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Showing 1 to 20 of 88 for “"Nd:YAG"”.

  1. Stabilisierung der Ausgangsleistung eines resonatorintern frequenzverdoppelten Nd:YAG-Lasers

    Lange, FalkUniversität Oldenburg

    … Festkörperlaser besitzen insbesondere im spektralen Bereich von grün bis blau ein beträchtliches technisches Potential. Der wichtigste Grund dafür ist der hohe Wirkungsgrad, der sich durch die resonatorinterne Frequenzverdoppelung erzielen läßt. Ein aus technischer Sicht …

    oldenburg Repository record

  2. Interference of Intensity Noise in a Multimode Nd:YAG Laser

    Hill, Timothy James2003

    … the intensity noise in a multi-longitudinal mode Nd:YAG laser. This type of laser is a nonlinear system which exhibits complicated dynamics within the intensity noise. For example, antiphase dynamics is where there is cancellation of one or more collective modes of oscillation, which are distinct …

    adelaide Repository record

  3. Aufbau und Charakterisierung eines hochstabilen Nd:YAG Lasers für ein Indium Frequenznormal

    Eichenseer, MarioLudwig-Maximilians-Universität

    … (Uhrenübergang) des einfach ionisierten Indiums (lambda = 236,5 nm) gilt als einer der aussichtsreichsten Kandidaten für ein neues Frequenznormal im optischen Bereich mit einer relativen Genauigkeit von 10^-18. Als kurzzeitstabilen Oszillator benötigt man hierfür einen Laser mit einer …

    lmu-germany Repository record

  4. Didelės energijos keturių lėkių Nd:YAG stiprintuvas su SBS impulso spūda interferenciniam struktūravimui /

    Klumbys, Domantas,Institutional Repository of Vilnius University2024

    … widely used in electronics [1], biomedicine [2] and materials science [3]. Due to its versatility, high speed, precision and simplicity, lasers are often used in surface structuring. Direct Laser Interference Patterning (DLIP), is a laser-based technology that uses the physical principle of …

    vilnius Repository record

  5. Versuche mit gepulsten Nd:YAG- und Ho:YAG-Lasern am in-vitro Truthahn-Modell

    Boessner, PatrickLudwig-Maximilians-Universität

    … mehr auf das Ausmaß der erzielten Koagulations- und Karbonisationszone auswirkt. Dieser Grenz-wert ist bei einer Perfusionsstärke von ca. 11-12 ml pro Minute zu erwarten. Die Maximaltemperatur (Tmax) des bestrahlten Gewebes verringert sich annährend linear um ca. 15% über den Perfusionsbereich von …

    lmu-germany Repository record

  6. Untersuchung der Sanierbarkeit von humanen Papillomvirus (HPV)- assoziierten Genitaleffloreszenzen durch Nd:YAG-Lasertherapie

    Ziller, FabianLudwig-Maximilians-Universität

    lmu-germany Repository record

  7. Influence of Application Methods on Results of Contact Transscleral Nd:YAG Laser Cyclophotocoagulation

    김, 대희2011

    "목 적: 난치성 녹내장 환자에서 조사 방법에 따른 접촉식 경공막 Nd:YAG 레이저 모양체 광응고술 후 안압의 변화와 저안압증의 발생에 영향을 미치는 인자에 대해 알아보고자 하였다. 대상과 방법: Nd:YAG 레이저 모양체 광응고술을 시행 받고 1년 이상 추적 관찰이 가능했던 난치성 녹내장 환자 36명, 36안을 대상으로 후향적 연구를 시행하였다. 경공막 접촉식 모양체 광응고술을 7W-10W의 출력으로 0.7초, 1열 혹은 2열, 180도 이하 또는 180도 초과 등으로 조사방법을 달리하여 시행하였고 시술 전 후 안압과 안압 …

    ajou Repository record

  8. Efficient, high-power operation of CW Yb:YAG and Q-switched Nd:YAG planar waveguide lasers

    Thomson, Ian JamesHeriot-Watt University2010

    … allow for lasers with good beam-quality and high-e ciency. A Neodymium doped YAG planar waveguide laser was actively Q-switched using a hybrid unstable resonator and acousto-optic modulator. A Yt- terbium doped YAG planar waveguide laser was side-pumped using two laser diode stacks with a …

    heriot-watt Repository record

  9. Diagnostic and treatment tactics and Nd: YAG laser therapy in conditions of acute bleeding associated with gastric and duodenal ulcers // Диагностичнo-лечебна тактика и Nd:YAG лазер терапия в условията на остро кървене от стомашни и дуоденални язви

    Игнатов, Валентин, Ignatov, ValentinMedical University of Varna2019

    … и анализ на резултатите от приложението на Nd:YAG лазерната хемостаза при пациенти с кървене от СДЯ в условията на спешност. Проучени са 325 болни с остро кървене от СДЯ. При 295 е извършена Nd:YAG ЛФК. При 30 пациента - монополярна електрокоагулация. До втория час от приемането на …

    varna Repository record

  10. Retrospektiver Vergleich der Behandlungsergebnisse konventioneller Resektionstechniken des NSCLC im Stadium Ia/Ib mit Lasersegmentresektionen unter Anwendung eines neu entwickelten 1318nm Nd:YAG-Lasers

