TY - JOUR
T1 - Microemitter-Based IR Spectroscopy and Imaging with Multilayer Graphene Thermal Emission
AU - Nakagawa, Kenta
AU - Shimura, Yui
AU - Fukazawa, Yusuke
AU - Nishizaki, Ryosuke
AU - Matano, Shinichiro
AU - Oya, Shuma
AU - Maki, Hideyuki
N1 - Funding Information:
We thank Prof. T. Saiki, Ms. S. Sugimoto, and Mr. R. Mogi of Keio University and Prof. K. Iwami of Tokyo University of Agriculture and Technology for their fruitful discussions and technical support. This work was partially financially supported by PRESTO (Grant Number JPMJPR152B) and A-STEP (Grant Number JPMJTR20R4) from JST, KAKENHI (Grant Numbers 16H04355, 23686055, 18K19025, and 20H02210) from JSPS, and Kanagawa Institute of Industrial Science and Technology (KISTEC). This work was technically supported by Spintronics Research Network of Japan, the Core-to-Core program from JSPS, and NIMS Nanofabrication Platform in Nanotechnology Platform Project by MEXT.
Publisher Copyright:
© 2022 American Chemical Society.
PY - 2022/4/27
Y1 - 2022/4/27
N2 - IR analyses such as Fourier transform infrared spectroscopy (FTIR) are widely used in many fields; however, the performance of FTIR is limited by the slow speed (∼10 Hz), large footprint (∼millimeter), and glass bulb structure of IR light sources. Herein, we present IR spectroscopy and imaging based on multilayer-graphene microemitters, which have distinct features: a planar structure, bright intensity, a small footprint (sub-μm2), and high modulation speed of >50 kHz. We developed an IR analysis system based on the multilayer-graphene microemitter and performed IR absorption spectroscopy. We show two-dimensional IR chemical imaging that visualizes the distribution of the chemical information. In addition, we present high-spatial-resolution IR imaging with a spatial resolution of ∼1 μm, far higher than the diffraction limit. The graphene-based IR spectroscopy and imaging can open new routes for IR applications in chemistry, material science, medicine, biology, electronics, and physics.
AB - IR analyses such as Fourier transform infrared spectroscopy (FTIR) are widely used in many fields; however, the performance of FTIR is limited by the slow speed (∼10 Hz), large footprint (∼millimeter), and glass bulb structure of IR light sources. Herein, we present IR spectroscopy and imaging based on multilayer-graphene microemitters, which have distinct features: a planar structure, bright intensity, a small footprint (sub-μm2), and high modulation speed of >50 kHz. We developed an IR analysis system based on the multilayer-graphene microemitter and performed IR absorption spectroscopy. We show two-dimensional IR chemical imaging that visualizes the distribution of the chemical information. In addition, we present high-spatial-resolution IR imaging with a spatial resolution of ∼1 μm, far higher than the diffraction limit. The graphene-based IR spectroscopy and imaging can open new routes for IR applications in chemistry, material science, medicine, biology, electronics, and physics.
KW - Diffraction limit
KW - Imaging
KW - IR spectroscopy
KW - Multilayer-graphene light emitter
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U2 - 10.1021/acs.nanolett.1c04857
DO - 10.1021/acs.nanolett.1c04857
M3 - Article
C2 - 35435683
AN - SCOPUS:85128629151
SN - 1530-6984
VL - 22
SP - 3236
EP - 3244
JO - Nano Letters
JF - Nano Letters
IS - 8
ER -