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Topic: Laser science

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 lllt - laser therapy -. Laser Therapy (LLLT) science many LLLT abstracts
According to laser therapy treatment protocol for open wounds, a single diode laser probe was used for biostimulation of the wound bed and the wound periphery.
The advantage of a laser therapy is encompass bayed volume, that with its (her) help it is possible to affect different bodies (organs) and tissues of and organism, calling (causing) indispensable reacting of these tissues and bodies (organs) and if necessary it is possible to receive the greatest effect in indispensable period.
Laser devices used in all groups of patients were infrared diode laser (GaAlAs) 830 nm continuous wave for treatment of TPs and HeNe 632,8 nm combined with infrared diode laser 904 nm.
www.laser.nu /lllt/lllt_science7.htm   (7658 words)

 The Promise and Problems of Laser Weapons
The laser could be added to or removed from several tactical platforms such as ground combat vehicles, fighters, or rotorcraft, according to the report.
The laser is based on technology called "superconducting radio-frequency accelerators" and departs "significantly from other solid-state, chemical, and diode technologies," the report said.
A fired laser encounters turbulence, scintillation, and other hurdles in the atmosphere that must be compensated for in order to deliver a solid beam to the target.
www.afa.org /magazine/dec2001/1201laser.asp   (2032 words)

 Tesla coil science fair project plan & plans for building a cathode ray & laser.
Tesla coil science fair project plan and instructions for building a cathode ray tube, a helium-neon laser and a plasma globe powered by the Tesla coil.
Laser radiation is produced when a gas discharge tube is highly evacuated and then filled with gas, placed between two mirrors forming a resonant optical cavity.
The laser is of the type that supermarket checkout lanes use and is not hazardous.
www.primeline-america.com /science   (1129 words)

 Laser tutorial 1 (WSRNet)   (Site not responding. Last check: 2007-08-10)
Lasers come in wide variety of forms, the processes that go on inside them differing greatly from one type of laser to another.
In a neodymium YAG (Nd:YAG) laser, the amplifying medium is a rod of yttrium aluminium garnate (YAG) containing ions of the lanthanide metal neodymium (Nd).
In a helium-neon laser, it is a mixture of the gases helium and neon.
members.aol.com /WSRNet/tut/ut1.htm   (492 words)

 Laser Science Services (I) Pvt Ltd - Home
Laser Science was started way back in 1988 in a small office with an aim to bring advanced laser based products in India and boost laser base research in our country's premier research institutes.
Laser has done its job thoroughly by keeping the scientific community aware of the latest technology products available anywhere in the world and today, with over 250 installation all over India, Laser Science is well known in the scientific community as one of the best distributor company.
Laser Science has the privilege of bringing many new laser technologies in to India including the first fmtosecond fiber laser, a KHz femtosecond laser system, highest power (7TW) fmtosecond laser system and the first pulsed ns DPSS laser.
www.laserscienceindia.com   (217 words)

 Lasers-Science Tracer Bullet-Library of Congress
The laser medium consists of a collection of atoms, molecules, ions, or a crystalline solid or semiconducting crystal, that generates laser light.
Laser light is emitted in a directional beam, and can be produced from the x-ray through to the ultraviolet, visible, and infrared radiation parts of the spectrum.
Laser applications include materials working (i.e., cutting, welding, drilling, and otherwise modifying industrial materials, including both metals and nonmetals), communications and information processing, medicine, measurement and inspection, data capture, surveying, marking, and alignment, printing and graphics, laser weaponry, isotope enrichment, holography, inertial confinement fusion, spectroscopy and atomic physics, and plasma diagnostics.
www.loc.gov /rr/scitech/tracer-bullets/laserstb.html   (1281 words)

 ScienceDaily: Scientists Succeed In Cooling Solid Material With Laser
Science Daily — A team of researchers at the University of the Basque Country (UPV/EHU) have experimentally demonstrated something that other scientists have been trying to achieve for decades: the cooling of erbium-doped materials with laser light.
These devices would function by means of dual laser pumping in which the light wavelengths would be used for the laser pumping and the other wavelength (close to the previous one) to produce optical cooling that would counteract the heating produced by the laser action.
Laser Trapping Of Erbium May Lead To Novel Devices (April 30, 2006) -- Physicists at the National Institute of Standards and Technology (NIST) have used lasers to cool and trap erbium atoms, a "rare earth" heavy metal with unusual optical, electronic and magnetic...
www.sciencedaily.com /releases/2006/07/060726091030.htm   (1747 words)

