TY - JOUR
T1 - Nanoscopic Imaging of Photonic Modes Excited in Square-Shaped Perylene Microcrystals
AU - Imaeda, Keisuke
AU - Imura, Kohei
N1 - Funding Information:
This work was supported in part by JSPS KAKENHI (grant nos. 19K15511, 20H02700, 20K21179, 22K14641, and 22K19013) from the Japan Society for the Promotion of Science.
Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/3/9
Y1 - 2023/3/9
N2 - Organic microcrystals have attracted much attention because of their light confinement and transport capability on the micrometer scale. The capability is closely related to the photonic modes resonantly excited in the organic microcrystal, and therefore, visualization of photonic modes is important not only for a deeper understanding of organic microcrystals but also for their practical application. Here, we directly visualized the photonic modes excited in square-shaped perylene microcrystals by using a scanning near-field optical microscope. From the near-field optical images and the electromagnetic simulations, we demonstrate that the Fabry-Pérot modes are predominantly excited compared with the whispering gallery modes in two-dimensional organic microcrystals. The findings provide a deeper understanding of the photonic modes and should be beneficial for the design of microscale waveguides and photonic integrated circuits.
AB - Organic microcrystals have attracted much attention because of their light confinement and transport capability on the micrometer scale. The capability is closely related to the photonic modes resonantly excited in the organic microcrystal, and therefore, visualization of photonic modes is important not only for a deeper understanding of organic microcrystals but also for their practical application. Here, we directly visualized the photonic modes excited in square-shaped perylene microcrystals by using a scanning near-field optical microscope. From the near-field optical images and the electromagnetic simulations, we demonstrate that the Fabry-Pérot modes are predominantly excited compared with the whispering gallery modes in two-dimensional organic microcrystals. The findings provide a deeper understanding of the photonic modes and should be beneficial for the design of microscale waveguides and photonic integrated circuits.
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U2 - 10.1021/acs.jpcc.3c00271
DO - 10.1021/acs.jpcc.3c00271
M3 - Article
AN - SCOPUS:85149454607
SN - 1932-7447
VL - 127
SP - 4665
EP - 4671
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 9
ER -