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Metasurface electrode light emitting diodes with planar light control.

ABSTRACT: The ability of metasurfaces to manipulate light at the subwavelength scale offers unprecedented functionalities for passive and active lasing devices. However, applications of metasurfaces to optical devices are rare due to fabrication difficulties. Here, we present quantum dot light emitting diodes (QDLEDs) with a metasurface-integrated metal electrode and demonstrate microscopically controlled LED emission. By incorporating slot-groove antennas into the metal electrode, we show that LED emission from randomly polarized QD sources can be polarized and directed at will. Utilizing the relation between polarization and emission direction, we also demonstrate microscopic LED beam splitting through the selective choice of polarization.

SUBMITTER: Park Y

PROVIDER: S-EPMC5677004 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Metasurface electrode light emitting diodes with planar light control.

Park Yeonsang Y Kim Jineun J Cho Kyung-Sang KS Kim Hyochul H Lee Min-Kyung MK Lee Jae-Soong JS Kim Un Jeong UJ Hwang Sung Woo SW Brongersma Mark L ML Roh Young-Geun YG Park Q-Han QH

Scientific reports 20171107 1

The ability of metasurfaces to manipulate light at the subwavelength scale offers unprecedented functionalities for passive and active lasing devices. However, applications of metasurfaces to optical devices are rare due to fabrication difficulties. Here, we present quantum dot light emitting diodes (QDLEDs) with a metasurface-integrated metal electrode and demonstrate microscopically controlled LED emission. By incorporating slot-groove antennas into the metal electrode, we show that LED emissi ...[more]

PMID: 29116150

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