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Saturday, May 16, 2020 | History

3 edition of Potential of solar-simulator-pumped Alexandrite lasers found in the catalog.

Potential of solar-simulator-pumped Alexandrite lasers

Potential of solar-simulator-pumped Alexandrite lasers

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Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va .
Written in

    Subjects:
  • Lasers.

  • Edition Notes

    Other titlesPotential of solar simulator pumped Alexandrite lasers.
    StatementRussell J. De Young.
    SeriesNASA technical memorandum -- 102701.
    ContributionsLangley Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15396274M

    approach. These lasers range from the short end of the spectrum with nm ruby laser[2], to the middle, with the nm Alexandrite[3] and nm diode[4], to the long end with the nm Nd;YAG laser[5]. The laser Wavelength determines both the amount of energy absorbed by the target and the surrounding tissue in function of their. Facial Review Chapter 8 Advanced Book. Chapter 8 Advanced Book. STUDY. PLAY. Lasers have the potential to ignite: Alcohol-based cleansing solutions, Plastic, Cotton sponges All answers. A Q-switched nm alexandrite laser affects all but which of these tattoo dye colors? Red.

    COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. AIWA ESTHETIC. We offer consultations by highly qualified professionals and unique treatments with innovative laser equipment of the leading manufacturers, such as Lumenis M22, CO2RE, Alexandrite lasers, as well as top quality injections and state-of-art technologies, e.g. Allergan, Belotero Merc, RegenLab PRP etc. Laser treatments may replace a number of surgical interventions that way.

    The Photonics Buyers' Guide is a comprehensive resource for verified providers of Alexandrite Lasers. Profiles and contact information for manufacturers and suppliers are provided by the companies and verified by our editors. If you have updated information about any . Laser hair removal is the process of hair removal by means of exposure to pulses of laser light that destroy the hair had been performed experimentally for about twenty years before becoming commercially available in and One of the first published articles describing laser hair removal was authored by the group at Massachusetts General Hospital in


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Potential of solar-simulator-pumped Alexandrite lasers Download PDF EPUB FB2

An attempt was made Potential of solar-simulator-pumped Alexandrite lasers book pump an alexandrite laser rod using a Tamarak solar simulator and also a tungsten-halogen lamp. A very low optical laser cavity was used to achieve the threshold minimum pumping-power requirement.

Lasing was not achieved. The laser threshold optical-power requirement was calculated to be approximately W/sq cm for a gain length of cm, whereas the Author: Russell J. Deyoung. Get this from a library. Potential of solar-simulator-pumped Alexandrite lasers.

[Russell J De Young; Langley Research Center.]. Potential of Solar-Simulator-Pumped Alexandrite Lasers R. De Young High Energy Science Branch Space Systems Division NASA Langley Research Center Hampton, VA Abstract An attempt was made to pump an alexandrite laser rod using a Tamarak solar simulator and also a tungsten-halogen lamp.

A very low loss optical laser cavity. An attempt was made to pump an alexandrite laser rod using a Tamarak solar simulator and also a tungsten-halogen lamp. A very low optical laser cavity was used to achieve the threshold minimum pumping-power requirement. Lasing was not achieved.

The laser threshold optical-power requirement was calculated to be approximately W/sq cm for a gain length of cm, whereas the Tamarak.

Potential of solar-simulator-pumped alexandrite lasers. By Russell J. Deyoung. Abstract. An attempt was made to pump an alexandrite laser rod using a Tamarak solar simulator and also a tungsten-halogen lamp.

A very low optical laser cavity was used to achieve the threshold minimum pumping-power requirement. Lasing was not : Russell J.

Deyoung. Dye lasers operate in this way as do a less well known but earlier class, the “phonon terminated,” or “vibronic” solid state laser, of which alexandrite is a prime example.

Keywords Emission Cross Section Optical Damage Pump Chamber Mirror Site Alexandrite Laser. Laser-solid interactions and laser processing,Materials Research Society, Boston / editors, S. Ferris, Book, Author: Symposium on Laser-Solid Interactions and Laser Processing, ( Boston, Mass.) Potential of solar-simulator-pumped Alexandrite lasers [microform] / Russell J.

