New Book: World Will See Computers In Whole New Light photonics is the optical equivalent of electronics Instead of using electrons and process information, photonics uses photons, or tiny units of light. http://www.scienceblog.com/community/older/2002/D/20024865.html
Extractions: From Purdue University WEST LAFAYETTE, Ind. Advanced optics such as lasers, crystals and holograms may work in concert with quantum theory to revolutionize computers in this century, promising tremendous speed and abilities that exceed the human brain, according to a new book. Computers created within the next two decades could revolve around a technology in which laser beams converge inside crystals the size of sugar cubes, forming holographic images for processing huge amounts of information, says the author, Purdue University physics Professor David D. Nolte. In his book, "Mind at Light Speed: A New Kind of Intelligence," Nolte describes how optics-based computer technologies may evolve over three generations during the next century. The first generation, which is well under way, has seen the Internet transformed by fiberoptic cables, optical switches and other devices that are based on photonics, or using visible light signals to transmit data. The second generation, perhaps by the year 2020, will revolve around new types of optical processors. These "holographic computers" might use crystals that receive and manipulate data-laden images, processing information much faster than conventional computers.
Dynamic Holograms For Medical Imaging And Laser Guide Stars DYNAMIC holograms, TUMORS AND THE FUTURE OF MEDICAL IMAGING David Nolte, PurdueUniversity (nolte@physics.purdue.edu). Researchers at Purdue University have http://www.scienceblog.com/community/older/2002/B/2002677.html
Extractions: From American Institute of Physics BEST TEST OF SPECIAL RELATIVITY, DYNAMIC HOLOGRAMS FOR MEDICAL IMAGING, AND TAKING THE TWINKLE OUT OF STARLIGHT AT 2002 OPTICS/LASERS CONFERENCE PRESS LUNCHEON -AND - CLEO/QELS POSTDEADLINE PAPERS HIGHLIGHTED Washington, DC, May 14, 2002 Press luncheon speakers will present some of the newest and most interesting topics of the 2002 Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science (CLEO/QELS) meeting in Long Beach, CA. The luncheon will take place on Tuesday, May 21 at noon in the Regency D ballroom at the Hyatt Hotel, adjacent to the Long Beach Convention Center. Reporters wishing to attend should fill out the reply form at the end of this release or contact Ben Stein ( bstein@aip.org CLEO/QELS PRESS LUNCHEON
World Will See Computers In Whole New Light Advanced optics such as lasers, crystals and holograms may work in Photonicapplications in computing could extend far beyond the Internet, he says. http://www.spacedaily.com/news/supercomputer-02a.html
Extractions: Advanced optics such as lasers, crystals and holograms may work in concert with quantum theory to revolutionize computers in this century, promising tremendous speed and abilities that exceed the human brain, according to a new book. Computers created within the next two decades could revolve around a technology in which laser beams converge inside crystals the size of sugar cubes, forming holographic images for processing huge amounts of information, says the author, Purdue University physics Professor David D. Nolte. In his book, "Mind at Light Speed: A New Kind of Intelligence," Nolte describes how optics-based computer technologies may evolve over three generations during the next century. The first generation, which is well under way, has seen the Internet transformed by fiberoptic cables, optical switches and other devices that are based on photonics, or using visible light signals to transmit data. The second generation, perhaps by the year 2020, will revolve around new types of optical processors. These "holographic computers" might use crystals that receive and manipulate data-laden images, processing information much faster than conventional computers.
Optics (from Physics) -- Encyclopædia Britannica Optics (from physics) Because light consists of electromagnetic waves, thepropagation of light can be regarded as merely a branch of electromagnetism. http://www.britannica.com/eb/article-32480
Extractions: Home Browse Newsletters Store ... Subscribe Already a member? Log in This Article's Table of Contents Expand all Collapse all Introduction The scope of physics ... The study of electricity and magnetism Optics Atomic and chemical physics Condensed-matter physics Nuclear physics Particle physics ... The methodology of physics Relations between physics and other disciplines and society Influence of physics on related disciplines Influence of related disciplines on physics The physicist in society Additional Reading ... Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products physics
Photonics Prague 2005 Diffractive and Holographic Technologies for Photonic Systems Experimentalholographic 3D light shaping with a GerchbergSaxton algorithm http://prague.photon-czsk.org/abs_topic_8.php
Nature Physics Portal - Please Log In Onchip natural assembly of silicon photonic bandgap crystals When measuringthe distribution of a light field, it seems that a single atom is up to the http://www.nature.com/physics/archive/12_optical_2001.html
Extractions: To access the nature physics portal, you must first log in with a personal account. To open a free account , associate your e-mail address and obtain a password, please click here to register . This will give you access to all the Nature Publishing Group web sites, including the physics portal. To find out more about the physics portal, please click here E-mail: Password: I have forgotten my password... If you have already registered with any of the Nature Publishing Group's full text websites, you do not need to register again. Simply log in above to reach the physics portal signup page.
Photonics 10 photonics. 10.1 Optical fibres. 10.2 Photoelectronic devices Solymar L,Sheppard CJR (1979) A twodimensional theory of volume holograms with http://www.bioeng.nus.edu.sg/people/colin/Photonics.htm
Extractions: CJR Sheppard 10 Photonics E.4. Jordan MP, Kompfner R, Sheppard CJR, Solymar L (1976) Coupling of optical fibres by means of volume holograms, Proc.6th European Microwave Conference, Rome, pp. 438-442. F. 6. Kompfner, R., Sheppard, C.J.R., Walsh, D., Choudhury, A., Gannaway, J.N., Hale, P.G. (1977) Applications of quantum electronics, Part 2: The metal coating of optical fibres, OUEL Report No. 1184/77. F. 7. Kompfner, R., Sheppard, C.J.R., Walsh, D., Choudhury, A., Gannaway, J.N., Hale, P.G. (1977) Applications of quantum electronics, Part 3: Holographic couplers for optical fibre bundles, OUEL Report No. 1185/77. D. 21. Hale PG, Sheppard CJR (1978) Production of optical fibres using a vacuum furnace, Optik First optical fibres using a vacuum furnace. D. 25. Almeida JB, Hale PG, Sheppard CJR (1979) On line-metal coating of optical fibres, Optik First optical fibres with metal coating.
Extractions: Latest issue OLE home Subscriptions Editorial schedule ... Contacts quick search Search the archive more articles Researchers developing photonic crystals are breaking free of academia to launch next-generation components and fibres into the commercial marketplace. Jeremy Mills assesses the work of the new-entrant suppliers and their prospects for survival. From November 2002 Photonic crystal Pioneers of the technology argue that photonic crystals will revolutionize the field of optics in its broadest sense, with applications ranging from optical memory and quantum computing to photonic integrated circuits smaller than the core of singlemode fibre. But others are more sceptical, dismissing the technology as just another laboratory curiosity that will produce nothing more than conference papers and slick presentations. "People expected holography to change the world," said Jim West, a photonic-crystal researcher at US-based fibre manufacturer Corning. "But right now the only place you'll see holograms is on your credit card." What is now clear is that the pressure is growing for the start-ups to prove that their esoteric technologies can deliver practical products at the right price.
Extractions: Latest issue OLE home Subscriptions Editorial schedule ... Contacts quick search Search the archive more articles Companies around the globe are competing to develop the de facto optical switches to be used in future all-optical communications networks. Nadya Anscombe reports on one of the lesser-known developments in switching technology - electrically switchable holograms. From September 2001 Bragg grating Time and again, the latest developments in optical switching technology have been hailed as the key to the all-optical network of the future. Microelectromechanical systems, for example, are currently receiving a lot of attention, with a plethora of start-up companies racing to be the first to market. However, two start-ups - Israeli company Trellis Photonics and US firm Digilens - have opted to try something completely different. They are working on electrically switchable holographic technology, which uses holograms activated by a voltage to reflect light beams. As with microelectromechanical systems (MEMS), electrically switchable holograms eliminate the need for converting photonic signals into electronic ones. Unlike MEMS, however, electrically switchable holograms contain no moving parts. They are also wavelength selective, have fewer alignment problems and are potentially much faster.
McMaster Engineering Physics | Undergraduate There are four major areas of specialization in Engineering physics, OPTICS MOVIE 2 HOLOGRAM. Optics deal with light and its applications. http://engphys.mcmaster.ca/studentperspective/AreaSpecialization.htm
Extractions: Intro Rumours and Stats Areas of Specialization Social Stuff ... Movies Areas of Specialization official Engineering Physics site for a better understanding of what each of these areas is about and to review the relevant courses. However ... here are a few movies, pictures and words about the areas. OPTICS MOVIE #1 - CD PLAYER OPTICS MOVIE #2 - HOLOGRAM Optics deal with light and its applications. There are many different ways in which light can be used, including optical communications, processing materials, entertainment and making precision measurements. In fact, many people believe that we are entering the photonic era, in which, the use of photons (light) will replace many of the things we do with electronics today. For many other applications of photons, especially piled together in ultrashort pulses see the Photonics Research Laboratories site in the COOL FACILITIES section. MICROELECTRONIC DEVICES Microelectronic Devices deals with the electronic properties of materials, fabrication techniques such as photolithography, device design and applications. This area requires knowledge of materials, physics, and even a little chemistry. Below is a picture of the clean room. Check out COOL FACILITIES to see some more pictures. Clean rooms are required for advanced semiconductor processing because the size of the devices becomes comparable to a speck of dust. To the right is a diagram of a new type of semiconductor laser diode developed at McMaster. For more info check out the Photonics Research Laboratories under COOL FACILITIES.
Pratt School Of Engineering At Duke University prattschoolofengineering.duke university. January 18, 2002. Talking with lightBrady sees growth in photonics First, I took physics classes, he said. http://www.pratt.duke.edu/news/releases/print.php?story=35
Extractions: News for March 2002 1 March 2002 et al Phys. Rev. Lett. The team then fired a caesium atom laser through the interference pattern towards a specially prepared gold substrate behind it. A simple nano-structure then built up on this surface according to the geometry of the interference pattern. Although the regular spacing of interference patterns means that their technique can only be used to make periodic structures, Meschede and colleagues are optimistic that it could become an integral part of the semiconductor industry. Lithography is widely used in the industry to make two-dimensional circuit boards, but a convenient method for creating three-dimensional nanoscale structures has so far been elusive. Joseph Hines is Graduate Liaison Officer at the Institute of Physics Find more News like this every month in Physics World , the magazine for the international physics community. Every issue contains feature articles by leading physicists, news coverage from around the world, plus book reviews, careers advice and much more. To receive
ANU - RSPhysSE Postgraduate Brochure physics and Physical Sciences research at the Australian National University . Some photonics researchers in the device testing lab http://wwwrsphysse.anu.edu.au/admin/pgbrochure/photonics.html
Extractions: Second and third-order nonlinear optical (NLO) effects lead to a variety of useful applications in laser technologies and photonics. We are investigating NLO properties of many classes of potentially technologically useful materials such as organics (e.g. polymers), organometallics, inorganic glasses, metals, organic-inorganic hybrids, semiconductors, composites etc. Many of these materials and structures are being developed in collaboration with other Australian and overseas groups. Our experimental facilities allow us to investigate the NLO properties in a wide wavelength range and with femtosecond temporal resolution. 1b Spatial Squeezing Ultimately, the quality of optical images and the sensitivity of optical scanning techniques is limited by quantum noise of the light. We have found a unique way of using the low noise, squeezed light generated in our laboratory to improve laser scanning, extending it from from 1 to 2 dimensions. The work is in progress with all the equipment in place. Additional projects are planned in microscopy using entangled photons. These experimental projects at the ANU provide opportunities for collaboration and travel to our collaborators in Paris and Boston. 1c Nonlinear Optics and Solitons
Extractions: Search for: Search what? News Product/Service Directory Company Name Directory Brand Directory Sep 23, 2005 Categories Industrial Market Trends All Product Stories Adhesives and Sealants Agricultural and Farming Products ... Browse Categories Resources News Delivery Options Mobile Edition PR Resources Licensing Advertising ... How to Write an effective Press Release Undisputed measurement accuracy up to .0002". Reliable in harsh manufacturing environments. Adaptable software in 7 languages. From design to production, large scale to detail, more pros choose FARO - the global standard for computer-aided measuring. (Showing headlines 1 - 20) 1 Camera Stabilizer accepts cameras from 8 oz to 5 lb. Sep 16, 2005 Weighing 12.8 oz, handheld Merlin is constructed with aluminum alloys and stainless steel weights. Balanced on 3-axis inter-gimbaled handle, it provides precise control over range of focal lengths. Folding Caliper hinge extends and retracts to balance cameras. Multi-tapped dovetail plate features 3-position lever that permits rapid camera mounting and removal from micrometer trim stage, coarse balance adjustments while affixed to stage, and positive attachment of camera. Arm-Mounted Laser Probe minimizes scanning time.
