高速扫描无整个带宽的中红外化学成像
Yue Zhao1,2, Shota Kusama3, Yuji Furutani4,5
1Laser Science Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya, 468-8511, Japan. zhaoyue@muroran-it.ac.jp.
Nature communications
|July 4, 2023
概括
一种新的中红外高光谱成像技术使用跳式脉冲向上转换来进行高速化学分析. 这种方法实现了详细的分子绘图,使生物和医学中的应用成为可能.
科学领域:
- 光学和光子学 在光学和光子学.
- 频谱学是一种光谱学.
- 化学成像技术 化学成像技术
背景情况:
- 中红外 (MIR) 光谱对于通过探测分子振动来识别化学物种和功能组至关重要.
- 超频谱MIR成像 (HSI) 是一种强大的光化学成像方法,但高速和全带宽的能力仍然是一个挑战.
- 现有的技术往往会损害速度或光谱范围,限制它们在动态或复杂的生物系统中的应用.
研究的目的:
- 开发一种高速的,整个带宽的中红外高光谱化学成像技术.
- 克服当前MIR HSI方法关于速度和光谱覆盖的局限性.
- 证明该技术在各种样本中进行详细化学分析的能力.
主要方法:
- 图像平面上的子周期脉冲的跳动脉冲向上转换用于MIR HSI.
- 该技术实现了15μm的侧面分辨率,可调节的视野 (800μm × 600μm到12mm × 9mm).
- 超光谱图像 (640×480像素) 在8秒内获得,光谱范围为640-3015厘米−1,波长为1069点,分辨率为2.6-3.7厘米−1.1.
主要成果:
- 开发的MIR HSI技术可实现高速成像,率为5kHz,用于离散频率成像.
- 它提供了详细的化学信息,具有高空间和光谱分辨率.
- 证明了微流体装置,植物细胞和小鼠胚胎部分中组件的成功识别和映射.
结论:
- 新的MIR高光谱化学成像技术在速度和光谱范围方面取得了重大进展.
- 它的高容量和性能使其适用于化学分析,生物学和医学中的各种应用.
- 这种技术对各种科学领域的无标签化学成像和分析具有很大的前景.
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