Zobrazeno 1 - 10
of 474
pro vyhledávání: '"Kim, Dai‐Sik"'
The hotspots, which are typically found in nanogaps between metal structures, are critical for the enhancement of the electromagnetic field. Surface-enhanced Raman scattering (SERS), a technique known for its exceptional sensitivity and molecular det
Externí odkaz:
http://arxiv.org/abs/2411.03718
Autor:
Kim, Dasom, Hou, Jin, Lee, Geon, Agrawal, Ayush, Kim, Sunghwan, Zhang, Hao, Bao, Di, Baydin, Andrey, Wu, Wenjing, Tay, Fuyang, Huang, Shengxi, Chia, Elbert E. M., Kim, Dai-Sik, Seo, Minah, Mohite, Aditya D., Hagenmüller, David, Kono, Junichiro
Phonons, or vibrational quanta, are behind some of the most fundamental physical phenomena in solids, including superconductivity, Raman processes, and broken-symmetry phases. It is therefore of fundamental importance to find ways to harness phonons
Externí odkaz:
http://arxiv.org/abs/2409.04505
Autor:
Moghaddam, Mahsa Haddadi, Wang, Zhihao, Dalayoan, Daryll J. C, Park, Daehwan, Kim, Hwanhee, Im, Sunghoon, Ji, Kyungbin, Kang, Daeshik, Das, Bamadev, Kim, Dai Sik
Publikováno v:
ACS Photonics 2024 11 (8), 3239-3249
Metal thin films on soft polymers provide a unique opportunity for resistance-based strain sensors. A mechanical mismatch between the conductive film and the flexible substrate causes cracks to open and close, changing the electrical resistance as a
Externí odkaz:
http://arxiv.org/abs/2403.08288
Autor:
Yang, Hyosim, Ji, Gangseon, Choi, Min, Park, Seondo, An, Hyeonjun, Lee, Hyoung-Taek, Jeong, Joonwoo, Park, Yun Daniel, Kim, Kyungwan, Park, Noejung, Jeong, Jeeyoon, Kim, Dai-Sik, Park, Hyeong-Ryeol
Nanoconfined waters have been extensively studied within various systems, demonstrating low permittivity under static conditions; however, their dynamics have been largely unexplored due to the lack of a robust platform, particularly in the terahertz
Externí odkaz:
http://arxiv.org/abs/2310.19236
Future generation technologies demand high efficiency photodetectors to enable sensing and switching devices for ultrafast communication and machine vision. This require direct-band gap materials with high photosensitivity, high detectivity and high
Externí odkaz:
http://arxiv.org/abs/2303.15289
In this work, the influence of Au plasmonics on photocurrent generation in the visible wavelength range in integrated thiol-linked CdSe quantum dot/Au nanogap structures is demonstrated. The plasmonic absorption is sensed utilizing photoacoustic (PA)
Externí odkaz:
http://arxiv.org/abs/2210.02542
Publikováno v:
Nanophotonics, Vol 13, Iss 8, Pp 1331-1338 (2023)
Probing the time evolution of the terahertz electric field within subwavelength dimensions plays a crucial role in observing the nanoscale lightwave interactions with fundamental excitations in condensed-matter systems and in artificial structures, s
Externí odkaz:
https://doaj.org/article/a3fe85c32f354fe6b23561b5a07a85d9
Publikováno v:
Nanophotonics, Vol 13, Iss 7, Pp 1091-1097 (2023)
Bethe’s theory predicts that scattering by a small hole on a thin perfect electric conductor (PEC) is presented as radiation by an in-plane magnetic dipole of the incident magnetic field direction. Even in the near-infrared range where metals are n
Externí odkaz:
https://doaj.org/article/04ac2fd6bfc44a7caefbb252b7f8aef1
Autor:
Kim Sunghwan, Das Bamadev, Ji Kang Hyeon, Moghaddam Mahsa Haddadi, Chen Cheng, Cha Jongjin, Namgung Seon, Lee Dukhyung, Kim Dai-Sik
Publikováno v:
Nanophotonics, Vol 12, Iss 8, Pp 1481-1489 (2023)
Cracks are formed along the photolithographically pre-determined lines with extremely high yield and repeatability, when Cu clusters are introduced between planarized Au thin films sequentially deposited on a PET substrate. These clusters act as nano
Externí odkaz:
https://doaj.org/article/5dcc099869394c849a50a753482f3506
Autor:
Wang, Zhihao, Zhang, Yingde, Chen, Cheng, Piao, Hong-Guang, Ding, Linjie, Pan, Liqing, Huang, Jiaohong, Park, Hyeong-Ryoel, Kim, Dai-Sik, Yu, Seong-Cho
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 January 2023 565