Planar optics at visible wavelengths based on titanium dioxide (Conference Presentation)

2017 ◽  
Author(s):  
Mohammadreza Khorasaninejad ◽  
Wei Ting Chen ◽  
Alexander Y. Zhu ◽  
Jaewon Oh ◽  
Robert C. Devlin ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Visible Wavelengths

Titanium dioxide slot waveguides for visible wavelengths

2015 ◽  
Vol 54 (10) ◽  
pp. 2653 ◽  
Author(s):  
Markus Häyrinen ◽  
Matthieu Roussey ◽  
Antti Säynätjoki ◽  
Markku Kuittinen ◽  
Seppo Honkanen
Keyword(s):  
Titanium Dioxide ◽  
Visible Wavelengths ◽  
Slot Waveguides

scholarly journals Spectral broadening in anatase titanium dioxide waveguides at telecommunication and near-visible wavelengths

2013 ◽  
Vol 21 (15) ◽  
pp. 18582 ◽  
Author(s):  
Christopher C. Evans ◽  
Katia Shtyrkova ◽  
Jonathan D. B. Bradley ◽  
Orad Reshef ◽  
Erich Ippen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Spectral Broadening ◽  
Visible Wavelengths

Slot waveguide ring resonators for visible wavelengths in ALD titanium dioxide

2015 ◽  
Author(s):  
Markus Häyrinen ◽  
Matthieu Roussey ◽  
Antti Säynätjoki ◽  
Markku Kuittinen ◽  
Seppo Honkanen
Keyword(s):  
Titanium Dioxide ◽  
Ring Resonators ◽  
Slot Waveguide ◽  
Visible Wavelengths ◽  
Waveguide Ring

Bactericidal effect of the photocatalystic reaction of titanium dioxide using visible wavelengths on Streptococcus mutans biofilm

2017 ◽  
Vol 18 ◽  
pp. 279-283 ◽  
Author(s):  
Chan-Hee Kim ◽  
Eun-Song Lee ◽  
Si-Mook Kang ◽  
Elbert de Josselin de Jong ◽  
Baek-Il Kim
Keyword(s):  
Titanium Dioxide ◽  
Streptococcus Mutans ◽  
Bactericidal Effect ◽  
Visible Wavelengths

scholarly journals High-Efficiency, Near-Diffraction Limited, Dielectric Metasurface Lenses Based on Crystalline Titanium Dioxide at Visible Wavelengths

Nanomaterials ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 288 ◽  
Author(s):  
Yaoyao Liang ◽  
Hongzhan Liu ◽  
Faqiang Wang ◽  
Hongyun Meng ◽  
Jianping Guo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
High Efficiency ◽  
Visible Wavelengths ◽  
Dielectric Metasurface

Detection and Characterization of earth-like Planets

1997 ◽  
Vol 161 ◽  
pp. 299-311 ◽  
Author(s):  
Jean Marie Mariotti ◽  
Alain Léger ◽  
Bertrand Mennesson ◽  
Marc Ollivier
Keyword(s):  
Direct Detection ◽  
Contrast Ratio ◽  
Angular Size ◽  
Physical Nature ◽  
Major Axis ◽  
Infrared Emission ◽  
Space Technology ◽  
Semi Major Axis ◽  
Earth Like Planets ◽  
Visible Wavelengths

AbstractIndirect methods of detection of exo-planets (by radial velocity, astrometry, occultations,...) have revealed recently the first cases of exo-planets, and will in the near future expand our knowledge of these systems. They will provide statistical informations on the dynamical parameters: semi-major axis, eccentricities, inclinations,... But the physical nature of these planets will remain mostly unknown. Only for the larger ones (exo-Jupiters), an estimate of the mass will be accessible. To characterize in more details Earth-like exo-planets, direct detection (i.e., direct observation of photons from the planet) is required. This is a much more challenging observational program. The exo-planets are extremely faint with respect to their star: the contrast ratio is about 10−10at visible wavelengths. Also the angular size of the apparent orbit is small, typically 0.1 second of arc. While the first point calls for observations in the infrared (where the contrast goes up to 10−7) and with a coronograph, the latter implies using an interferometer. Several space projects combining these techniques have been recently proposed. They aim at surveying a few hundreds of nearby single solar-like stars in search for Earth-like planets, and at performing a low resolution spectroscopic analysis of their infrared emission in order to reveal the presence in the atmosphere of the planet of CO H2O and O3. The latter is a good tracer of the presence of oxygen which could be, like on our Earth, released by biological activity. Although extremely ambitious, these projects could be realized using space technology either already available or in development for others missions. They could be built and launched during the first decades on the next century.

Studies on the mechanism of printing film-coated tablets containing titanium dioxide in the film by using UV laser irradiation

2009 ◽  
Vol 00 (00) ◽  
pp. 090915102728058-8
Author(s):  
Yoshiteru Kato ◽  
Yasuhiko Nakashima ◽  
Naoki Shino ◽  
Koichi Sasaki ◽  
Akihiro Hosokawa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Laser Irradiation ◽  
Uv Laser

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

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