TITLE

Laser energy deposition at sapphire surfaces studied by pulsed photothermal deformation

AUTHOR(S)
Dreyfus, R. W.; McDonald, F. A.; von Gutfeld, R. J.
PUB. DATE
May 1987
SOURCE
Applied Physics Letters;5/25/1987, Vol. 50 Issue 21, p1491
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A surface deformation technique measures the energy deposited in sapphire surfaces irradiated by focused excimer laser light. The absorbed energy creates ≲3 electron-hole pairs/oxygen atom, consistent with a photochemical etching mechanism.
ACCESSION #
9823080

 

Related Articles

  • Ultrafast structural deformation of polyatomic molecules in intense laser fields. Yamanouchi, Kaoru; Hishikawa, Akiyoshi; Iwamae, Atsushi; Liu, Shilin // AIP Conference Proceedings;2000, Vol. 500 Issue 1, p182 

    The momentum vector distributions of fragment ions produced through the Coulomb explosion of small molecules such as NO, CO[sub 2], NO[sub 2], and H[sub 2]O in intense laser fields (∼1 PW/cm2) are measured by the mass-resolved momentum imaging (MRMI) technique...

  • Theory of the generation of mechanical vibrations by laser radiation in solids containing internal stresses on the basis of the thermoelastic effect. Muratikov, K. L. // Technical Physics;Jul99, Vol. 44 Issue 7, p792 

    The behavior of the nonsteady deformations in solids containing internal stresses under irradiation by temporally modulated laser radiation is analyzed. In the framework of the nonlinear theory of thermoelasticity a model is proposed for the excitation of mechanical vibrations with allowance for...

  • Indentation-induced damage in GaN epilayers. Bradby, J. E.; Kucheyev, S. O.; Williams, J. S.; Wong-Leung, J.; Swain, M. V.; Munroe, P.; Li, G.; Phillips, M. R. // Applied Physics Letters;1/21/2002, Vol. 80 Issue 3, p383 

    The mechanical deformation of wurtzite GaN epilayers grown on sapphire substrates is studied by spherical indentation, cross-sectional transmission electron microscopy (XTEM), and scanning cathodoluminescence (CL) monochromatic imaging. CL imaging of indents which exhibit plastic deformation...

  • Temperature-tunable sapphire windows for reflection loss-free operation of vapor cells. Jahier, E.; Guéna, J.; Jacquier, Ph.; Lintz, M.; Papoyan, A.V.; Bouchiat, M.A. // Applied Physics B: Lasers & Optics;2000, Vol. 71 Issue 4, p561 

    Abstract. We have developed a "temperature-tunable cell", for which the reflected intensity of a laser beam on a chosen window can be reduced below 0.5% of the incident intensity, if one can control the cell temperature with an accuracy better than 1 Celsius. This application relies on the use...

  • Laser etching of glass substrates by 1064 nm laser irradiation. Huang, Z.Q.; Hong, M.H.; Do, T.B.M.; Lin, Q.Y. // Applied Physics A: Materials Science & Processing;Oct2008, Vol. 93 Issue 1, p159 

    Glass substrates are transparent to 1064 nm laser irradiation and cannot be etched directly by 1064 nm pulsed laser. By placing the glass substrate in contact with copper sulphate (CuSO4) solution and irradiating 1064 nm laser light through the glass, etching of the glass is observed on the...

  • Ti:Al[sub 2]O[sub 3] laser pumped by radiation from a copper-vapor laser. Kruzhalov, S. V.; Mokrushin, Yu. M.; Parfenov, V. A. // Technical Physics Letters;Sep99, Vol. 25 Issue 9, p719 

    A scheme enabling spatial matching of copper-vapor laser radiation, which pumps a mode of an Al[sub 2]O[sub 3] :Ti laser cavity, has been developed and implemented. It is shown that copper vapor lasers as pump sources for titanium-sapphire lasers are fully capable of competing with conventional...

  • Continuous wave laser radiation at 693 nm from LiNbO[sub 3] :ZnO:Nd[sup 3+] nonlinear laser crystal. Jaque, D.; Sanz-García, J.A.; Capmany, J.; García Solé, J. // Applied Physics B: Lasers & Optics;2000, Vol. 70 Issue 4, p483 

    Abstract. Red laser radiation at 693 nm has been obtained from a LiNbO:ZnO:Nd crystal by self-frequency-doubling its fundamental laser line at 1386 nm. Pumping was achieved by means of a Ti:sapphire laser. In preliminary experiments a red laser power of 2.3 mW has been obtained for a total...

  • Seven-terawatt Ti:sapphire laser system operating at 50 Hz with high beam quality for laser Compton femtosecond X-ray generation. Ito, S.; Ishikawa, H.; Miura, T.; Takasago, K.; Endo, A.; Torizuka, K. // Applied Physics B: Lasers & Optics;2003, Vol. 76 Issue 5, p497 

    We present a 7-TW Ti:sapphire laser system operating at 50 Hz for laser Compton femtosecond X-ray generation. This laser system delivers 8.4 W of average output power at a repetition rate of 50 Hz with a pulse width of 24 fs. It demonstrates successful management using a dynamically stable...

  • High-efficiency optical compression of Ti:sapphire laser pulses at 800 nm using a silver-coated hollow fiber. Mohebbi, M.; Fedosejevs, R. // Applied Physics B: Lasers & Optics;2003, Vol. 76 Issue 4, p345 

    A 50 cm silver coated hollow fiber with inner diameter of 250 μm and filled with argon has been used to compress optical pulses from a Ti:sapphire laser at 800 nm. Input pulses with energy of 250 μJ and duration of 110 fs were used and compressed pulses with energy of 220 μJ and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics