026 ppm. We also monitor body fat burn based on breath acetone and confirm that breath acetone increases after exercise because it is a volatile byproduct of lipolysis.

Simultaneous removal of NO and SO2 using vacuum ultraviolet light (VUV)/heat/peroxymonosulfate (PMS)

Chemosphere ◽  
2018 ◽  
Vol 190 ◽  
pp. 431-441 ◽  
Author(s):  
Yangxian Liu ◽  
Yan Wang ◽  
Qian Wang ◽  
Jianfeng Pan ◽  
Jun Zhang
Keyword(s):  
Ultraviolet Light ◽  
Vacuum Ultraviolet ◽  
Simultaneous Removal

Surface modification of polymeric thin films with vacuum ultraviolet light

2008 ◽  
Vol 40 (3-4) ◽  
pp. 400-403 ◽  
Author(s):  
E. Sarantopoulou ◽  
J. Kovač ◽  
Z. Kollia ◽  
I. Raptis ◽  
S. Kobe ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Modification ◽  
Ultraviolet Light ◽  
Vacuum Ultraviolet ◽  
Polymeric Thin Films

Laser Guidance and Trapping of Mesoscale Particles in Hollow-Core Optical Fibers

1999 ◽  
Vol 82 (7) ◽  
pp. 1574-1577 ◽  
Author(s):  
Michael J. Renn ◽  
Robert Pastel ◽  
Heather J. Lewandowski
Keyword(s):  
Optical Fibers ◽  
Hollow Core ◽  
Laser Guidance

Ultrasmooth, Biocompatible, and Removable Nanocoating for Hollow-Core Microstructured Optical Fibers

2021 ◽  
Author(s):  
Timur Ermatov ◽  
Marina Novoselova ◽  
Julia Skibina ◽  
Andrey Machnev ◽  
Dmitry Gorin ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Hollow Core ◽  
Microstructured Optical Fibers

scholarly journals Hollow-Core Optical Fibers

Fibers ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 50 ◽  
Author(s):  
Walter Belardi
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Hollow Core ◽  
Fiber Technology ◽  
Scientists And Engineers

The possibility of guiding light in air has fascinated optical scientists and engineers since the dawn of optical fiber technology [...]

Sign in / Sign up

Export Citation Format

Share Document