Takumi Sannomiya
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Explore the profile of Takumi Sannomiya including associated specialties, affiliations and a list of published articles.
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Articles
58
Citations
273
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Recent Articles
1.
Yasuhara A, Hosokawa F, Asaoka S, Akiyama T, Iyoda T, Nakayama C, et al.
Ultramicroscopy
. 2025 Jan;
270:114103.
PMID: 39827735
Scanning transmission electron microscopy (STEM) provides high-resolution visualization of atomic structures as well as various functional imaging modes utilizing phase contrasts. In this study we introduce a semicircular aperture in...
2.
Kitano T, Goto S, Wang X, Kamihara T, Sei Y, Kondo Y, et al.
Nat Commun
. 2025 Jan;
16(1):280.
PMID: 39747237
Covalently bonded crystalline substances with micropores have broad applications. Covalent organic frameworks (COFs) are representative of such substances. They have so far been classified into two-dimensional (2D) and three-dimensional (3D)...
3.
Vu D, Matthaiakakis N, Saito H, Sannomiya T
Nanophotonics
. 2024 Dec;
11(9):2129-2137.
PMID: 39633920
Two-dimensional (2D) transition metal dichalcogenides (TMDCs), possessing unique exciton luminescence properties, have attracted significant attention for use in optical and electrical devices. TMDCs are also high refractive index materials that...
4.
Ogura S, Negoro H, Machfuudzoh I, Thollar Z, Hinamoto T, de Abajo F, et al.
ACS Photonics
. 2024 Aug;
11(8):3323-3330.
PMID: 39184185
Control of circularly polarized light (CPL) is important for next-generation optical communications as well as for investigating the optical properties of materials. In this study, we explore dielectric-sphere oligomers for...
5.
Yasuhara A, Shibata M, Yamamoto W, Machfuudzoh I, Yanagimoto S, Sannomiya T
Microscopy (Oxf)
. 2024 May;
73(6):473-480.
PMID: 38702889
We investigate a one-dimensional plasmonic crystal using momentum-resolved electron energy-loss spectroscopy (EELS) and cathodoluminescence (CL) techniques, which are complementary in terms of available optical information. The plasmonic crystal sample is...
6.
Nekita S, Yanagimoto S, Sannomiya T, Akiba K, Takiguchi M, Sumikura H, et al.
Nano Lett
. 2024 Mar;
24(13):3971-3977.
PMID: 38501652
Time-resolved or time-correlation measurements using cathodoluminescence (CL) reveal the electronic and optical properties of semiconductors, such as their carrier lifetimes, at the nanoscale. However, halide perovskites, which are promising optoelectronic...
7.
Sannomiya T, Matsukata T, Yamamoto N
Nano Lett
. 2024 Jan;
24(3):929-934.
PMID: 38173237
Control of the angular momentum of light is a key technology for next-generation nano-optical devices and optical communications, including quantum communication and encoding. We propose an approach to controllably generate...
8.
Naito H, Makino Y, Zhang W, Ogawa T, Endo T, Sannomiya T, et al.
Nanoscale Adv
. 2023 Sep;
5(18):5115-5121.
PMID: 37705802
van der Waals (vdW) layered materials have attracted much attention because their physical properties can be controlled by varying the twist angle and layer composition. However, such twisted vdW assemblies...
9.
Adachi Y, Yamamoto N, Sannomiya T
Ultramicroscopy
. 2023 May;
251:113759.
PMID: 37245285
We developed a novel light optics system installed in a scanning transmission electron microscope (STEM) to introduce a focused light accurately adjusted at the electron beam irradiation position using a...
10.
Machfuudzoh I, Hinamoto T, de Abajo F, Sugimoto H, Fujii M, Sannomiya T
ACS Photonics
. 2023 May;
10(5):1434-1445.
PMID: 37215315
A spherical dielectric particle can sustain the so-called whispering-gallery modes (WGMs), which can be regarded as circulating electromagnetic waves, resulting in the spatial confinement of light inside the particle. Despite...