 Lighthearted Transistor: Electronic workhorse moonlights as laser: Science News Online, Nov. 20, 2004   (Site not responding. Last check: 2007-08-10)
The transistor laser is "a major technology breakthrough in high-speed optoelectronics," comments K.C. Wang of HR Laboratories in Malibu, Calif.
Although the team currently must chill its microdevice to –73°C to achieve laser action, "we believe we'll be [using the device] at room temperature very soon," Feng says.
Laser operation of a heterojunction bipolar light-emitting transistor.
www.sciencenews.org /articles/20041120/fob3.asp   (515 words)

 Laser Science Projects - Intermediate Projects - www.LaserFX.com
The Laser science projects on this page are at the intermediate level and require more equipment and parts to construct than the basic projects.
Arrange the laser so that when it is shone onto the mirror, the beam will be deflected onto a clear area of a wall or screen.
When sound is fed through the speaker the laser will trace a pattern on the wall visualising the music.
www.laserfx.com /Science/Science8.html   (1015 words)

 ESA Science & Technology: Laser Mass Spectrometer
The Laser Mass Spectrometer (LMS) is part of the actual challenge of reducing the size and the power consumption of various instruments to be accommodated on a lander or rover, for in-situ studies of planetary environment.
Built around a miniature mass spectrometer and a laser ablation system; the LMS was designed initially to be deployed on an airless body, in the frame of the rover of the BepiColombo mission to Mercury.
Its purpose is to measure the elemental and isotopic composition of solids, for example: rocks and soils in a single instrument.
sci.esa.int /science-e/www/object/index.cfm?fobjectid=35986   (325 words)

 Wheaton College: Science: Laser/Optical Materials Research Group
Ceramic laser materials have recently received a lot of attentions because they are potentially great candidates for high-efficiency microchip or high power lasers.
The most prominent rare earth ion in laser applications is trivalent neodymium (Nd) ion, which yields strong emission at wavelengths around 0.9, 1.0 and 1.3 micon when doped in a variety of hosts.
The work on Nd doped laser crystals is to investigate thermal line position tuning (shift) and broadening of the Nd luminescence lines in different host crystals, focusing on garnet and fluoride hosts.
www.wheatonma.edu /Science/Research/laser.html   (581 words)

 Physiology: The Science of Laser Hair Removal
Laser hair removal success is dependent upon the natural physiology of hair.
Laser hair removal also depends on different characteristics of hair, as mentioned earlier, such as coarseness, depth of the follicle, and color.
An experienced physician well-trained in laser technology should be able to achieve high success rates with a great safety record.
laserhairremovalprocess.com /a-physiology.html   (281 words)

 Laser - Wikipedia, the free encyclopedia
Many lasers are designed for a higher peak output with an extremely short pulse, and this requires different technology from a continuous wave (constant output) laser such as is used in communication, or cutting.
However, fiber lasers do have a fundamental limitation: The intensity of the light in the fiber is so high that optical non linearities induced by the local electric field strength can become dominant and prevent laser operation and/or lead to the destruction of the entire fiber laser.
Lasers used by hobbyists are generally class IIIa or IIIb lasers, although some have made their own class IV lasers.
en.wikipedia.org /wiki/Laser   (5022 words)

 Welcome to the Seattle Laser Dome
The Laser Dome announces the return of Laser Beatles featuring all new visual effects set to classic Beatles songs never before seen in laser light.
All of the newest Laser Beatles imagery was created right here, on site by our very own PSC laser artists, using the newest in state of the art, laser programming equipment.
Laser Floyd: Wish You Were Here is performed live Sunday nights, at 9:15 PM in the Laser Dome.
www.seattlelaserdome.com   (414 words)

 Bright future for tactical laser weapons
Lawrence Livermore laser technician Balbir Bhachu monitors the performance of the 13-kilowatt neodymium-doped glass version of the solid-state heat-capacity laser during a low-power test.
Project manager Brent Dane, of Livermore’s Laser Science and Technology program, notes that the ultimate objective of the project is to build a next-generation system with enough electrical efficiency to produce a 100-kilowatt laser beam from the same 1 megawatt of input power.
Although laser diodes are extremely efficient devices by ordinary laser standards—they typically convert 50 percent of their electric input power into light output—the remaining 50 percent of the input power shows up as high-intensity heat from a very compact source.
www.eurekalert.org /features/doe/2002-04/dlnl-bff053102.php   (1390 words)

 Sam's Laser FAQ - Laser Experiments and Projects
Read the chapter: Laser Safety in its entirety and follow its guidelines - particularly in regards to the safety of others who may not be as aware as you in dealing with your equipment.
All that is needed is a short HeNe laser tube to which a heater has been added, some optics and photodiodes to sample the amplitude of either one mode polarization or two mode (orthogonal) polarizations, and some basic electronic components to implement the control loop.
HeNe laser tube: Suitable choices are tubes from Hewlett Packard model 5501 or 5517 laser heads (with or without output optics but including the original ring magnets), or home-built versions of these using common non-polarized 5 or 6 inch barcode scanner HeNe laser tubes with powerful ring magnets polarized N-S along their axis.
repairfaq.ece.drexel.edu /sam/laserexp.htm   (7103 words)

 Aesthetic Science Institute :: Laser Hair Removal - Boca Raton, Florida
This laser system is unique as it offers sapphire tip contact cooling along with a skin sparing long pulse width.
Older lasers limited us to light skinned, dark haired patients without tans but the Sciton system allows us to treat all skin types including tanned patients and all hair colors and thicknesses.
The effect of the laser is to cause energy absorption along the hair follicle while sparing the skin and surrounding tissue.
asimd.xt-labs.com /en/laserhair/index.html   (309 words)

 CADwire.net - Directory > Science > Physics > Optics
The Laser and Fiber Optic Revolution - This article describes the conception and development of both laser technology and the fibers that allow transmission of a light signal over long distances.
Laser Sensors and Research - A description of research related to applications of lasers in several areas at Old Dominion University.
Research works on infrared laser sensing - this site is devoted to the research in the field of laser sensing and deals with infrared heterodyne spectroscopy, tunable semiconductor laser sources in the middle infrared and their uses in molecular detection.
www.cadwire.net /directory/dir.asp?/Science/Physics/Optics/Lasers   (848 words)

 The Division Of Laser Science Of The American Physical Society
The Division Of Laser Science Of The American Physical Society
The Division of Laser Science is a subunit of the American Physical Society (APS) specifically concerned with the use of lasers, the application of lasers in technology, and the interests of the laser science community within the APS.
Sponsors the Interdisciplinary Laser Science (ILS) and cosponsors the Quantum Electronics and Laser Science (QELS) Conferences.
www.physics.wm.edu /~cooke/dls/dls.html   (178 words)

 Science on High-Energy Lasers: From Today to the NIF
There is considerable interest across the scientific community in the kinds of science that can be studied using high-energy lasers.
For each of these scientific areas, we look first at the kinds of studies that can be performed today using current laser facilities.
Even using this kind of conservative approach to projections for future investigations, it is clear that the development of new higher energy lasers will make many extremely exciting areas accessible to a wide range of scientists.
www.llnl.gov /science_on_lasers/DocMap.html   (284 words)

Laser surgery and cancer  (University of Rochester Medical Center)
Laser Trap for Cesium Atoms (University of Southern California)
Institute for Lasers, Photonics and Biophotonics   (University at Buffalo)
members.aol.com /WSRNet/laser.htm   (267 words)

 National LASER K-8 Science Education Strategic Planning Institute: Goals
The National LASER K–8 Science Education Strategic Planning Institute will help school district leadership teams bring about the systemic reform of science education in their communities.
Curriculum—Science curricula that are based on the National Science Education Standards and are produced through a careful research and development process
Professional Development—Programs that prepare educators to teach inquiry-centered science and that consider professional growth to be a long-term process
www.laserscienceevents.si.edu /SPI/SPI_goals.html   (237 words)

