نتایج جستجو برای: infrared absorption
تعداد نتایج: 226927 فیلتر نتایج به سال:
We design a soft infrared metamaterial absorber based on gold nanorods dispersed in liquid crystal (LC) placed on a gold film and theoretically investigate its total absorption character. Because the nanorods align with the LC molecule, the gold nanorods/LC hybrid exhibits different permittivity as a function of tilt angle of LC. At a certain tilt angle, the absorber shows an omnidirectional to...
dyes such as indocyanine green (ICG), indigo carmine, and methylene blue are commonly used during various surgical procedures. The intraoperative administration of intravenous dyes can result in misreadings of the actual values measured by optical technology-based patient monitors (i.e., cerebral oximeters and pulse oximeters) because they interfere with the amount of the specific infrared or r...
Recently, gas sensing is performed in various fields such as environmental protection, industrial process, agricultural analysis, medical care, and security and safety. In these fields, portable gas sensing apparatuses that enable high-sensitive, real-time, and/or on-site measurements are required. Figure 1 shows the correlation between the detection sensitivity and measurement time of existing...
New layered anisotropic infrared semiconductors, black arsenic-phosphorus (b-AsP), with highly tunable chemical compositions and electronic and optical properties are introduced. Transport and infrared absorption studies demonstrate the semiconducting nature of b-AsP with tunable band gaps, ranging from 0.3 to 0.15 eV. These band gaps fall into long-wavelength infrared regime and cannot be read...
Laboratory absorption spectra of peroxyacetyl nitrate (PAN, CH3C(O)OONO2) vapour have been measured in the mid-infrared range 550 cm−1 to 1400 cm−1 (18.2 to 7.14μm) at both 250 K and 273 K, using a Fourier transform infrared spectrometer at a nominal spectral resolution of 0.25 cm−1 (unapodised). In addition, the 1600 cm−1 to 2200 cm−1 (6.25 to 4.54μm) spectral region has been measured at 250 K...
The ability to detect light over a broad spectral range is central to several technological applications in imaging, sensing, spectroscopy and communication. Graphene is a promising candidate material for ultra-broadband photodetectors, as its absorption spectrum covers the entire ultraviolet to far-infrared range. However, the responsivity of graphene-based photodetectors has so far been limit...
Recent investigations give an optimistic view that infrared absorption spectra can be very useful in the rapid identification and differentiation of microorganisms. However, it is admitted that such identifications will have to be based on very small differences, often not much above the reproducibility with which the spectra can be measured. Blout and Lenormant (1953) compared the spectra of L...
Remote sensing technology is widely used in environmental and agricultural research, and nowadays it has become a valuable and reliable source of information for the management of crop production and assessment of global supply and demands for these products. The objective of this study was to investigate the feasibility of using MODIS data and vegetation indices based on sugar beet growth moni...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید