TY - JOUR
T1 - Optical meta-devices: Advances and applications
AU - Chen, M.-K.
AU - Chu, C.H.
AU - Lin, R.J.
AU - Chen, J.-W.
AU - Huang, Y.-T.
AU - Huang, T.-T.
AU - Kuo, H.Y.
AU - Tsai, Din-ping
PY - 2019/1/1
Y1 - 2019/1/1
N2 - © 2019 The Japan Society of Applied Physics.We report the most recent advances in optical meta-devices and their applications. The general principle and method of optical meta-devices are introduced. The development of the two most recent and state-of-the-art optical meta-devices, a broadband achromatic optical meta-lens in the visible range and a 60 × 60 achromatic meta-lens array, is shown. Full-color achromatic imaging in visible frequency (400 nm to 660 nm) is demonstrated with high efficiency (maximum 67%, average around 40%) by a GaN achromatic meta-lens. A nature-inspired 60 × 60 GaN achromatic meta-lens array with an individual meta-lens diameter of 21.65 ?m, a focal length of 49 ?m, and a numerical aperture of 0.2157 shows high-dimensional light-field image capture including the depth and velocity of the imaging objects. The total number of nano-antennas of the meta-lens array is more than 33 million which covers an area of 1.2 × 1.2 mm2. Results show the important advantages of optical meta-devices for flat optics are their small size, light weight, high efficiency, lower energy consumption, and mass producibility by semiconductor processes.
AB - © 2019 The Japan Society of Applied Physics.We report the most recent advances in optical meta-devices and their applications. The general principle and method of optical meta-devices are introduced. The development of the two most recent and state-of-the-art optical meta-devices, a broadband achromatic optical meta-lens in the visible range and a 60 × 60 achromatic meta-lens array, is shown. Full-color achromatic imaging in visible frequency (400 nm to 660 nm) is demonstrated with high efficiency (maximum 67%, average around 40%) by a GaN achromatic meta-lens. A nature-inspired 60 × 60 GaN achromatic meta-lens array with an individual meta-lens diameter of 21.65 ?m, a focal length of 49 ?m, and a numerical aperture of 0.2157 shows high-dimensional light-field image capture including the depth and velocity of the imaging objects. The total number of nano-antennas of the meta-lens array is more than 33 million which covers an area of 1.2 × 1.2 mm2. Results show the important advantages of optical meta-devices for flat optics are their small size, light weight, high efficiency, lower energy consumption, and mass producibility by semiconductor processes.
UR - http://www.scopus.com/inward/record.url?scp=85076638253&partnerID=8YFLogxK
U2 - 10.7567/1347-4065/ab2df0
DO - 10.7567/1347-4065/ab2df0
M3 - Journal article
SN - 0021-4922
VL - 58
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - SK
M1 - SK0801
ER -
