منابع مشابه
Subsurface Damage in Microgrinding Optical Glasses
LLE Review, Volume 73 45 In cold processing of optical glasses by microgrinding,1,2 the resulting brittle-material-removal rate induces a cracked layer near the glass surface, referred to as subsurface damage (SSD). [Editor’s note: The acronym for subsurface damage (SSD) used in this article should not be confused with its more common use as an acronym for smoothing by spectral dispersion.] In ...
متن کاملStatistical study of single and multiple pulse laser-induced damage in glasses.
Single and multiple pulse laser damage studies are performed in Suprasil silica and BK-7 borosilicate glasses. Experiments are made in the bulk of materials at 1.064microm with nanosecond pulses, using an accurate and reliable measurement system. By means of a statistical study on laser damage probabilities, we demonstrate that the same nano-precursors could be involved in the multiple shot and...
متن کاملFemtosecond fiber laser direct writing of optical waveguide in glasses
There is a great deal of interests and efforts in the area of femtosecond (fs) laser direct writing of transparent materials, which shows promise to be a powerful and flexible technique for rapid fabrication of photonic micro-device, such as gratings, waveguides and optical amplifiers. Waveguide properties depend critically on the sample material properties and writing laser characteristics. In...
متن کاملExcitation and relaxation dynamics in ultrafast laser irradiated optical glasses
We discuss the dynamics of ultrashort pulsed laser excitation in bulk optical silica-based glasses (fused silica and borosilicate BK7) well-above the permanent modification threshold. We indicate subsequent structural and thermomechanical energy relaxation paths that translate into positive and negative refractive index changes, compression and rarefaction zones. If fast electronic decay occurs...
متن کاملLaser-induced damage to large core optical fiber by high peak power laser
In this paper we present a study of laser damage to large core multimode glass optical fibers by high peak laser power of up to 175 kW. Fibers samples prepared with polymer coatings having different refractive indices were tested in a twopoint bend tester while transmitting laser light. The peak power used in the experiment clearly differentiated the performance among the samples. A polymer coa...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Association, Japan
سال: 1974
ISSN: 0009-0255,1884-2127
DOI: 10.2109/jcersj1950.82.945_278