ORCID Profile
0000-0002-8649-7884
Current Organisation
Nanyang Technological University
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: AIP Publishing
Date: 29-09-2014
DOI: 10.1063/1.4896972
Abstract: We develop a method for realizing coherent perfect absorption in thin metamaterial systems, based on the coupled-mode theory of Fano resonance. Coherent perfect absorption refers to the complete absorption of symmetric plane waves incident on opposite sides of the system, due to critical coupling into the dissipative degrees of freedom. Using the reflection and transmission spectra measured on a limited number of s les, our theory predicts the precise frequency and metamaterial parameter values required to achieve coherent perfect absorption. The coupled-mode theory and the design method are found to agree well with full-wave numerical simulations of a subwavelength-thickness metamaterial surface with a pair of bright and dark plasmonic modes.
Publisher: American Physical Society (APS)
Date: 23-01-2017
Publisher: The Optical Society
Date: 25-01-2018
DOI: 10.1364/PRJ.6.000117
Publisher: American Physical Society (APS)
Date: 08-11-2018
Publisher: American Chemical Society (ACS)
Date: 12-12-2016
Publisher: American Physical Society (APS)
Date: 24-03-2014
Publisher: American Physical Society (APS)
Date: 17-10-2018
Publisher: American Chemical Society (ACS)
Date: 13-06-2018
Publisher: The Optical Society
Date: 20-11-2013
DOI: 10.1364/OL.38.004970
Publisher: American Physical Society (APS)
Date: 06-02-2015
Publisher: Springer Science and Business Media LLC
Date: 09-02-2023
DOI: 10.1038/S41467-023-36418-Y
Abstract: Topological cavities, whose modes are protected against perturbations, are promising candidates for novel semiconductor laser devices. To date, there have been several demonstrations of topological lasers (TLs) exhibiting robust lasing modes. The possibility of achieving nontrivial beam profiles in TLs has recently been explored in the form of vortex wavefront emissions enabled by a structured optical pump or strong magnetic field, which are inconvenient for device applications. Electrically pumped TLs, by contrast, have attracted attention for their compact footprint and easy on-chip integration with photonic circuits. Here, we experimentally demonstrate an electrically pumped TL based on photonic analogue of a Majorana zero mode (MZM), implemented monolithically on a quantum cascade chip. We show that the MZM emits a cylindrical vector (CV) beam, with a topologically nontrivial polarization profile from a terahertz (THz) semiconductor laser.
Location: United States of America
No related grants have been discovered for Yidong Chong.