Design and fabrication of diffraction grating for application in hyperspectral imaging for the long-wavelength infrared spectral region

2015 ◽  
Author(s):  
Petr Vojtíšek ◽  
Martin Possolt ◽  
Roman Doleček ◽  
Kateřina Steiger ◽  
Pavel Pintr ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Spectral Region ◽  
Diffraction Grating ◽  
Long Wavelength ◽  
Infrared Spectral Region ◽  
Infrared Spectral ◽  
Long Wavelength Infrared

scholarly journals Spatial and Frequency Selective Plasmonic Metasurface for Long Wavelength Infrared Spectral Region

2018 ◽  
Vol 6 (20) ◽  
pp. 1800337 ◽  
Author(s):  
Xiaohang Pan ◽  
Hao Xu ◽  
Yanqing Gao ◽  
Yafeng Zhang ◽  
Liaoxin Sun ◽  
...  
Keyword(s):  
Spectral Region ◽  
Long Wavelength ◽  
Infrared Spectral Region ◽  
Infrared Spectral ◽  
Frequency Selective ◽  
Long Wavelength Infrared

Behavior of the Reststrahlen Band in the 17–25 μm Spectral Region in the Diffuse Reflection Spectra of Sand and Silt Mixtures

2020 ◽  
Vol 74 (3) ◽  
pp. 334-339
Author(s):  
Kenneth J. Ewing ◽  
Kevin J. Major ◽  
Jasbinder Sanghera ◽  
Raju V. Kala ◽  
Stacy E. Howington ◽  
...  
Keyword(s):  
Spectral Region ◽  
Diffuse Reflection ◽  
Reflectance Spectrum ◽  
Reflectance Spectra ◽  
Reflection Spectra ◽  
Long Wavelength ◽  
Infrared Spectral Region ◽  
Weathered Soil ◽  
Infrared Spectral ◽  
Long Wavelength Infrared

Studies on the reflectance spectra of different mixtures of sand and silt were performed in the infrared spectral region of 7–25 µm to explore the behavior of a second reststrahlen band occurring between 17 and 25 µm with respect to different mixtures of sand and silt. The reflectance spectrum of all samples exhibited reststrahlen bands within both the long wavelength infrared (LWIR) and the very long wavelength infrared (VLWIR) regions of the reflectance spectrum. Results demonstrate that both LWIR and VLWIR reststrahlen bands increase in area as the fraction of sand increases to 80%. More importantly, the data demonstrate that the VLWIR reststrahlen band, like that in LWIR, exhibits a significant and reproducible decrease in reflectivity for mixed soil versus weathered soil.

scholarly journals Surface Plasmon Resonances in Sn: In2O3 Thin Films with Diffraction Grating

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1034
Author(s):  
Noriyuki Hasuike ◽  
Saito Ochiai ◽  
Ryotaro Iwakiri ◽  
Minoru Takeda ◽  
Woo Sik Yoo ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Spectral Region ◽  
Diffraction Grating ◽  
Near Infrared ◽  
Transparent Conductive Oxide ◽  
Infrared Region ◽  
Reflection Spectra ◽  
Surface Plasmon Resonances ◽  
Infrared Spectral Region ◽  
Infrared Spectral

We newly proposed transparent conductive oxide with diffraction grating structure as an excitation field of surface plasmon resonance working at near-infrared spectral region. We experimentally demonstrated the excitation of SPR using Sn-doped In2O3 films with micro-meter pitched diffraction grating. In this study, we considered the correlation between the grating pitch and the optical reflection spectra. Reflection spectra showed clear polarization properties in infrared spectral region, and the reflection edge has also correlation with the pitch of grating. From these results, the excitation of SPR grating was successfully demonstrated and the wavelength can be tuned by changing the grating pitch in infrared region.

Absorption of Optical Microcavity in the Infrared Spectral Region

2014 ◽  
Vol 60 (1) ◽  
pp. 1127-1132
Author(s):  
Y. Lv ◽  
W. Jiang ◽  
W. Ou ◽  
T. Chen
Keyword(s):  
Spectral Region ◽  
Optical Microcavity ◽  
Infrared Spectral Region ◽  
Infrared Spectral

Layer-by-Layer Copper Photonic Crystals for Near Infrared Spectral Region

2019 ◽  
Vol 28 (7) ◽  
pp. 9-16
Author(s):  
Shich-Chuan Wu ◽  
Yu-Lin Yang ◽  
Wen-Hsien Huang ◽  
Yang-Tung Huang
Keyword(s):  
Photonic Crystals ◽  
Spectral Region ◽  
Near Infrared ◽  
Layer By Layer ◽  
Infrared Spectral Region ◽  
Infrared Spectral
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