tag:blogger.com,1999:blog-26149635370663731262011-10-14T07:00:43.976-07:00Everything about photonicsRyanhttp://www.blogger.com/profile/03666446898211865899noreply@blogger.comBlogger181100tag:blogger.com,1999:blog-2614963537066373126.post-63726767653556298982010-07-08T04:25:00.001-07:002010-07-08T04:25:57.259-07:00

The key components of modern telescopes are the metal mirrors which need to be positioned with extreme precision. "All the mirrors must be produced and characterized with extreme precision, that is to an accuracy of less than one micrometer.  They also have to be exactly positioned in relation to each other," explains Sebastian Scheiding from the Fraunhofer Institute for Applied Optics and

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Princeton Instruments is pleased to announce the publication of a brochure showcasing their field-proven, confocal Raman systems. This 8-page brochure includes information about Princeton’s flexible, TriVista and MonoVista CRS configurations designed for high-performance Raman spectroscopy research. This graphically oriented brochure has both photo and CAD configuration option layouts of

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PNNL technology refines laser sensors, licensed to Wavelength Electronics RICHLAND, Washington – Analyzing trace atmospheric gases can now be considerably more precise with the help of a device that delivers stable and reliable power to the lasers used in gas sensors. The low-noise current controller was developed at the Department of Energy's Pacific Northwest National Laboratory. The

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Optical amplification is the answer for making light travel over sizable distances when it is bound in a plasmonic mode. Even if research on plasmonics, a relatively new branch of optics, it is a very attractive domain for the scientists since surface plasmons allow confining optical energy to volumes that are significantly smaller than those accessible with conventional dielectric

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Ultra-fast processes such as electrons shuffling in superconductors could be investigated using a tool which is basically the combination between an ultra-fast laser pulses from the Linac Coherent Light Source with a monochromator, which selects wavelengths from a large range of energy. The result is a tunable X-Ray laser that can be used for studying materials. Unlike hard X-Rays which,

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Although long past the age of adolescence, you find that your acne appeared. What to do? You must go to the doctor, use special creams (which are not always effective, and if so, then the results are seen after a long time using them) and have a proper diet. Another question that torments you is: if the scarring will remain? But, first of all you must know what their causes are. These can be: a

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During storms or when the national network of electrical energy falls, we have an alternative, namely the energy back-up system (or UPS system). The UPS (uninterruptible power supply) is an electrical apparatus which provides emergency power to a consumer(when the main input power source fails). The process of choice of such systems is done in several stages. In the first we have to determine

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After about one century since the first electrical traffic lights were invented (the first 4-way three color traffic light, by William L. Potts in 1920, and the first electric automatic traffic light, by Garrett Morgan in the same year), they can be seen now in a variety of forms, all over the world. The traffic lights are also called traffic lamps, traffic signals, stoplights, stop-and-go

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A laser rangefinder is a device which uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender. A rangefinder is a device used to measure distance to an

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When it comes to laser cutting first of all comes the question: what is it? Described simply, is the process of cutting a piece through a complete penetration of the material by the focused laser beam. Regarding the advantages of this technology, laser cutting offers several benefits materials. It is proven that laser cutting is flexible in the material and can process without catching the

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X rays are electromagnetic parts of the nature and they are distinguished by the wavelength of light smaller. They are penetrating electromagnetic radiation with wavelengths shorter than the one of the light. Their appear from the place where the cathode rays are falling on the glass of a vacuum tub and are recognized through the special look of the light which passes through bodies and reflects

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The telescope is an optical instrument which allows to observe distant and confusing objects as it would be more bright and close to the observer. The telescopes are used in astronomy to observe the distant celestial elements. For hundreds of years, they were the only tools used to observe the planets and the galaxies. Most telescopes work by collecting reflected light emitted from stars or by

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The laser disc (LD) is a home video disc format, and was the first commercial optical disc storage medium. Initially marketed as Discovision in 1978, the technology was licensed and sold as Reflective Optical Videodisc, Laser Videodisc, Laser vision, Disco-Vision, Disco Vision, and MCA Disco Vision until Pioneer Electronics purchased the majority stake in the format and marketed it as laser disc

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When the photonics are brought in discussion one of the first elements that come into the mind are optics. To be able to completely understand what are these and where are its present next lines will bring into the light the most important details. An optical instrument is a asamblu of lenses, mirrors and apertures through which obtain images of various objects. Some of the most known products

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An optical illusion (also called a visual illusion) is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give a percept that does not tally with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects

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Lasers are quantum devices of emission and amplification of the radiation in the optical area and in microwaves one, which bases its functionality on the interaction of two physical systems: the electromagnetic field in a resonant cavity and the active field, located in the same cavity resonance, made up of atoms, ions, molecules etc. Laser performance increases in a significant way if it is

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The holography is a method of recording a three-dimensional image on two-dimensional media in general. Thus, holography is an advanced form of photographic technique, the records obtained are called holograms. The same method can be applied to recording, playback and processing other than visual ones. The difference in principle between an ordinary photograph and a hologram is that each point of

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Fiber optic is one of the most known and used photonic products. But even if it is often used in the current talking, to be able to understand all its functionalities it’s necessary to know what it is. Fiber optic internet, telephone fiber... But what is fiber? It is a very thin flexible wire made from a transparent material, for example glass, which is wrapped in a layer which helps to produce

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