CareerMATTERS - Careers - Photonics Technicians & Technologists Well, photons are units of light energy, and photonics is the technology that deals hologram technologies; entertainment; laser diagnostics and repair; http://www.ilc.org/cfmx/CM/Careers/cm_career_bottom.cfm?career_id=390
¼òÀú Explore the appropriate time and exposure density of hologram photoplate light refraction in one dimensional photonic crystals, Qiu Xinjie , Chen Hong http://webusers.physics.umn.edu/~qiu/aboutme/resume.htm
Extractions: USA Education Department of Physics and Astronomy, University of Minnesota, USA Physics Department, Tongji University , Shanghai Graduate Cumulative GPA: 87.4/100 Major GPA: 87.8/100 Physics Department, Tongji University , Shanghai Undergraduate Cumulative GPA: 85.3/100 Major GPA: 90.5/100 Undergraduate Last Two Years GPA: 87.1/100 Major GPA: 90.0/100 Dr. Mueller Group, Department of Physics and Astronomy, University of Minnesota, June 2003 - Jan 2004 Department of Physics, Hong Kong Baptist University Mar 2002 - Apr 2002 Chen Hong Research Group, Physics Department, Tongji University Oct 1999 - present Optics Lab, Physics Department, Tongji University Sep 1997 ¨C Mar 1999 Department of Physics and Astronomy, University of Minnesota, July 2002 - Current Physics Department, Tongji University Mar 2001 ¨C Jul 2001 Thermodynamics for undergraduate students College Physics Teaching Group, Physics Department
Optics Group » Project Areas » Optical Tweezers By acting as an arbitrary hologram, this one optical component can, for example, (1997) Optical tweezers use a tightly focused beam of light to hold and http://www.physics.gla.ac.uk/Optics/projects/tweezers/
Extractions: Optics group project areas Optical tweezers (April 2005) We've finally made it available: our interactive software for controlling spatial light modulators (written in LabVIEW ). It implements various algorithms for designing phase-hologram patterns on-the-fly, for example the Gerchberg-Saxton algorithm and Direct Binary Search. We use this software to control spatial light modulators supplied by Hamamatsu Boulder Nonlinear Systems and HoloEye for applications in free-space optics, optical tweezers and complex beam generation. [download...] (January 2004) We have used our computer-controlled holographic optical tweezers to make eight microscopic glass spheres dance the smallest Strip the Willow in the world! (Just for fun.) [more...] Optical tweezers have been used to trap and manipulate objects since the late 1980s. As long ago as 1991, many groups (including ours) have devised differing methods for transforming tweezers into optical spanners : optical tools that allow microscopic objects not only to be translated but also rotated. However, all previous work has had one limitation: the axis of rotation has been restricted to be parallel to the axis of the beam. Using holographic spatial light modulators we have produced specially engineered light beams capable of rotating trapped objects about any axis - including the elusive somersault!
Physics News Graphics: Condensed Matter A new procedure allows atomicscale real-space gamma-ray holograms to be formed First 3D photonic crystal will be useful in optical integrated circuits. http://www.aip.org/png/cat6.html
