fresnel zone उदाहरण वाक्य
उदाहरण वाक्य
- In the above simulations with the 4 mm diameter disc the adjacent Fresnel zone has a width of about 77 �m.
- Random edge corrugation whose amplitude is of the same order as the width of that adjacent Fresnel zone reduces the Arago spot intensity.
- Composed of a series of discs centered about an origin, Fresnel zone plates are manufactured using laser pulses, which embed voids into reflective lens.
- This is caused by diffraction effects : for the best propagation, a volume known as the first Fresnel zone should be kept free of obstructions.
- "' David Sayre "'( March 2, 1924 February 23, 2012 ) was an American scientist, credited with the early development of Fresnel zone plates.
- Until now, resolutions of 30 nanometer are possible using the Fresnel zone plate lens which forms the image using the soft x-rays emitted from a synchrotron.
- If the diameter of the circular hole in the screen is sufficient to expose two Fresnel zones, then the amplitude at the center is almost zero.
- A zone plate consists of a set of radially symmetric rings, known as Fresnel zones, which alternate between interferes at the desired focus, creating an image there.
- Despite its weak reflectance ( R = 0.25?2 ? 2 at T = 1.3 ?10-4 K ), graphene has utility as a lens for Fresnel zone plates.
- He suggested to use the newly developed electron beam lithography apparatus at IBM to produce Fresnel zone plates, a type of X-ray lens now widely used in Synchrotron facilities.