Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Shin, Jonghwa"'
The study of optical systems with asymmetric responses has grown significantly due to their broad application potential in various fields. In particular, Janus metasurfaces are notable for their ability to control light asymmetrically at the pixel le
Externí odkaz:
http://arxiv.org/abs/2405.06318
Autor:
Park, Jagang, Lee, Kyungmin, Zhang, Ruo-Yang, Park, Hee-Chul, Ryu, Jung-Wan, Cho, Gil Young, Lee, Min Yeul, Zhang, Zhaoqing, Park, Namkyoo, Jeon, Wonju, Shin, Jonghwa, Chan, C. T., Min, Bumki
Over the last few decades, the prominent strategies for controlling spontaneous emission has been the use of resonant or space-periodic photonic structures. This approach, initially articulated by Purcell and later expanded upon by Yablonovitch in th
Externí odkaz:
http://arxiv.org/abs/2404.13287
Autor:
Park, Jagang, Park, Hee Chul, Lee, Kyungmin, Shin, Jonghwa, Ryu, Jung-Wan, Jeon, Wonju, Park, Namkyoo, Min, Bumki
Lyubarov et al. (Research Articles, 22 July 2022, p. 425) claim that the spontaneous emission rate of an atom vanishes at the momentum gap edges of photonic Floquet media. We show that their theoretical prediction is based on assumptions that result
Externí odkaz:
http://arxiv.org/abs/2211.14832
Autor:
Park, Sanghyeok, Kim, Dongha, Choi, Yun-Seok, Baucour, Arthur, Kim, Donghyeong, Yoon, Sangho, Watanabe, Kenji, Taniguchi, Takashi, Shin, Jonghwa, Kim, Jonghwan, Seo, Min-Kyo
Embodying bosonic and electrically interactive characteristics in two-dimensional space, excitons in transition-metal dichalcogenides (TMDCs) have garnered considerable attention. The realisation and application of strong-correlation effects, long-ra
Externí odkaz:
http://arxiv.org/abs/2208.04671
Autor:
Cho Mingwan, Jung Joonkyo, Kim Myungjoon, Lee Jeong Yub, Min Seokhwan, Hong Jongwoo, Lee Shinho, Heo Minsung, Kim Jong Uk, Joe In-Sung, Shin Jonghwa
Publikováno v:
Nanophotonics, Vol 13, Iss 16, Pp 2971-2982 (2024)
Silicon is the dominant material in complementary metal-oxide-semiconductor (CMOS) imaging devices because of its outstanding electrical and optical properties, well-established fabrication methods, and abundance in nature. However, with the ongoing
Externí odkaz:
https://doaj.org/article/edabe9879e7e4b83a907da1b057fcdf4
Terrestrial radiative cooling is an intriguing way to mitigate the accelerating cooling demands in the residential and commercial sectors by offering zero-energy cooling. However, the ultra-white or mirror-like appearance of radiative coolers can be
Externí odkaz:
http://arxiv.org/abs/2202.07129
Optical vortices host the orbital nature of photons, which offers an extra degree of freedom in photonic applications. Unlike vortices in other physical entities, optical vortices require structural singularities, which restrict their abilities in te
Externí odkaz:
http://arxiv.org/abs/2202.02335
Publikováno v:
Nanophotonics, Vol 13, Iss 8, Pp 1467-1474 (2024)
Proximity-field nanopatterning (PnP) have been used recently as a rapid, cost-effective, and large-scale fabrication method utilizing volumetric interference patterns generated by conformal phase masks. Despite the effectiveness of PnP processes, the
Externí odkaz:
https://doaj.org/article/0f22cd2138c540b5a0e6e5764aab3816
Autor:
Chang, Taeyong, Jung, Joonkyo, Nam, Sang-Hyeon, Kim, Hyeonhee, Kim, Jong Uk, Kim, Nayoung, Jeon, Suwan, Heo, Minsung, Shin, Jonghwa
Recent advances in metasurfaces and optical nanostructures have enabled complex control of incident light with optically thin devices. However, it has thus far been unclear whether it is possible to achieve complete linear control of coherent light t
Externí odkaz:
http://arxiv.org/abs/2201.01579
Autor:
Jeon Suwan, Lee Su Eon, Kim Wonjoong, Lee Sun Hee, Min Seokhwan, Seon Seung Won, Han Seung Ho, Kim Bong Hoon, Lee Heon, Shin Jonghwa
Publikováno v:
Nanophotonics, Vol 12, Iss 15, Pp 3199-3209 (2023)
Hiding terrestrial objects from aerial monitoring has long been an important objective in national security and public safety. However, the diversity of terrestrial environments raises great challenges to traditional camouflages optimized for a singl
Externí odkaz:
https://doaj.org/article/dd857388f2c64a15bde3c35366de3b3e