Highly directional emission from a broadband organic light-emitting diode using a substrate diffractive optical element for visible light communications

Shuyu Zhang; Graham A. Turnbull; Ifor D.W. Samuel

Highly directional emission from a broadband organic light-emitting diode using a substrate diffractive optical element for visible light communications

Shuyu Zhang, Graham A. Turnbull, Ifor D.W. Samuel^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

An important challenge for organic light-emitting diodes (OLEDs) is to control their emission pattern. Here a SuperYellow OLED was fabricated and the spatial distribution of the emission from the OLED was strongly shaped into a directional beam by using a butt-coupled diffractive optical element and a green band-pass filter. The out-coupled beam peaked at 535 nm with a fullwidth-half-maximum (FWHM) of ∼20 nm and the overall FWHM divergence of the beam integrated from 500 nm to 570 nm was 10. for s-polarisation and 14. for p-polarisation, which shows a strong directionality, compared with the normally Lambertian emission of an OLED. Such directional emission can be used to enhance data-rates of visible light communications by using parallel data transmission and decreasing cross talk.

Original language	English
Pages (from-to)	273-282
Number of pages	10
Journal	Nonlinear Optics Quantum Optics
Volume	46
Issue number	2-4
Publication status	Published - 2015

Keywords

Broadband emitter
Diffractive optical element
Nanoimprint lithography
OLED
Visible light communications

Cite this

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title = "Highly directional emission from a broadband organic light-emitting diode using a substrate diffractive optical element for visible light communications",

abstract = "An important challenge for organic light-emitting diodes (OLEDs) is to control their emission pattern. Here a SuperYellow OLED was fabricated and the spatial distribution of the emission from the OLED was strongly shaped into a directional beam by using a butt-coupled diffractive optical element and a green band-pass filter. The out-coupled beam peaked at 535 nm with a fullwidth-half-maximum (FWHM) of ∼20 nm and the overall FWHM divergence of the beam integrated from 500 nm to 570 nm was 10. for s-polarisation and 14. for p-polarisation, which shows a strong directionality, compared with the normally Lambertian emission of an OLED. Such directional emission can be used to enhance data-rates of visible light communications by using parallel data transmission and decreasing cross talk.",

keywords = "Broadband emitter, Diffractive optical element, Nanoimprint lithography, OLED, Visible light communications",

author = "Shuyu Zhang and Turnbull, {Graham A.} and Samuel, {Ifor D.W.}",

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year = "2015",

language = "English",

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journal = "Nonlinear Optics Quantum Optics",

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TY - JOUR

T1 - Highly directional emission from a broadband organic light-emitting diode using a substrate diffractive optical element for visible light communications

AU - Zhang, Shuyu

AU - Turnbull, Graham A.

AU - Samuel, Ifor D.W.

PY - 2015

Y1 - 2015

N2 - An important challenge for organic light-emitting diodes (OLEDs) is to control their emission pattern. Here a SuperYellow OLED was fabricated and the spatial distribution of the emission from the OLED was strongly shaped into a directional beam by using a butt-coupled diffractive optical element and a green band-pass filter. The out-coupled beam peaked at 535 nm with a fullwidth-half-maximum (FWHM) of ∼20 nm and the overall FWHM divergence of the beam integrated from 500 nm to 570 nm was 10. for s-polarisation and 14. for p-polarisation, which shows a strong directionality, compared with the normally Lambertian emission of an OLED. Such directional emission can be used to enhance data-rates of visible light communications by using parallel data transmission and decreasing cross talk.

AB - An important challenge for organic light-emitting diodes (OLEDs) is to control their emission pattern. Here a SuperYellow OLED was fabricated and the spatial distribution of the emission from the OLED was strongly shaped into a directional beam by using a butt-coupled diffractive optical element and a green band-pass filter. The out-coupled beam peaked at 535 nm with a fullwidth-half-maximum (FWHM) of ∼20 nm and the overall FWHM divergence of the beam integrated from 500 nm to 570 nm was 10. for s-polarisation and 14. for p-polarisation, which shows a strong directionality, compared with the normally Lambertian emission of an OLED. Such directional emission can be used to enhance data-rates of visible light communications by using parallel data transmission and decreasing cross talk.

KW - Broadband emitter

KW - Diffractive optical element

KW - Nanoimprint lithography

KW - OLED

KW - Visible light communications

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M3 - Article

AN - SCOPUS:84938566804

SN - 1543-0537

VL - 46

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EP - 282

JO - Nonlinear Optics Quantum Optics

JF - Nonlinear Optics Quantum Optics

IS - 2-4

ER -

Highly directional emission from a broadband organic light-emitting diode using a substrate diffractive optical element for visible light communications

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