Pursuing the Diffraction Limit with Nano-LED Scanning Transmission Optical Microscopy.
Sergio Moreno,J. Canals,Victor Moro,Nil Franch,Anna Vilà,Albert Romano-Rodriguez,Joan Daniel Prades,Daria D. Bezshlyakh,Andreas Waag,Katarzyna Kluczyk-Korch,Matthias Auf der Maur,Aldo Di Carlo,Sigurd Krieger,Silvana Geleff,Angel Dieguez +14 more
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In this article, an optically downscaled LED using an LED scanning transmission optical microscopy (STOM) technique was used to improve STOM images by oversampling the acquisition.Abstract:
Recent research into miniaturized illumination sources has prompted the development of alternative microscopy techniques. Although they are still being explored, emerging nano-light-emitting-diode (nano-LED) technologies show promise in approaching the optical resolution limit in a more feasible manner. This work presents the exploration of their capabilities with two different prototypes. In the first version, a resolution of less than 1 µm was shown thanks to a prototype based on an optically downscaled LED using an LED scanning transmission optical microscopy (STOM) technique. This research demonstrates how this technique can be used to improve STOM images by oversampling the acquisition. The second STOM-based microscope was fabricated with a 200 nm GaN LED. This demonstrates the possibilities for the miniaturization of on-chip-based microscopes.read more
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Journal ArticleDOI
Individually Switchable InGaN/GaN Nano-LED Arrays as Highly Resolved Illumination Engines
Katarzyna Kluczyk-Korch,Sergio Moreno,J. Canals,Angel Dieguez,Jan Gülink,Jana Hartmann,Andreas Waag,Aldo Di Carlo,Matthias Auf der Maur +8 more
TL;DR: In this article, two different approaches to achieve individually switchable nano-LED arrays were evaluated in terms of near field spot size and optical crosstalk between neighboring pixels by using finite difference time domain (FDTD) simulations.
Proceedings ArticleDOI
High power and high bandwidth CMOS driver for hybrid interconnected GaN microdisplay
TL;DR: In this article , an in-pixel driving circuit with switching capabilities up to 1MHz and LED bias current up to 120µA was presented, which is designed to be integrated in a 512x512 microdisplay of 1411 ppi with 10kfps working capabilities.
Proceedings ArticleDOI
Ray Tracing Simulation of a GaN-based integrated LED-Photodetector System
TL;DR: In this paper , an optical sensor system consisting of a pair of GaN LED and Photodetector (PD) is simulated using COMSOL multiphysics, and the possibility of using this system as absorption coefficient sensor is studied.
References
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