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نتایج جستجو برای Optical Glass

تعداد نتایج: 174630  
Journal: :Applied optics 1998
B E Gillman, S D Jacobs,

Polishing abrasives that have been bound in a solid matrix can offer several potential advantages over loose-abrasive processes with pitch or polyurethane laps for finishing of optics. These advantages include polishing efficiency, temperature stability, cost of consumables, and compatibility with computer numerically controlled generating machines. Unfortunately, little has been published on b...

2007

Optical glasses are optimized to provide excellent transmittance throughout the total visible range from 400 to 800 nm. Usually the transmittance range spreads also into the near UV and IR regions. As a general trend lowest refractive index glasses show high transmittance far down to short wavelengths in the UV. Going to higher index glasses the UV absorption edge moves closer to the visible ra...

2006

Optical glasses from SCHOTT are well-known for their very low striae content. Even in raw production formats, such as blocks or strips, requirements for the most demanding optical systems are met. Striae intensity is thickness dependent. Hence, in finished lenses or prisms with short optical path lengths, the striae effects will decrease to levels where they can be neglected completely, i.e. th...

2015
Vladimir S. Shiryaev,

*Correspondence: Vladimir S. Shiryaev , G.G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, 49 Tropinin Street, Nizhny Novgorod 603950, Russia e-mail: shiryaev@ihps.nnov.ru The recent developments on chalcogenide glass hollow-core microstructured optical fibers (HC-MOFs) are presented. The comparative analysis of simulated optical properties for c...

1997
Fidel Vega, Núria Lupón, Jesús Armengol Cebrian, Ferran Laguarta,

Fidel Vega Núria Lupón Jesús Armengol Cebrian Ferran Laguarta Universitat Politècnica de Catalunya Departament d’ Òptica I Optometria C/Violinista Vellsolà 37 08222 Terrassa, Spain E-mail: fvega@oo.upc.es Abstract. Rapid generation of large area polished optical surfaces by high-power CO2 laser irradiation is shown. Results focus on glasses with high expansion coefficients (a>1025/°C) conventio...

2016
Benn Gleason, Konstantin Kornev,

.................................................................................................................... ii DEDICATION ................................................................................................................ iv ACKNOWLEDGMENTS ............................................................................................... v LIST OF TABLES ........................

2015
Pengfei Wang, Jonathan Ward, Yong Yang, Xian Feng, Gilberto Brambilla, Gerald Farrell, Síle Nic Chormaic,

Microbubble whispering gallery resonators have the potential to become key components in a variety of active and passive photonic circuit devices by offering a range of significant functionalities. Here, we report on the fabrication, optical characterization, and theoretical analysis of lead-silicate glass, optical microbubble resonators. Evanescent field coupling to the microbubbles was achiev...

2012
Hooi Ming Oo, Halimah Mohamed-Kamari, Wan Mohd Daud Wan-Yusoff,

A series of binary tellurite based glasses (Bi(2)O(3))(x) (TeO(2))(100-) (x) was prepared by melt quenching method. The density, molar volume and refractive index increase when bismuth ions Bi(3+) increase, this is due to the increased polarization of the ions Bi(3+) and the enhanced formation of non-bridging oxygen (NBO). The Fourier transform infrared spectroscopy (FTIR) results show the bond...

2002
P. W E. Smith,

We report experimental studies of spatial optical solitons in a nonlinear glass waveguide. Spatial solitons are self-trapped beams that propagate without diffraction. We demonstrate the formation of spatial solitons, and we investigate interactions between them. At high intensities two-photon absorption is observed to lead to the breakup of solitons. A beam propagation method is used to simulat...

2009
Marie-Laure Anne, Julie Keirsse, Virginie Nazabal, Koji Hyodo, Satoru Inoue, Catherine Boussard-Plédel, Hervé Lhermite, Joël Charrier, Kiyoyuki Yanakata, Olivier Loréal, Jenny Le Person, Florent Colas, Chantal Compère, Bruno Bureau,

Due to the remarkable properties of chalcogenide (Chg) glasses, Chg optical waveguides should play a significant role in the development of optical biosensors. This paper describes the fabrication and properties of chalcogenide fibres and planar waveguides. Using optical fibre transparent in the mid-infrared spectral range we have developed a biosensor that can collect information on whole meta...