A Novel Compact Photomic Crystal Fibre Surface Plasmon by Massaro, A.; Akowuah, E.K.; Gorman, T.; Ademgil, H.; Haxha,

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By Massaro, A.; Akowuah, E.K.; Gorman, T.; Ademgil, H.; Haxha, S.; Robinson, G.K.; Oliver, J.V

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Extra info for A Novel Compact Photomic Crystal Fibre Surface Plasmon Resonance Biosensor for an Aqueous Environment

Example text

The transfer matrix method (TMM) provides an analytical means for calculation of wave propagation in multilayer media. This method permits exact and efficient evaluation of electromagnetic fields in layered media through multiplication of 2 × 2 matrices. The TMM is usually used as an efficient tool to analyse uniform and non-uniform gratings, distributed feedback lasers and even onedimensional photonic crystals. The solution of the coupled mode (coupled modes TE and TM) equations is represented by a 2 x 2 transfer matrix which relates the forward and backward propagating field amplitudes.

Therefore, by using the TMM method the electric and magnetic components of the input and output signal through the whole of structure can be obtained. Hence, optical properties such as transmission, phase characteristics and dispersion and its higher order such as group velocity and third order dispersion of the structure can be derived. 2 shows the transmission spectrum of the structure in the case which I input  0 . 1 is used for determination of refractive index of the nonlinear defect layer.

With the proper selection of hole depths, diameters, and arrangement, this index confinement can be exploited to create single mode photonic crystal defect VCSELs that have the potential for low threshold currents and high output powers. The specific parameters of hexagonal lattice were optimized to achieve high Q factor of the microcavity. 2. 8As quantum well layers with 10nm thick GaAs barrier layer. 02As layer is incorporated between the P-type DBR and the active region to form lateral oxidation and provide both current and optical confinements.

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