11 citations · 18 across the 4 of their papers we have counts for
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Zero Focal Shift in High Numerical Aperture Focusing of a Gaussian Laser Beam through Multiple Dielectric Interfaces
Ali Mahmoudi
In this paper, focal shift of a Guassian laser beam tightly focused through several planar dielectric interfaces is discussed. It is shown that the focal shift and focus point can…
The effect of Immersion medium in optical tweezers
Ali Mahmoudi, Seyyed Nader Seyyed Reihani
In this paper, we report on theoretical investigation of the effect of refractive index of immersion oil on the position of optimal depth and optical trap quality in optical tweeze…
Analysis, Design and Fabrication of centimeter-wave Dielectric Fresnel Zone Plate Lens and reflector
Ali Mahmoudi, Reza Azalzadeh
Fresnel lens has a long history in optics. This concept at non-optical wavelengths is also applicable. In this paper we report design and fabrication of a half and quarter wave die…
Negative refraction of a three-dimensional metallic photonic crystal
Ali Mahmoudi, Abbas Semnani, Ramazan Alizadeh +1
A metamaterial with a negative effective index of refraction is made from a three-dimensional hexagonal lattice photonic crystal with a metallic basis embedded in foam. It has been…