optical diffraction
51Uniform theory of diffraction — In numerical analysis, uniform geometrical theory of diffraction (UTD) is a high frequency method for solving electromagnetic scattering problems from electrically small discontinuities or discontinuities in more than one dimension at the same… …
52Extraordinary optical transmission — (EOT) is an opticalphenomenon that happens in slits that are narrower than the wavelength of the light [Ebbesen, T. W.; Ghaemi, H. F.; Thio, Tineke; Grupp, D. E.; Lezec, H. J, Extraordinary Optical Transmission through Sub wavelength Hole Arrays …
53Metal-mesh optical filters — are optical filters made from stacks of metal meshes and dielectric. They are used as part of an optical path to filter the incoming light to allow frequencies of interest to pass while reflecting other frequencies of light. Metal mesh filters… …
54Air Force Maui Optical and Supercomputing observatory — Asteroids discovered: 58 8721 AMOS January 14, 1996 9651 Arii SooHoo January 7, 1996 10193 Nishimoto August 8, 1996 10863 Oye August 31, 1995 11104 Airion October 6, 1995 …
55Glory (optical phenomenon) — A glory is an optical phenomenon appearing much like an iconic Saint s halo about the head of the observer which is produced by light backscattered (a combination of diffraction, reflection and refraction) towards its source by a cloud of… …
56Acousto Optical Spectrometer — The principle of an AOS is based on the diffraction of light at ultrasonic waves. A piecoelectric transducer, driven by the RF signal (from the receiver), generates an acoustic wave in a crystal (the so called Bragg cell). This acoustic wave… …
57interference diffraction patterns — The patterns arising from the recombination of beams of light or other waves after they have been split and one set of rays have undergone a phase retardation relative to the other. Such patterns formed by simple objects give information on the… …
58Digital holographic microscopy — Contents 1 Working principle 2 Advantages 3 Applications 4 …
59Dark field microscopy — (dark ground microscopy) describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. As a result, the field around the specimen (i.e. where there is no specimen to scatter the beam) is… …
60Microlens — A microlens is a small lens, generally with a diameter less than a millimetre (mm) and often as small as 10 micrometres (µm). The small sizes of the lenses means that a simple design can give good optical quality but sometimes unwanted effects… …
