Absorption Spectroscopy and Imaging from the Visible through Mid-Infrared with 20 nm Resolution

被引：89

作者：

Katzenmeyer, Aaron M. ^{[1
]}

Holland, Glenn ^{[1
]}

Kjoller, Kevin ^{[2
]}

Centrone, Andrea ^{[1
]}

机构：

[1] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

[2] Anasys Instruments Inc, Santa Barbara, CA 93101 USA

来源：

ANALYTICAL CHEMISTRY | 2015年 / 87卷 / 06期

关键词：

FIELD OPTICAL MICROSCOPY; INFRARED-SPECTROSCOPY; PTIR TECHNIQUE; SPATIAL-RESOLUTION; LIMIT; TIP; SCATTERING; NANOSCALE; NANOSPECTROSCOPY; NANOCRYSTALS;

D O I：

10.1021/ac504672t

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 approximate to 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.

引用

页码：3154 / 3159

页数：6

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