optical technique
1Optical coherence tomography — Intervention Optical Coherence Tomography (OCT) image of a sarcoma MeSH …
2Optical mapping — Optical mapping[1] is a technique for constructing ordered, genome wide, high resolution restriction maps from single, stained molecules of DNA, called optical maps . By mapping the location of restriction enzyme sites along the unknown DNA of an …
3Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …
4Optical heterodyne detection — is an important special case of heterodyne detection. In heterodyne detection, a signal of interest at some frequency is non linearly mixed with a reference local oscillator (LO) that is set at a close by frequency. The desired outcome is the… …
5Optical transfection — is the process of introducing nucleic acids into cells using light. Typically, a laser is focussed to a diffraction limited spot ( 1 µm diameter) using a high numerical aperture microscope objective. The plasma membrane of a cell is then… …
6Optical imaging — is an imaging technique. Optics usually describes the behavior of visible, ultraviolet, and infrared light used in imaging. Because light is an electromagnetic wave, similar phenomena occur in X rays, microwaves, radio waves. Chemical imaging or… …
7Optical sectioning — is the process by which a suitably designed microscope can produce clear images of a focal planes deep within a thick sample. This is used to reduce the need for thin sectioning using instruments such as the microtome. Many different techniques… …
8Optical interferometry — combines two or more light waves in an optical instrument in such a way that interference occurs between them. Early interferometers used white light sources and also monochromatic light from atomic sources (e.g., Young s double slit experiment… …
9Optical lens design — refers to the calculation of lens construction parameters (variables) that will meet a set of performance requirements and constraints, including cost and schedule limitations. Construction parameters include surface profile types (spherical,… …
10Optical disc recording modes — Optical discs Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Optical media types …
