具有20纳米分辨率的从可见光到中红外的吸收光谱学与成像技术。
Absorption spectroscopy and imaging from the visible through mid-infrared with 20 nm resolution.
作者信息
Katzenmeyer Aaron M, Holland Glenn, Kjoller Kevin, Centrone Andrea
机构信息
†Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States.
‡Anasys Instruments, Inc., 325 Chapala Street, Santa Barbara, California 93101, United States.
出版信息
Anal Chem. 2015 Mar 17;87(6):3154-9. doi: 10.1021/ac504672t. Epub 2015 Feb 27.
Absorption spectroscopy and mapping from visible through mid-IR wavelengths has been achieved with spatial resolution exceeding the limit imposed by diffraction via the photothermal induced resonance technique. Correlated vibrational (chemical), and electronic properties are obtained simultaneously with topography with a wavelength-independent resolution of ≈20 nm using a single laboratory-scale instrument. This marks the highest resolution reported for PTIR, as determined by comparing height and PTIR images, and its first extension to near-IR and visible wavelengths.
通过光热诱导共振技术，已经实现了从可见光到中红外波长的吸收光谱和成像，其空间分辨率超过了衍射所施加的限制。使用一台实验室规模的仪器，以≈20 nm的与波长无关的分辨率，同时获得了相关的振动（化学）和电子性质以及形貌。通过比较高度图像和光热诱导共振图像确定，这标志着光热诱导共振报道的最高分辨率，也是其首次扩展到近红外和可见光波长。
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