Researching | Broadband Epsilon-near-zero Metamaterials and Its Application in Optical Field Manipulation（Invited）

Acta Photonica Sinica, Volume. 51, Issue 1, 0151107(2022)

Broadband Epsilon-near-zero Metamaterials and Its Application in Optical Field Manipulation（Invited）

Lei SUN^* and Guoping WANG

Author Affiliations

Institute of Microscale Optoelectronics，Shenzhen University，Shenzhen，Guangdong 518060，China

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Figures & Tables(8)

Fig. 1. Typical microstructures of accurately determined effective permittivity

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Fig. 2. Schematic diagram of the Type I-II superlattice

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Fig. 3. Broadband ENZ metamaterial of the Type I-IV superlattice

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Fig. 4. Broadband ENZ metamaterial of the complex unit cell

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Fig. 5. Electromagnetic tunneling and focusing

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Fig. 6. Electromagnetic directional emission

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Fig. 7. Electromagnetic wavefront modulation

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Table 1. Geometric parameters of the unit cell

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Table 1. Geometric parameters of the unit cell

Unit cell	Filling ratio of Ag $p_{m}^{(i)}$	Filling ratio of air $p_{d}^{(i)}$	Filling ratio of unit cell $d_{i}$	Approximated filling ratio of unit cell $d_{i}$
$i = 1$	$0.597$	$0.403$	$0.265$	$0.3$
$i = 2$	$0.694$	$0.306$	$0.094$	$0.1$
$i = 3$	$0.791$	$0.209$	$0.110$	$0.1$
$i = 4$	$0.887$	$0.113$	$0.531$	$0.6$

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Lei SUN, Guoping WANG. Broadband Epsilon-near-zero Metamaterials and Its Application in Optical Field Manipulation（Invited）[J]. Acta Photonica Sinica, 2022, 51(1): 0151107

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Paper Information

Category: Special Issue for Light Field Manipulation and Applications

Received: Oct. 10, 2021

Accepted: Nov. 26, 2021

Published Online: Mar. 10, 2022

The Author Email: Lei SUN (lsun@szu.edu.cn)

DOI:10.3788/gzxb20225101.0151107

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology