scholarly journals Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars (PLATO) Mission

2020 ◽  
Vol 50 (1) ◽  
pp. 1-49 ◽  
Author(s):  
John Lee Grenfell ◽  
Mareike Godolt ◽  
Juan Cabrera ◽  
Ludmila Carone ◽  
Antonio Garcίa Muñoz ◽  
...  
Keyword(s):  
Color Filters ◽  
Planetary Transits

scholarly journals Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars (PLATO) Mission

2020 ◽  
Author(s):  
John Lee Grenfell ◽  
Mareike Godolt ◽  
Juan Cabrera ◽  
Ludmila Carone ◽  
Antonio Garcia Munoz ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Space Mission ◽  
Atmospheric Composition ◽  
Phase Curve ◽  
Wavelength Interval ◽  
Hot Jupiters ◽  
The Difference ◽  
In Transit ◽  
Color Filters ◽  
Planetary Transits

<p>We assess broadband color filters for the two fast cameras on the PLAnetary Transits and Oscillations (PLATO) of stars space mission with respect to exoplanetary atmospheric characterization. We focus on Ultra Hot Jupiters and Hot Jupiters placed 25pc and 100pc away from the Earth and warm Super-Earths placed 10pc and 25pc away. Our analysis takes as input literature values for the difference in transit depth between the broadband lower (500-675nm) wavelength interval (hereafter referred to as ”blue“) and the upper (675-1125nm) broadband wavelength interval (hereafter referred to as ”red“) for transmission, occultation and phase curve analyses. Planets orbiting main sequence central stars with stellar classes F, G, K and M are investigated. We calculate the signal-to-noise ratio with respect to photon and instrument noise for detecting the difference in transit depth between the two spectral intervals. Results suggest that bulk atmospheric composition and planetary geometric albedos could be detected for (Ultra) Hot Jupiters up to ~100pc (~25pc) with strong (moderate) Rayleigh extinction. Phase curve information could be extracted for Ultra Hot Jupiters orbiting K and G dwarf stars up to 25pc away. For warm Super-Earths, basic atmospheric types (primary and water-dominated) and the presence of sub-micron hazes in the upper atmosphere could be distinguished for up to a handful of cases up to ~10pc (manuscript accepted in Experimental Astronomy).</p>

Nanocomposite synthesis by thermolysis of [Ag(hfac)(COD)] in amorphous polystyrene

2012 ◽  
Vol 19 (2) ◽  
pp. 195-197 ◽  
Author(s):  
Gianfranco Carotenuto ◽  
Mariano Palomba ◽  
Luigi Nicolais
Keyword(s):  
Polymer Matrix ◽  
Nanocomposite Films ◽  
Numerical Density ◽  
Silver Particles ◽  
X Ray ◽  
Transmission Electron ◽  
Vis Spectroscopy ◽  
Yellow Coloration ◽  
Color Filters ◽  
Silver Atoms

AbstractLightfast color filters (intensively and brightly colored) can be easily produced by dying optical plastics with the surface plasmon resonance (SPR) of metal nanoparticles such as silver and gold. Here, color filters based on silver nanoparticles embedded in amorphous polystyrene have been prepared by dissolving and thermally decomposing (1,5-cyclooctadiene)(hexafluoro-acetylacetonate)silver(I) in amorphous polystyrene. The metal precursor quickly decomposes (10 s, at 180°C), leading to silver atoms that clusterize and produce a non-aggregated dispersion of silver particles in the polymer matrix. The intensity of the yellow coloration due to the SPR of nanoscopic silver can be widely tuned simply by varying the cluster numerical density in the polymer matrix that depends on the silver precursor concentration. The obtained nanocomposite films have been characterized by X-ray power diffraction, transmission electron microscopy, and UV-Vis spectroscopy.

Uniformly thick tri-color filters capitalizing on an etalon with a nanostructured cavity

2015 ◽  
Vol 54 (18) ◽  
pp. 5866 ◽  
Author(s):  
Wenjing Yue ◽  
Sang-Shin Lee ◽  
Eun-Soo Kim ◽  
Byung-Gook Lee
Keyword(s):  
Color Filters

scholarly journals Hyper-selective plasmonic color filters

2017 ◽  
Vol 25 (22) ◽  
pp. 27386 ◽  
Author(s):  
Dagny Fleischman ◽  
Luke A. Sweatlock ◽  
Hirotaka Murakami ◽  
Harry Atwater
Keyword(s):  
Color Filters

scholarly journals Plasmonic Color Filters as Dual-State Nanopixels for High-Density Microimage Encoding

2017 ◽  
Vol 27 (35) ◽  
pp. 1701866 ◽  
Author(s):  
Esmaeil Heydari ◽  
Justin R. Sperling ◽  
Steven L. Neale ◽  
Alasdair W. Clark
Keyword(s):  
High Density ◽  
Color Filters

Multi-band transmission color filters for multi-color white LEDs based visible light communication

2017 ◽  
Vol 403 ◽  
pp. 330-334 ◽  
Author(s):  
Qixia Wang ◽  
Zhendong Zhu ◽  
Huarong Gu ◽  
Mengzhu Chen ◽  
Qiaofeng Tan
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
White Leds ◽  
Color Filters ◽  
Multi Band

scholarly journals Color Filters: Plasmonic Color Filter and its Fabrication for Large-Area Applications (Advanced Optical Materials 2/2013)

2013 ◽  
Vol 1 (2) ◽  
pp. 109-109 ◽  
Author(s):  
Yun Seon Do ◽  
Jung Ho Park ◽  
Bo Yeon Hwang ◽  
Sung-Min Lee ◽  
Byeong-Kwon Ju ◽  
...  
Keyword(s):  
Optical Materials ◽  
Color Filter ◽  
Large Area ◽  
Color Filters

Pycnidium production by Botryodiplodia theobromae. I. The relation of light to the induction of pycnidia

1969 ◽  
Vol 47 (7) ◽  
pp. 1153-1156 ◽  
Author(s):  
J. A. Ekundayo ◽  
R. H. Haskins
Keyword(s):  
Light Intensity ◽  
Ultraviolet Radiation ◽  
Exposure Period ◽  
Fluorescent Light ◽  
Botryodiplodia Theobromae ◽  
Continuous Irradiation ◽  
Long Wave ◽  
Light Intensities ◽  
Glass Color ◽  
Color Filters

Cultures of Botryodiplodia theobromae Pat. produced pycnidia abundantly on several media under continuous irradiation with fluorescent light. The fungus did not sporulate when grown in darkness. Irradiation of cultures with a light intensity of 15 foot-candles for 4 days was sufficient to stimulate pycnidial production, but for appreciable sporulation to occur over the same exposure period, higher light intensities are required. Irradiation of cultures through glass color filters showed that long-wave ultraviolet radiation stimulated sporulation.

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