TY - JOUR
T1 - Nanoscale imaging by cylindrical microstructure-assisted microscopy
AU - Sano, Taichi
AU - Tobe, Keito
AU - Tsuji, Akihiro
AU - Kosumsupamala, Kunpisit
AU - Puttaraksa, Nitipon
AU - Seki, Hironori
AU - Ishii, Yasuyuki
AU - Matsui, Tatsunosuke
AU - Nishikawa, Hiroyuki
N1 - Publisher Copyright:
© 2025 The Japan Society of Applied Physics. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
PY - 2025/3/1
Y1 - 2025/3/1
N2 - Conventional optical microscopes have a limit in resolution by a diffraction of light. Here, we propose cylindrical microstructures to assist in resolving nanoscale imaging. The cylindrical microstructures with diameters of 3, 5, 7, and 9 μm were produced by proton beam writing in poly(methyl methacrylate) on nanopatterns of commercial Blu-ray discs. Accordingly, the Blu-ray disc nanopatterns were imaged through cylindrical microstructures using a laser confocal microscope to determine the cylindrical microstructure performances for assisting in nanoimaging. The results showed that the smaller diameter performed better quality of imaging (i.e., contrast and sharp edge) for an objective lens of 20× with a numerical aperture of 0.6. The quality of the imaging was improved with a higher magnification.
AB - Conventional optical microscopes have a limit in resolution by a diffraction of light. Here, we propose cylindrical microstructures to assist in resolving nanoscale imaging. The cylindrical microstructures with diameters of 3, 5, 7, and 9 μm were produced by proton beam writing in poly(methyl methacrylate) on nanopatterns of commercial Blu-ray discs. Accordingly, the Blu-ray disc nanopatterns were imaged through cylindrical microstructures using a laser confocal microscope to determine the cylindrical microstructure performances for assisting in nanoimaging. The results showed that the smaller diameter performed better quality of imaging (i.e., contrast and sharp edge) for an objective lens of 20× with a numerical aperture of 0.6. The quality of the imaging was improved with a higher magnification.
KW - microscopy
KW - nano-imaging
KW - photonic nanojet
KW - proton beam writing
UR - https://www.scopus.com/pages/publications/105000295082
UR - https://www.scopus.com/pages/publications/105000295082#tab=citedBy
U2 - 10.35848/1347-4065/adba6a
DO - 10.35848/1347-4065/adba6a
M3 - Article
AN - SCOPUS:105000295082
SN - 0021-4922
VL - 64
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
IS - 3
M1 - 03SP44
ER -