10  Gbps wavelength division multiplexing using UV-A, UV-B, and UV-C micro-LEDs

Maclure, Daniel M.; McKendry, Jonathan J. D.; Islim, Mohamed Sufyan; Xie, Enyuan; Chen, Cheng; Sun, Xiaobin; Liang, Xudong; Huang, Xiaohui; Abumarshoud, Hanaa; Herrnsdorf, Johannes; Gu, Erdan; Haas, Harald; Dawson, Martin D.

doi:10.1364/prj.445984

Cited by 30 publications

(8 citation statements)

References 26 publications

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“…UVC micro-LED communication has achieved record data rate of 4 Gbps at a distance of 5 m [65]. WDM combining UVA, UVB, UVC and even visible light will further improve the data rate significantly [66,67]. Shorter wavelength UVC light can be strongly scattered for optical communication in air enabling possibilities of NLOS communication.…”

Section: Statusmentioning

confidence: 99%

The micro-LED roadmap: status quo and prospects

Lin,

Wu,

Kuo

et al. 2023

J. Phys. Photonics

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Micro LED can play an important role in the future generation of smart displays. They are found very attractive in many applications, such as maskless lithography, biosensor, AR/MR etc., at the same time. A monitor that can fulfill saturated color rendering, high display resolution, and fast response time is highly desirable, and the micro LED-based technology could be our best chance to meet these requirements. At present, semiconductor-based RGB micro LED chips and color-conversion enhanced Micro LEDs are the major contenders for the full-color high resolution displays. Both of the methods need revolutionary ways to perfect the material qualities, fabricate the device, assemble the individual parts into a system. In this roadmap, we will highlight the current status and challenges of the micro LED-related issues, and discuss the possible advances in science and technology that can stand up to the challenges. The innovation in epitaxy, such as the tunnel junction, the direct epitaxy and nitride based quantum wells for red and ultraviolet, can provide critical solutions of the micro LED performance in various aspects. The quantum scale structure like nanowire or nanorod can be crucial for the scaling of the devices. Meanwhile, the color conversion method, which uses colloidal quantum dots as the active material, can provide a hassle-free way to assemble a large micro LED array, and emphasis on the full color demonstration via colloidal quantum dots. These quantum dots can be patterned by porous structure, inkjet or photo-sensitive resin. In addition to the micro LED devices, the peripheral components or technologies are equally important. Microchip transfer and repair, heterogeneous integration with the electronics and the novel 2D material cannot be ignored or the overall display module will be very power-consuming. The augmented reality is one of the potential customer for our micro-LED displays and the user experience so far is limited due to lack of the truly qualified display. Our analysis showed the micro LED is on the way to address and solve the current problems, such as high loss optical coupling and narrow field of view. All these efforts are channeled to achieve an efficient display with all ideal qualities that meet our most stringent viewing requirements and expect it to become an indispensable part of our daily life.

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Section: Statusmentioning

confidence: 99%

The micro-LED roadmap: status quo and prospects

Lin,

Wu,

Kuo

et al. 2023

J. Phys. Photonics

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“…[ 145 ] Featured for short wavelengths and high photon energy, UV‐C micro‐LEDs present a significant perspective on Non‐Line‐of‐Sight (NLOS) optical communications with large modulation bandwidth [ 146 ] and rapid data transmission rates. [ 147 ] Furthermore, recent research efforts have spotlighted the UV‐C micro‐LEDs on the color‐conversion displays by tristimulus QDs. [ 148 ] Benefiting from the high QD absorbance and separated color emission from the pumping source, the UV‐C micro‐LEDs excitation exhibits high color conversion efficiency and optimized color rendering, [ 149 ] resulting in an ultra‐wide color gamut.…”

Section: Microdisplays In Novel Scenariosmentioning

confidence: 99%

Microdisplays: Mini‐LED, Micro‐OLED, and Micro‐LED

Miao

Hsiao

Sheng

et al. 2023

Advanced Optical Materials

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The field of next‐generation microdisplays is flourishing. Relevant display technologies, such as mini‐light emission diodes (mini‐LEDs), micro‐organic light emission diodes (micro‐OLEDs), and micro‐light emission diodes (micro‐LEDs) are thus in the urgent stage of development. From this perspective, comprehensive and systematical analyzes are conducted for the aforesaid microdisplay configurations. A holistic view of microdisplay technologies is developed with the corresponding performance metrics, providing a path for miscellaneous scenarios. Among these scenarios, the applications in augmented reality (AR), virtual reality (VR), wearable devices, and head‐up displays (HUD) are currently attracting considerable attention for deeper human‐digital interactions. However, there is a multiplicity of obstacles and challenges hindering such development. Nevertheless, recent advances in microdisplay technologies hold tremendous promise for the paradigms of these applications, taking a leap forward for next‐generation microdisplays. This review presents perspectives, relevant materials, and the technology landscape for such ongoing display technologies, offering guidance on the design of advanced microdisplays.

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“…The emission wavelength of the UV micro-LED also has considerable influence on the achievable data rate because of factors including the variation of LOP densities of micro-LEDs at different wavelengths and the responsivity of the detectors at different wavelengths [64,74]. Shorter wavelengths are also more strongly scattered by air, which may be advantageous for non-line-of-sight optical wireless links that rely on scattered light to overcome physical obstacles such as buildings.…”

Section: A Optical Communicationmentioning

confidence: 99%

AlGaN Ultraviolet Micro-LEDs

Tian

Shan

Zhu

et al. 2022

IEEE J. Quantum Electron.

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AlGaN-based UV LEDs have proven to have broad applications in many fields including sterilization, disinfection, purification, and phototherapy, but the performance still needs to be further improved. Benefiting from advantages such as better current spreading, lower self-heating effect and higher light extraction efficiency achieved by the reduced LED size, UV micro-LEDs are expected to improve quantum efficiency and thus can expand more potential applications. In this article, performance enhancement techniques and applications of UV micro-LEDs will be reviewed, providing an outlook for further development of AlGaN-based UV-LEDs. The micro-LED format offers possibilities to address fundamental issues that UV LEDs confront in general, but also demonstrates specific characteristics and performance advantages opening up new areas of application including high-speed optical communication, time-resolved fluorescence lifetime measurement, optical pumping, direct writing and charge management.

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10 Gbps wavelength division multiplexing using UV-A, UV-B, and UV-C micro-LEDs

Cited by 30 publications

References 26 publications

The micro-LED roadmap: status quo and prospects

The micro-LED roadmap: status quo and prospects

Microdisplays: Mini‐LED, Micro‐OLED, and Micro‐LED

AlGaN Ultraviolet Micro-LEDs

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