The infrared spectrum is the wavelength range from 3,000 nm to 10,000 nm whereas the near-infrared spectrum is the range from 800 – 2500 nm. Since the energy carried by light (photons) is inversely proportional to the wavelength, IR light has low energy due to its long wavelengths. For...
The invention discloses a near infrared spectrum (NIR) dual field interference imaging device for rapid interface chromatographic imaging in a retinal cell layer, which is characterized in that a wide-narrow dual field imaging system is introduced, the subgraph of a narrow field provides ...
Within the near-infrared spectrum, light can penetrate biological tissues and be absorbed by chromophores, such as oxyhemoglobin and deoxyhemoglobin. What makes fNIRS more advantageous is its portability and potential for long-term monitoring. These investigators reviewed the basic mechanisms of fNIRS ...
近红外光谱技术(英文)Near infra-red (NIR) spectroscopy Nearinfra-red(NIR)spectroscopy Content •Spectroscopy•Instrumentation•Application ••• WhatisNIR?HowtogetNIR?WhatisNIRapplication?NIRFundamentals:ElectromagneticSpectrum 12,500cm-1(800nm)4,000cm-1(2500nm)108Frequency(cm-1)107 106 105 ...
Miniature Near-Infrared (NIR) Spectrometer Engine For Handheld Applications Nada A. O’Brien* a , Charles A. Hulse a , Donald M. Friedrich a , Fred J. Van Milligen a , Marc K. von Gunten a , Frank Pfeifer b , Heinz W. Siesler** ...
InfraredSpectroscopy RegionsofInfraredSpectrum: FarInfrared:650–25cm-1 MidInfrared:4000–650cm-1 NearInfrared:12800–4000cm-1(0.8-2.5m,or800-2500nm) Avibrationoccurswhenthedipolemomentofthemoleculechanges,andthemoleculeinteractswithradiationequaltothefrequencyofvibration. ...
Known as the “super eye,” the NIRSpec instrument is a multi-object spectrograph capable of simultaneously measuring the near infrared spectrum of at least 100 objects – such as stars and galaxies – with various spectral resolutions down to 0.3 nanometres. The observations are performed over ...
Near Infrared (NIR) Spectroscopy is an analytical technique used across a wide range of sectors and industries. Click to read more...
所开发的食品专用检测仪器简介 NIR仪器简介近红外光谱在食品、药品工业中的应用实例 Part 1近红外光谱技术基础 近红外光谱区域 电磁波谱 RadioMediumShortLongUVCosmicGammaXIRMicroUHF Ultraviolet Vis Near Infrared MidFar 1 400 750 2500 16000 1000000 nm •TheNIRspectrumextendsfrom≈760nm–2500nm.
[近红外二区, Near-infrared-Ⅱ(NIR-Ⅱ)]为人们所熟知[17]. 相较于可见光区和NIR-Ⅰ, 其波长进一步增加, 显著抑制了生物组织对于光子的散射效应, 且生物组织的自身荧光几乎可以忽略不计[18]. 在此窗口进行荧光成像具有前所未有的组织穿透深度(3 cm)和时空分辨率[19], 在临床应用上比NIR-Ⅰ更有优势[20,...