Výsledky vyhledávání

Akademický článek

Visual and thermal camouflage on different terrestrial environments based on electrochromism

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

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Akademický článek

Highly angle-sensitive and efficient optical metasurfaces with broken mirror symmetry

Autor: Kim Nayoung, Kim Myungjoon, Jung Joonkyo, Chang Taeyong, Jeon Suwan, Shin Jonghwa

Publikováno v: Nanophotonics, Vol 12, Iss 13, Pp 2347-2358 (2023)

Optical metasurfaces have great potential to overcome the functional limitations of conventional optical devices. In addition to polarization- or wavelength-multiplexed metasurfaces, angle-multiplexed metasurfaces can provide new degrees of freedom,

Externí odkaz: https://doaj.org/article/915adba1a6034a6aa2272dea31091876

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Daylong sub-ambient radiative cooling with full color exterior

Autor: Jeon, Suwan, Son, Soomin, Min, Seokhwan, Park, Hyunjin, Lee, Heon, Shin, Jonghwa

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

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Universal metasurfaces for complete linear control of coherent light transmission

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

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Ideal spectral emissivity design for extreme radiative cooling

Autor: Jeon, Suwan, Shin, Jonghwa

Publikováno v: Scientific Reports 10 (2020); 13038

Radiative coolers that can passively cool objects by radiating heat into the outer space have recently received much attention. However, the ultimate limits of their performance as well as their ideal spectral design are still unknown. We present the

Externí odkaz: http://arxiv.org/abs/1910.09301

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