scholarly journals Mid-infrared cylindrical vector beams enabled by dielectric metasurfaces

APL Materials ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 121113
Author(s):  
Anastasia Zalogina ◽  
Luyao Wang ◽  
Elizaveta Melik-Gaykazyan ◽  
Yuri Kivshar ◽  
Ilya Shadrivov ◽  
...  
Keyword(s):  
Mid Infrared ◽  
Vector Beams

Characteristics of vector beams in mid-infrared waveband in an As2Se3 photonic crystal fiber with small hollow core

2020 ◽  
Vol 55 ◽  
pp. 102152
Author(s):  
Weiqing Gao ◽  
Xiu Zhang ◽  
Wenhui Jiang ◽  
Zhengxiong Zhang ◽  
Panyun Gao ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Hollow Core ◽  
Mid Infrared ◽  
Crystal Fiber ◽  
Vector Beams

Dark modes in symmetric bulk Dirac semimetal dimers excited by cylindrical vector beams

2021 ◽  
Author(s):  
Lian-Gang Zhang ◽  
Rui Ma ◽  
Tian-Qi Long ◽  
Guidong Liu ◽  
Ling-Ling Wang ◽  
...  
Keyword(s):  
Fluorescence Enhancement ◽  
Resonance Peak ◽  
Mid Infrared ◽  
Direct Excitation ◽  
Dirac Semimetal ◽  
Plasmonic Sensing ◽  
Vector Beams ◽  
Infrared Spectral ◽  
Radially Polarized ◽  
Spectral Responses

Abstract Dark plasmonic modes with sharp spectral resonance peak and exceptionally high quality factor makes it essential for applications in bio-chemical sensing and fluorescence enhancement. Here, we investigate the mid-infrared spectral responses of bulk Dirac semimetal (BDS) dimers under focused azimuthally polarized and radially polarized cylindrical vector beams (CVB). Through numerical simulations, we obtained direct excitation of dark modes and revealed how the beams manipulate the dipole hybridization to produce these modes. By tuning Fermi energy of BDS, the resonant wavelength of the dark modes can be further adjusted. Our results may find the application of CVB in plasmonic sensing.

AMICA: the Antarctic Mid-Infrared CAmera for the IRAIT telescope

2005 ◽  
Vol 14 ◽  
pp. 337-342 ◽  
Author(s):  
M. Dolci ◽  
G. Valentini ◽  
O. Straniero ◽  
G. Di Rico ◽  
M. Ragni ◽  
...  
Keyword(s):  
Infrared Camera ◽  
Mid Infrared ◽  
The Antarctic

MID-INFRARED BROADBAND ABSORPTION BASED ON HBN/METAL HETEROSTRUCTURES

2018 ◽  
Author(s):  
Y. H. Kan ◽  
Changying Zhao ◽  
Zhuomin M. Zhang
Keyword(s):  
Mid Infrared ◽  
Broadband Absorption

Milk acetone determination by the photometrical method after microdiffusion and via FT infra-red spectroscopy

2011 ◽  
Vol 28 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Oto Hanuš ◽  
Václava Genčurová ◽  
Yunhai Zhang ◽  
Pavel Hering ◽  
Jaroslav Kopecký ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Indirect Method ◽  
Geometric Mean ◽  
Mid Infrared ◽  
Subclinical Ketosis ◽  
Infra Red ◽  
Variation Range ◽  
Ft Ir ◽  
Infrared Method ◽  
Photometrical Method

Milk acetone determination by the photometrical method after microdiffusion and via FT infra-red spectroscopyMilk acetone (AC) and betahydroxybutyrate (BHB) are important indicators of the energy metabolism of cows (ketosis occurrence) and an effective method for their determination, with reliable results, is of great importance. The goal of this work was to investigate the infrared method MIR-FT in terms of its calibration for milk AC and to develop a usable procedure. The microdiffusion photometric (485 nm; Spekol 11) method was used with salicylaldehyde as a reference (Re) and mid infrared spectroscopy FT (MIR-FT: Lactoscope FT-IR, Delta; MilkoScan FT 6000, M-Sc) as an indirect method. The acetone addition to milk had no recovery using MIR-FT (Delta). The reference AC set must have acceptable statistics for good MIR-FT calibration (M-Sc) and they were: 10.1 ± 9.74 at a geometric mean of 7.26 mg l-1, and a variation range from 1.98 to 33.66 mg l-1. The AC correlation between Re and MIR-FT (Delta) was low at 0.32 (P>0.05 but the Log AC relationship between Re and MIR-FT (M-Sc) was markedly better at 0.80 (P<0.01). The conversion of >10 mg l-1 as an AC subclinical ketosis limit could be > -0.80 (feedback 0.158 mmol l-1 = 9.25 mg l-1) and > -1.66. This could be important for ketosis monitoring (using M-Sc).

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