Relation between the 1.9 eV luminescence and 4.8 eV absorption bands in high‐purity silica glass

1989 ◽  
Vol 54 (17) ◽  
pp. 1650-1652 ◽  
Author(s):  
Ryoichi Tohmon ◽  
Yasushi Shimogaichi ◽  
Shuji Munekuni ◽  
Yoshimichi Ohki ◽  
Yoshimasa Hama ◽  
...  
Keyword(s):  
High Purity ◽  
Silica Glass ◽  
Absorption Bands

Hydroxyl groups in high-purity silica glass

2000 ◽  
Vol 36 (4) ◽  
pp. 404-410 ◽  
Author(s):  
V. G. Plotnichenko ◽  
V. O. Sokolov ◽  
E. M. Dianov
Keyword(s):  
High Purity ◽  
Silica Glass ◽  
Hydroxyl Groups

Luminescence of different surface flaws in high purity silica glass under UV excitation

2011 ◽  
Author(s):  
J. Fournier ◽  
J. Néauport ◽  
P. Grua ◽  
V. Jubera ◽  
E. Fargin ◽  
...  
Keyword(s):  
High Purity ◽  
Silica Glass ◽  
Surface Flaws ◽  
Uv Excitation

Preparation of high purity, low water content fused silica glass

2001 ◽  
Vol 296 (1-2) ◽  
pp. 102-106 ◽  
Author(s):  
Minoru Tomozawa ◽  
Dong-Lae Kim ◽  
Victor Lou
Keyword(s):  
Water Content ◽  
High Purity ◽  
Silica Glass ◽  
Fused Silica ◽  
Fused Silica Glass

The Preparation of Silver Nanowires and the Study of SERS Activity of Single Nanowire

2012 ◽  
Vol 535-537 ◽  
pp. 384-387 ◽  
Author(s):  
Hai Yan Li ◽  
Mei Jie Dang ◽  
Pei Jie Wang ◽  
Yan Fang
Keyword(s):  
High Purity ◽  
Silver Nanowires ◽  
High Yield ◽  
Excitation Wavelength ◽  
Enhancement Effect ◽  
Improved Method ◽  
Absorption Bands ◽  
Single Nanowire ◽  
Surface Enhanced Raman ◽  
Longitudinal Plasma

In this report, the polyol process was used for preparing silver nanowires. In this improved method, the silver nanowires with high purity, high yield and high sensitive surface enhanced Raman scattering (SERS) activity were synthesized mainly by sealed heating. Then the samples were characterized by scanning electron microscopy (SEM). Its optical absorption properties were measured by UV-Vis spectrophotometer; furthermore, SERS spectra of R6G molecule on the single nanowire was obtained and systematically studied by excitation wavelength 532nm. Our experimental results showed that the length of nanowires by our improved method is uniform and has high yield, high purity and higher SERS enhancement effect. The UV-Vis absorption spectrum of the samples displayed the transverse and longitudinal plasma resonance (SPR) absorption bands of silver nanowires which are located at 358nm and 416nm, respectively. Also single nanowire SERS activities which are dependent on the different substrates were researched.

Exponential structural relaxation of a high purity silica glass

2008 ◽  
Vol 354 (40-41) ◽  
pp. 4685-4690 ◽  
Author(s):  
M. Tomozawa ◽  
A. Koike ◽  
S.-R. Ryu
Keyword(s):  
Structural Relaxation ◽  
High Purity ◽  
Silica Glass

The Spectroscopic Analysis of Iron-Doped Soda-Lime-Silica Glass by Spectrophotometer and ESR Spectrometer

2010 ◽  
Vol 93-94 ◽  
pp. 312-315
Author(s):  
Yotsakit Ruangtaweep ◽  
T. Kittiauchawal ◽  
Jakrapong Kaewkhao ◽  
Kheamrutai Thamaphat ◽  
Pichet Limsuwan
Keyword(s):  
Silica Glass ◽  
Spectroscopic Analysis ◽  
Soda Lime ◽  
Esr Spectra ◽  
Resonance Spectroscopy ◽  
Absorption Bands ◽  
Base Glass ◽  
Spin Resonance ◽  
Doped Glasses ◽  
Soda Lime Silica Glass

In this work, soda-lime-silica glass has been selected for coloring as base glass. The glass composition in mol% is (65-x) SiO2: 25Na2O: 10CaO: x Fe2O3, where x is 0.00, 0.02, 0.05, 0.10, 0.30, and 0.50. Optical absorption and electrons spin resonance spectroscopy were conducted for five different doping rates. The optical spectra of Fe2O3 doped glasses show three absorption bands at 380, 420 and 435 nm. These peaks correspond to Fe3+ ions. The ESR spectra of all glasses doped with Fe2O3, they show three strong ESR absorption peaks at the g = 2.0050.003, 4.2910.008 and 7.1240.008. The intensity of these peaks is increased when the Fe2O3 concentration is increased.

scholarly journals Evidence of a green luminescence band related to surface flaws in high purity silica glass

2010 ◽  
Vol 18 (21) ◽  
pp. 21557 ◽  
Author(s):  
J. Fournier ◽  
J. Néauport ◽  
P. Grua ◽  
E. Fargin ◽  
V. Jubera ◽  
...  
Keyword(s):  
High Purity ◽  
Silica Glass ◽  
Luminescence Band ◽  
Green Luminescence ◽  
Surface Flaws

Enhanced photogeneration ofE′ centers from neutral oxygen vacancies in the presence of hydrogen in high-purity silica glass

1993 ◽  
Vol 48 (5) ◽  
pp. 2968-2973 ◽  
Author(s):  
Hiroyuki Nishikawa ◽  
Ryuta Nakamura ◽  
Yoshimichi Ohki ◽  
Yoshimasa Hama
Keyword(s):  
High Purity ◽  
Silica Glass ◽  
Oxygen Vacancies
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