公开(公告)号：US12282180B2

公开(公告)日：2025-04-22

申请号：US17647957

申请日：2022-01-13

Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY

Inventor： Jae Won Hahn ,  Hyeon Bo Shim ,  Ki Wook Han ,  Joo Kwon Song

IPC: G02B5/20 ,  B32B3/26 ,  B32B7/023 ,  B32B7/025 ,  F41H3/00 ,  G02B5/00

Abstract: Disclosed is a stealth device that has a double-band stealth function against millimeter-wavelength electromagnetic waves, has high absorption at a near-infrared laser wavelength, and has low emissivity of mid-infrared light and long-infrared light. The stealth device includes a wavelength-selective absorption pattern layer made of a material having electrical conductivity, wherein the wavelength-selective absorption pattern layer is composed of conductive thin-film patterns capable of causing plasmonic resonance at a first wavelength and a second wavelength different from the first wavelength; and a dielectric layer disposed below the wavelength-selective absorption pattern layer and made of a dielectric material.