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preface
about the editor
contributors
7 novel long-period fiber grating sensor based on dual-peak resonance and spr
1 introduction
2 dual peak resonance in coated lpfg
2.1 coupled theoretical analysis of coated lpfg
2.2 determination of dual resonance wavelengths
2.3 transmission characteristics of dual resonance lpfg
3 model analysis of spr-based lpfg with metal coating
3.1 establishing the complex characteristic equation
3.2 equation solution method
3.3 intensity profile of cladding mode
4 optimization of coated lpfg sensor based on dpr and spr
4.1 definition of sensor sensitivity
4.2 optimization of design of lpfg sensors
5 dispersion in metal-coated lpfg sensors
5.1 dispersion expression
5.2 material dispersion influence on resonance characteristics
5.3 jump region in response of resonance wavelength
5.4 optimization based on consideration of dispersion
6 conclusion
acknowledgments
references
8 analytical approaches to optimization of gas detection using fabry-perot interferometers
1 introduction
1.1 gas sensor design
2 the narrow-gap fpi gas sensor
2.1 sensor response and the cross-correlation spectroscopy principle
2.2 optimal fpi mirror refiectivity
2.3 multiple gas sensors based on the narrow-gap design
2.4 narrow-gap sensor design with a narrow band-pass filter
2.5 narrow-gap sensor design and mems
3 the wide-gap fpi gas sensor
3.1 the convolution method
4 internal reflection effects
5 conclusions
references
9 spectroscopic modeling of mid-infrared chemical sensors
1 introduction
2 example #1: accessing the "active" sensing regions of an atr element via ray tracing
3 example #2: sensor response simulation-toward virtual
calibrations
3.1 experimental spectra acquisition
3.2 dielectric function modeling
3.3 model establishment and validation
3.4 sensor response simulation
3.5 spectrum prediction
4 example #3: extended applications
4.1 exploration of the sources of deviations in beer's law plots
4.2 optical tolerance study i: assessing the in-coupling ratio-sharpness of the focal point
10 finite-element modeling of infrared sensors
11 design and optimization of optical gas sensor systems
12 simulation and modeling for optical design of laser remote sensing for gas measurements