Personal Information

  • Position : Professor
  • Department : Physics
  • Specification :
  • Work Phone : 2403866/057
  • Email : wramadan@du.edu.eg

E-Courses

Researches

  • 1 - Research Title:
  • Book of abstract
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  • 2 - Research Title:
  • Bent induced refractive index profile variation and mode field
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  • 3 - Research Title:
  • Intensity distribution of Fizeau fringes in transmission
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  • 4 - Research Title:
  • Lens–fibre interference proposed to monitor a transparent sheet’s
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  • 5 - Research Title:
  • Two-dimensional refractive index and stresses profiles
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  1. Screening-photovoltaic bright solitons in lithium niobate and associated single-mode waveguides
  2. On the determination of the refractive index of a fibre. II. Graded index fibre
  3. -dimensional soliton formation in photorefractive crystals
  4. Refractive index and thickness determination of thin-films using Lloyd’s interferometer
  5. Writing single-mode waveguides in lithium niobate by ultra-low intensity solitons
  6. Complete characterization of (2+ 1) D soliton formation in photorefractive crystals with strong optical activity
  7. Bent induced refractive index profile variation and mode field distribution of step-index multimode optical fiber
  8. Core-index determination of a thick fibre using lens-fibre interference (LFI) technique
  9. Stationary self-confined beams at 633 nm in Bi12SiO20 crystals
  10. On the determination of the refractive index of a fibre: I. Skin-core fibre
  11. Determination of GR-IN optical fibre parameters from transverse interferograms considering the refraction of the incident ray by the fibre
  12. On the microinterferometric determination of refractive indices and birefringence of fibres
  13. Two-dimensional refractive index and birefringence profiles of a graded index bent optical fibre
  14. Variable incidence angle method combined with Pluta polarizing interference microscope for refractive index and thickness measurement of single-medium fibres
  15. Multiple structural transitions in Langmuir monolayers of charged soft-shell nanoparticles
  16. Measurement of the refractive-index profile of planar waveguides by the use of a double Lloyd's interferometer
  17. On-line lens-fibre interference method for testing a thick fibre
  18. Direct measurement of birefringence in ion-exchanged planar waveguides
  19. A contribution to the study of color of fabrics
  20. Enhanced short temporal coherence length measurement using Newton's rings interference
  21. Refractive index retrieving of polarization maintaining optical fibers
  22. Nonray‐tracing determination of the 3D refractive index profile of polymeric fibres using single‐frame computed tomography and digital holographic interferometric technique
  23. Intensity distribution of Fizeau fringes in transmission with the real path of the interfered multiple-beams
  24. Optical fibers profiling using interferometric and digital holographic methods
  25. Simulated Fizeau ring fringes in transmission through spherical and plane reflected surfaces
  26. Lens–fibre interference in measuring liquids' refractive indices
  27. Employment of Fizeau fringe disintegration to magnify small phase variations
  28. Two-dimensional refractive index and stresses profiles of a homogenous bent optical fiber
  29. 2+ 1) D vortex soliton-like propagation in photorefractive Bi12SiO20 crystals,”
  30. The color of absorbing scattering fibers having skin‐core structure
  31. Investigation of a UV-laser generated planar polymeric waveguide directly and after five years of preparation using an interferometric method
  32. Optical anisotropy in dyed polyester fibers
  33. Variable wavelength Newton’s rings formed in transmission for measuring radius of curvature and sub-micrometric thin film thickness
  34. Disintegration of�multiple-beam Fizeau fringes in�transmission using FFT analysis
  35. A double image Mach–Zehnder interferometer
  36. Optical phase retrieving employing differentiation of a couple of two-beam π/2 phase-shifted projected interference patterns
  37. Lens–fibre interference proposed to monitor a transparent sheet’s thickness variations
  38. Intensity and polarization dynamics of spatial solitons in photorefractive crystals with large optical activity
  39. Birefringence determination in ion-exchanged waveguides
  40. Noise resistance: a key factor in the metrological applications of highly entangled multiqubit states
  41. Optical phase retrieving of a projected object by employing a differentiation of a single pattern of two-beam interference
  42. Circular arc pendulum: experiment and motion’s analysis
  43. Retrieving curvature's equation of a radially symmetric concave surface using Fizeau ring fringes