Near-infrared intersubband absorption in (CdS/ZnSe)/BeTe type-II super-lattices grown on GaAs substrate by MBE

2006 ◽  
Vol 34 (1-2) ◽  
pp. 276-279 ◽  
Author(s):  
B.S. Li ◽  
R. Akimoto ◽  
K. Akita ◽  
T. Hasama
Keyword(s):  
Gaas Substrate ◽  
Near Infrared ◽  
Type Ii ◽  
Intersubband Absorption

Demonstration of midinfrared type-II InAs/GaSb superlattice photodiodes grown on GaAs substrate

2009 ◽  
Vol 94 (22) ◽  
pp. 223506 ◽  
Author(s):  
Binh-Minh Nguyen ◽  
Darin Hoffman ◽  
Edward Kwei-wei Huang ◽  
Simeon Bogdanov ◽  
Pierre-Yves Delaunay ◽  
...  
Keyword(s):  
Gaas Substrate ◽  
Type Ii

scholarly journals Real Nano “Light Vaccine” Will Benefit to COVID-19 Pandemic Control

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jianshe Yang
Keyword(s):  
Near Infrared ◽  
Chemical Nature ◽  
Strong Acid ◽  
Alveolar Type ◽  
Type Ii ◽  
Nir Light ◽  
Physical Absorption ◽  
Acid And Base ◽  
And Control ◽  
Physical And Chemical

AbstractThis highlight presents a recent technique of “Light Vaccine” for COVID-19 pandemic control. Though this technique has the germicidal advantage to SARS-CoV-2, its shortcomings will limit the wide and in-depth application. We make a perspective of real nano light vaccine, which will play an important role in the prevention and control of COVID-19. Briefly, This flow chart described the MWCNT was fabricated with strong acid and base conditional mixture in order to achieve the p-WCNT (chemical process); then modified with RNA layse and receptor binding domain (RBD) by covalent conjugation and physical absorption to get f-WCNT (functionalization); thereafter, f-WCNT was used in the multi-cell culture system interacting with SARS-CoV-2 to identify the special affinity of f-WCNT to ACE2 labeled alveolar type II cells and the inhibition capacity to SARS-CoV-2. This design, is different from the so called “light vaccine”, has the real function to against SARS-CoV-2 by local cellular temperature-rising through photothermal conversion under the near infrared (NIR) light irradiation, according to the physical and chemical nature of carbon nanotubes, and initiates the immune response consequently.

Type-II superlattice photodetector on a compliant GaAs substrate

2000 ◽  
Vol 12 (6) ◽  
pp. 684-686 ◽  
Author(s):  
G.J. Brown ◽  
F. Szmulowicz ◽  
R. Linville ◽  
A. Saxler ◽  
K. Mahalingham ◽  
...  
Keyword(s):  
Gaas Substrate ◽  
Type Ii ◽  
Type Ii Superlattice

scholarly journals Luminous Type II supernovae for their low expansion velocities

2020 ◽  
Vol 494 (4) ◽  
pp. 5882-5901 ◽  
Author(s):  
Ó Rodríguez ◽  
G Pignata ◽  
J P Anderson ◽  
T J Moriya ◽  
A Clocchiatti ◽  
...  
Keyword(s):  
Near Infrared ◽  
Current Data ◽  
Type Ii ◽  
Data Set ◽  
Circumstellar Material ◽  
V Band ◽  
Dominant Component ◽  
Absolute Magnitudes ◽  
Using Data ◽  
Early Interaction

ABSTRACT We present optical and near-infrared data of three Type II supernovae (SNe II), SN 2008bm, SN 2009aj, and SN 2009au. These SNe display the following common characteristics: signs of early interaction of the ejecta with circumstellar material (CSM), blue B − V colours, weakness of metal lines, low expansion velocities, and V-band absolute magnitudes 2–3 mag brighter than those expected for normal SNe II based on their expansion velocities. Two more SNe reported in the literature (SN 1983K and LSQ13fn) share properties similar to our sample. Analysing this set of five SNe II, which are luminous for their low expansion velocities (LLEV), we find that their properties can be reproduced assuming ejecta–CSM interaction that lasts between 4 and 11 weeks post-explosion. The contribution of this interaction to the radiation field seems to be the dominant component determining the observed weakness of metal lines in the spectra rather than the progenitor metallicity. Based on hydrodynamic simulations, we find that the interaction of the ejecta with a CSM of ∼3.6 M⊙ can reproduce the light curves and expansion velocities of SN 2009aj. Using data collected by the Chilean Automatic Supernova Search, we estimate an upper limit for the LLEV SNe II fraction to be 2–4 per cent of all normal SNe II. With the current data set, it is not clear whether the LLEV events are a separated class of SNe II with a different progenitor system, or whether they are the extreme of a continuum mediated by CSM interaction with the rest of the normal SN II population.

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