Nature

Voltage-controlled two-dimensional Fresnel diffraction pattern in quantum dot molecules

This study explores the influence of inter-dot tunneling effects within a quantum dot molecule on the Fresnel diffraction phenomenon. Our findings indicate that the Fresnel diffraction of the output ...
Nature

Dual paths cryptosystem based on tilt Fresnel diffraction using non-spherical mirror and phase modulation in expanded fractional Fourier transform domain

With the rapidly development of multimedia application, the issue of security in transmission and storage of the confidential image has becoming more and more importance. Optical technologies have ...
Phys.org

Observing matter-wave diffraction from a periodic array of half planes

Researchers at Ulsan National Institute of Science and Technology (UNIST), in Korea, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, in Germany, have recently conducted a study investigating ...
Simon Fraser University

6C20.10 Poisson's Bright Spot

A laser beam is shone onto a ball bearing and a bright spot appears at the centre of the object’s shadow due to Fresnel diffraction. Place the laser on top of the lab jacks, making sure the laser is ...
Simon Fraser University

6C20.35 Square Aperture Diffraction

A laser beam is shone onto a variable rectangular aperture. The size of the hole determines the type of diffraction produces on the screen. Very small apertures produce Fraunhofer diffraction, and ...