54 research outputs found
Axial irradiance and entropy of holographic optical elements under illumination with quasi-monochromatic light
Approximate period for large-amplitude oscillations of a simple pendulum based on quintication of the restoring force
Higher Accuracy Approximate Solution for Oscillations of a Mass Attached to a Stretched Elastic Wire by Rational Harmonic Balance Method
A two step method for recording holographic optical elements with partially coherent light
We propose a two step method which enables us to obtain transmission Holographic Optical Elements of high diffraction efficiency as well as a good signal-to-noise relation. By means of a device using partially coherent light, a master Holographic Optical Element can be copied in a second photosensitive material. The results which are obtained in dichromated gelatin and photoresist are comparable to those which are obtained directly
Application of He's Homotopy Perturbation Method to the Relativistic (An)harmonic Oscillator. II: A More Accurate Approximate Solution
Residue Harmonie Balance for Discontinuous Nonlinear Oscillator with Fractional Power Restoring Force
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