Forming of a Beam with a Uniform Intensity Distribution in the Active Resonator of Waveguide CO2-Laser

2008 ◽  
Vol 67 (4) ◽  
pp. 343-351
Author(s):  
V. A. Svich ◽  
A. N. Topkov ◽  
V. A. Maslov ◽  
O. V. Gurin
Keyword(s):  
Co2 Laser ◽  
Intensity Distribution ◽  
Active Resonator

Structure images of Si, Ge and Mos2 crystals and some application to radiation damage studies

1978 ◽  
Vol 36 (1) ◽  
pp. 292-293 ◽  
Author(s):  
K. Izui ◽  
T. Nishida ◽  
S. Furuno ◽  
H. Otsu ◽  
S. Kuwabara
Keyword(s):  
Radiation Damage ◽  
Exposure Time ◽  
Gaussian Distribution ◽  
Intensity Distribution ◽  
Chromatic Aberration ◽  
Magnetic Lens

Recently we have observed the structure images of silicon in the (110), (111) and (100) projection respectively, and then examined the optimum defocus and thickness ranges for the formation of such images on the basis of calculations of image contrasts using the n-slice theory. The present paper reports the effects of a chromatic aberration and a slight misorientation on the images, and also presents some applications of structure images of Si, Ge and MoS2 to the radiation damage studies.(1) Effect of a chromatic aberration and slight misorientation: There is an inevitable fluctuation in the amount of defocus due to a chromatic aberration originating from the fluctuations both in the energies of electrons and in the magnetic lens current. The actual image is a results of superposition of those fluctuated images during the exposure time. Assuming the Gaussian distribution for defocus, Δf around the optimum defocus value Δf0, the intensity distribution, I(x,y) in the image formed by this fluctuation is given by

Transoral Resection of Cancer of the Oral Cavity: The Role of the CO2 Laser

1979 ◽  
Vol 12 (1) ◽  
pp. 207-218 ◽  
Author(s):  
M. Stuart Strong ◽  
Charles W. Vaughan ◽  
Geza J. Jako ◽  
Thomas Polanyi
Keyword(s):  
Oral Cavity ◽  
Co2 Laser ◽  
Transoral Resection

Conservatism Aids CO2 Laser Success in Dark Skin

2007 ◽  
Vol 38 (2) ◽  
pp. 24
Author(s):  
SHARON WORCESTER
Keyword(s):  
Co2 Laser ◽  
Dark Skin

CO2 Laser Offers Long-Term Efficacy

2008 ◽  
Vol 39 (9) ◽  
pp. 31
Author(s):  
ROBIN TURNER
Keyword(s):  
Co2 Laser ◽  
Term Efficacy

A. C. Stark effect on the 4713 Å line emitted by a helium glow discharge in the field of a multimode T.E.A. CO2 laser

1982 ◽  
Vol 43 (6) ◽  
pp. 875-881 ◽  
Author(s):  
B. Dubreuil ◽  
P. Pignolet ◽  
A. Catherinot ◽  
P. Davy
Keyword(s):  
Glow Discharge ◽  
Co2 Laser ◽  
Stark Effect

CO2-LASER PRODUCED CHANNELS FOR GUIDING LONG SPARKS IN AIR

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-419-C7-420 ◽  
Author(s):  
D. Koopman ◽  
J. Greig ◽  
R. Pechacek ◽  
A. Ali ◽  
I. Vitkovitsky ◽  
...  
Keyword(s):  
Co2 Laser
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