 Laser Science Projects - Introduction - www.LaserFX.com
Laser light shows represent one of the most visible applications of lasers and certainly the most entertaining use of lasers.
These include a bibliography, a glossary of terminology used in laser displays, information on other applications of lasers, basic laser safety information, and a listing of selected educational laser resources on the Internet.
If this area has helped you to complete a science project, or your have an interesting project you have completed, let us know by e-mail.
www.laserfx.com /Science/IndexScience.html   (362 words)

 Science - Atmospheric Laser Spectroscopy   (Site not responding. Last check: 2007-08-10)
JPL's Atmospheric Laser Spectroscopy Group seeks to understand the photochemistry, dynamics, and evolution of Earth and planetary atmospheres through interpretation of in-situ measurements of gas, particulate, and mineral composition using state-of-the-art laser spectrometers built by the group.
Over the last 20 years we have conceived, designed, and built a variety of tunable diode laser (TDL) and Quantum-Cascade (QC) laser spectrometers that have flown on balloon, aircraft, and spacecraft platforms.
In addition, we are developing room-temperature mid-IR Quantum Cascade Laser Spectrometers for Mars, Titan, Venus, and Europa, and are part of JPL's Grand Challenge Project studying biogenic gases and their isotopic ratios as signatures of extraterrestrial life.
science.jpl.nasa.gov /PlanetaryScience/LaserSpectroscopy/index.cfm   (182 words)

 APS Division of Laser Science: Newsletters: September 2006
It will be a great pleasure to provide you with laser science news and updates on conferences, awards, events and research.
The leadership of the Division of Laser Science (DLS) of the American Physical Society is pleased to welcome you to our annual meeting, called LS-XXII, in Rochester in October, 2006.
The technical sessions of this year’s LS meeting are organized around seven focused themes: Quantum Information Science, Precision and Quantum Enabled Measurements Cold atoms and Molecules, Ultrafast laser science (Joint with FIO), Nonlinear Optics, Optics in Condensed Matter Physics, and Biomedical Laser Science (joint with FIO).
units.aps.org /units/dls/newsletters/september06.cfm   (2350 words)

 Sportlaser Website
Low level lasers, a class of medical lasers, sometimes referred to as soft lasers or cold lasers is the emerging therapeutic modality in the healing arts community.
Nanometers, wavelength, photo bio-stimulation, photo bio-modulation, phototherapy, infrared, near infrared, super luminescent LED’s, frequency, non thermal therapy, FDA clearance, milliwatts, laser probes, light pads, scope of practice, seminars and disingenuous use of abstracts and studies by other companies are just a few of the terms and obstacles you face when exploring this straightforward science.
In fact, our director of science, Rick Martin has not only authored peer-reviewed articles explaining the process of laser light’s effect on cellular mechanisms, but has developed entire curriculums for use in educating students and clinicians about laser science.
www.sportlaser.com   (824 words)

 Washington State LASER > South Central Alliance
The South Central Washington State LASER Alliance partners with 22 school districts and 2 private schools to support the ESD 105 Science Education Cooperative in implementing a regional K-6 inquiry science curriculum program.
A total of 2600 science kits will be implemented in regional classrooms during 2006-2007.
Attendance at a LASER Strategic Planning Institute and the development of a science strategic plan is a requirement for districts to belong to the Science Education Cooperative.
www.wastatelaser.org /_resources/alliances/southcentral.asp   (408 words)

 MTHEL - Mobile Tactical High Energy Laser: Science Fiction in the News
The Mobile Tactical High Energy Laser (MTHEL) is a chemical laser-based energy beam weapon currently under development by the U.S. Army and Israel.
In science fiction, energy beam weapons have been in use since War of the Worlds, published by H.G. Wells in 1898; see the article for the heat ray.
Technovelgy.com is devoted to the creative science inventions of sf authors.
www.technovelgy.com /ct/Science-Fiction-News.asp?NewsNum=163   (371 words)

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