Refractive index profile
Photonic Bandgaps in Quasiperiodic Multilayer Structures Using Fourier Transform of the Refractive Index Profile
... (FFT). From the calculated spectrum, one can determine the peaks of the spectrum and the PBGs of the structure, while the wavelength of one PBG is twice of the wavelength of that peak. Since each PBG is equivalent to a ...
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Dispersion and Peak Reflectivity Analysis in a Non-Uniform FBG Based Sensors Due to Arbitrary Refractive Index Profile
... of refractive index profile discussed in the beginning of Section ...of refractive index profile [14, ...complicated profile than other two cases. We conclude that complex ...
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Modeling of single mode optical fiber having a complicated refractive index profile by using modified scalar finite element method
... the refractive index at the center of the waveguide at , controls the growth or decay of the profile envelope, is the number of cycles in a core radius, is the core radius and is the cladding ...
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Research on Error Analysis and Correction Technique of Atmospheric Refraction for InSAR Measurement with Distributed Satellites
... the profile model of global tropospheric refractive ...of refractive index profile model of statistical data is established by using a great deal of historical meteorological sounding ...
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Flat Far Field Lenses and Reflectors
... The flat lens proposed here consists of multiple concentric annular rings with a radial refractive index profile as shown in Figure 1. The refractive index is realized using a ...
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Photonic Crystal Based Ring Resonator Sensor for Detection of Glucose Concentration for Biomedical Applications
... the refractive index of sample is ...the refractive index of urine samples with different concentration of glucose changes, the overall refractive index profile of the ...
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Design and Characterization Study of Endless Single Mode (ESM) Photonic Crystal Fiber Using Finite Element Method
... effective refractive index below than that of the core ...a refractive index profile that is quite similar to that of step index fiber, with the array of air holes becoming an ...
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Long period fibre grating as gas sensor for environmental pollution monitoring
... actual refractive index profile along the grating is not linear, as the program code assumes it to ...the refractive index profile of the grating section approximates a Gaussian ...
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Practical limitation on operation of nonlinear parity time Bragg gratings
... complex refractive index profile that satisfies ̂ ̂ , where denotes the spatial position of the grating and * denotes the complex ...background refractive index as shown in ...real ...
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1 Liquid-Phase Epitaxial Growth and Characterization 2 of Nd:YAl 3(BO34 Optical Waveguides 3
... substrate, which suggests a step-like refractive index profile. The film shown in Figure 3b) was obtained after epitaxial growth for 12 hours at the 129. conditions specified above. The[r] ...
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Integrated photonic refractive index sensors
... effective refractive index change is constant for any practical effective refractive index change and for a small wavelength range around a center vacuum wavelength, where the wavelength range ...
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Evolution of Surface Plasmon Supermodes in Metal-Clad Microwire and its Potential for Biosensing
... The rapid change in the loss values due to the presence of the sensing biomaterials can be used for sensing applications. The differential losses between the modes, due to the change of the ssDNA to dsDNA, are shown in ...
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Refractive Index Determinations of Glass Fragments
... In a previous paper the writer described an immersion procedure for refractive index determinations on glass fragments, in which dispersion effects were utilized as a guide to a proper e[r] ...
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Airborne Particle Sensing with Micro-optics.
... output profile of a single mode fiber could be quite narrow – on the same order of magnitude of a particle diameter, the perturbation in forward wavefront is relatively large, making light extinction/mode ...
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Optical Birefringence Studies on Cholesteric and Induced Smectic Phases of Ternary Mixture of Liquid Crystalline Materials
... observations. Refractive indices in the optical region are determined at different temperatures by employing the techniques described by the earlier investigators ...
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The ionospheric Z ray return mechanism
... Nevertheless, the principles expounded by Poeverle1n may be utilised and the Poeverlein diagram is now treated as a refractive index space where the locus of the refractive index vector [r] ...
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Can ozone be used to calibrate aerosol photoacoustic spectrometers?
... measured refractive index (for ni- grosin) or a refractive index determined from broadband ex- tinction measurements (for SRFA and PPFA) and Mie theory to calculate the known absorption for ...
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REFRACTIVE ERRORS: EPIDEMIOLOGICAL PROFILE IN CHILDREN IN MADAGASCAR
... In our context, parent doesn’t accept easily that his child must wear glasses. There are two reasons for this: there are economic reasons, or cultural reasons (wearing glasses are reserved only for adults). We must ...
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Characterising refractive index dispersion in chalcogenide glasses
... film refractive index and thickness to an accuracy of better than ...the refractive index of the thin ...consistent refractive index results from the experimental data of [21] ...
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Refractive index sensing of gases based on a one-dimensional photonic crystal nanocavity
... angular lattice pattern has been used for optofluidic sensing with a sensitivity of 636 nm RIU −1 (Bougriou et al., 2013). A 2-D photonic crystal L7 cavity has been studied for refractive sensing of water and ...
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