Personal Information

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

E-Courses

Researches

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