    Huscher, StefanTechnische Universität Dresden

    … Entwicklung genommen. Die Inzidenz und Mortalität ist in den letzten 15-20 Jahren bei Männern zwar leicht rückläufig, für Frauen ist jedoch ein entgegen gesetzter Trend zu erkennen. Dies wird in erster Linie auf die veränderten Lebensgewohnheiten, wie steigender Zigarettengenuss unter …

    qucosa-diss

  11. The effects of Nd:YAG laser cyclophotocoagulation on corneal sensitivity, intraocular pressure, aqueous tear production and corneal nerve morphology in the canine eye

    Weigt, Anne KelleyVirginia Tech2001

    … ulceration with prolonged healing following Nd:YAG laser cyclophotocoagulation in dogs is a frequent complication. It is hypothesized that these corneal ulcerations may be a form of neurotrophic keratitis due to laser-induced damage to corneal innervation. Fifteen clinically normal dogs had …

    vt Repository record

  12. Laser spectroscopy of color centers in yttrium aluminum garnet

    Hewitt, JohnUniversity of Illinois at Urbana-Champaign2010

    Nd:YAG lasers have become ubiquitous as tools for spectroscopy, materials processing, and medical care. It is well known by crystal growers that lattice defects in Nd:YAG can stifle laser efficiency, but to date very little has been done to isolate and characterize individual YAG defects. Knowing …

    uiuc Repository record

  13. Anwendungen von Pikosekunden- und Dauerstrich-Lasern mit hoher Ausgangsleistung in der stereotaktischen Neurochirurgie

    Velten, AndreasUniversität Heidelberg

    Im Rahmen der vorliegenden Arbeit wurden Laserstrahlen eines Nd:YAG-Pikosekunden-Lasersystems mit einer maximalen Ausgangsleistung von 6 W und eines Nd:YAG-Dauerstrichlasers mit einer Leistung von 28 W fuer Anwendungen in der stereotaktischen Neurochirurgie verfuegbar gemacht. Hierbei galt es, die …

    heid-diss Repository record

  14. An attampt to measure the electron temperature of a Xenon Chloride excimer laser discharge plasma by Thomson scattering

    Hughes, Michael K. Y.University of British Columbia1993

    … timing system was developed so that a commercial Nd:YAG regenerative amplifier could be triggered remotely with a BNC cable and pushbutton switch. This system was used to accurately time a Xenon Chloride transverse discharge laser to the short, high power Nd:YAG pulse to within 5 ns. Attempts were …

    ubc Repository record

  15. Multi-Watt, diode-pumped planar waveguide lasers

    Bonner, C.L.University of Southampton2000

    … epitaxy (LPE), pulsed laser deposition (PLD) and direct bonding, were investigated. A Nd:GGG on YAG waveguide fabricated by PLD was found to have a loss <0.5dB/cm, the lowest so far reported for a PLD layer. The waveguide lased on the four-level laser transition at around 1µm and, for the first …

    soton Repository record

  16. Intensity stabilization of a solid-state laser for interferometric gravitational wave detectors

    Rollins, Jameson Graef, 1976-Massachusetts Institute of Technology2004

    … the intensity of a 10 Watt continuous-wave Nd:YAG laser. A relative intensity noise of 1 x 10⁻⁸ [square root] Hz at 10 Hz has been achieved.

    mit Repository record

  17. EFFECTS OF LASER MACHINING ON STRUCTURE AND FATIGUE OF 316LVM BIOMEDICAL WIRES

    Lavvafi, HosseinCase Western Reserve University School of Graduate Studies2013

    … in minimally invasive surgical techniques and an increasing need to miniaturize medical devices has led to a surge in developing advanced manufacturing techniques. In order to meet the functional needs of such small devices as cardiovascular stents, guide wires, and needles, the use of new …

    ohiolink Repository record

  18. High-brightness diode-pumped waveguide lasers

    Mackenzie, J.I.University of Southampton2003

    … planar waveguide (PW) lasers. Efficient and compact planar waveguide lasers are made possible by their geometry, which is compatible with that of high-power diode lasers, has very good thermal management characteristics, and delivers high optical gains per unit pump power. Thus using the …

    soton Repository record

  19. Coherent anti-Stokes Raman spectroscopy of diamond

    Viranna, Narendra BalaguruDepartment of Physics1997

    … Anti-Stokes Raman Scattering (CARS) in diamond. Aspects of this type of non-linear scattering are presented theoretically, and various experimental configurations were attempted in order to study them. These included the dependence of the CARS signal intensity on the intensities of the two …

    cape-town Repository record

  20. Internal and External Vibrations of Weakly Bound Molecular Complexes: Infrared Spectroscopy and Vibrational Analysis

    Kolenbrander, Kirk DavidUniversity of Illinois at Urbana-Champaign2014

    … used to study the internal (intramolecular) and external (intermolecular) vibrations of weakly bound molecular complexes in a molecular beam apparatus. The apparatus features a continuous supersonic expansion source and mass selective detection which employs electron impact ionization and …

    uiuc Repository record

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