De Young. We report on two visible solar pumped lasers; a red alexandrite laser with a potential tunability range between and nm, and a frequency doubled Nd:YAG laser operating at nm.

Highly concentrated solar energy was obtained by a 3-stage concentrator. An output power of up to 12 W was obtained from the alexandrite laser. The conversion of sunlight into laser light by direct solar pumping is of potential importance because broadband, diffuse, temporally constant, sunlight is thereby converted into laser light, which can be a source of narrowband, collimated, rapidly pulsed, radiation with the possibility of obtaining extremely high brightness and intensity.

High power, CW and pulsed alexandrite lasers were produced by pumping the laser rod with high quality diode pumped nm laser sources. This pumping architecture provides stable performance with.

Alexandrite lasers with a broad tuning band pumped efficiently by low-cost red diodes are a potential candidate, but full performance as a precision light source has not been fully achieved.

This book represents the most up-to-date description of the state of the art in laser and light source technology. After an initial chapter describing the latest understanding of laser physics and safety, subsequent chapters take up the laser treatment, respectively, of vascular lesions, pigmented lesions and tattoos, unwanted hair, ablative and non-ablative resurfacing, and its use for 2/5(1).

Some typical indications for laser treatment are port wine stain lesions of different colour, hemangioma, condylomata acuminata, tattoos, scars, carcinoma etc. In the above chapters of this book the clinical potential of lasers in dermatology is extensively discussed.

Are there still open questions and is there really a need for new types of. Laser communications in space / Stephen G. Lambert and William L. Casey; Laser Light Scattering Instrument [microform]: Advanced Technology Development; Tm, Ho:YLF laser end pumped by a semiconductor diode laser array [microform]: patent application; Potential of solar-simulator-pumped Alexandrite lasers [microform] / Russell J.

De Young. Such lasers are usually employed through an in-motion manner, with several short pulses and a high frequency. Patients often consider this laser more tolerable than the long pulsed Nd:YAG []. Alexandrite laser. Since the long pulse nm Alexandrite laser has been utilised with efficacy in laser hair removal.

Lasers represent a relatively new group of devices used within the field of cutaneous surgery. The field of laser surgery continues to advance with the addition of new devices and the expansion of indications for laser therapy.

A laser's wavelength, energy, and pulse duration are used to target a desired chromophore. The most common chromophores are water, hemoglobin, and pigment (e.g.

The alexandrite–chromium doped chrysoberyl (Cr 3 +: 2 O 3) laser is a broadly tunable solid-state vibronic system that operates at wavelengths between and nm. The growth of alexandrite crystals for laser application was begun in the early s, and in the first alexandrite laser (working in a three-level scheme, as ruby) was put into operation (Morris and Cline, ).

Rev Speed. Versatility. Quality. Nov, May Lee Global Product Management Long Pulsed Alexandrite & Nd:YAG Laser. • Alexandrite laser The alexandrite laser is based on the production of light using a crystal of alexandrite.

The light is calibrated to a specific wavelength of nanometers (deep red). This wavelength is strongly absorbed by the melanin in the skin and in particular that of the hair.

Long‐pulsed Nd:YAG is often considered safest for use in darker skin types. Depending on the source consulted, long‐pulsed diode or long‐pulsed alexandrite laser may also be suggested for use in darker skin types.

Current knowledge of lasers for hair removal in the. Alexandrite rods can be pumped with very powerful flash lamps, with which one could fracture Nd:YAG rods. In many cases, roughly 10 cm long cylindrical laser rods with a diameter of e.g.

mm (1/4 inch) are used and lamp-pumped with one or two xenon flash to the particularly high mechanical and thermo-mechanical strength of the material and its benign thermo-optical properties.The alexandrite laser was invented in the year Chrysoberyl crystal is an aluminate of beryllium, having formula BeAl 2 O 4.

The alexandrite is a tunable laser, with the tunable wavelengths.The use of Q-switched alexandrite lasers has improved the process of tattoo removal and today is considered the standard of care. Alexandrite laser treatment is used to remove black, blue and green pigment. The laser treatment involves the selective destruction of ink molecules that are then absorbed by macrophages and eliminated.