Modeling of a Waveguide‐Based UV–VIS–IR Spectrometer Based on a Lateral (In,Ga)N Alloy Gradient

Grundmann, Marius

doi:10.1002/pssa.201900170

Cited by 4 publications

(2 citation statements)

References 19 publications

(25 reference statements)

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“…Another strategy to increase the ease of fabricating a wide range of transmission wavelengths is to use a linear variable filter, which is typically either a wedged (52) or composition-graded filter (53), where the transmission or reflection spectrum varies continuously along one axis of the filter. One approach here is to simply scan a spectrum by sliding the filter over a single detector (54).…”

Section: Narrowband Filter Arrays and Linear Variable Filtersmentioning

confidence: 99%

Miniaturization of optical spectrometers

Yang

Albrow-Owen

Cai

et al. 2021

Science

502

263

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Spectroscopic analysis is one of the most widely used analytical tools in scientific research and industry. Although laboratory benchtop spectrometer systems offer superlative resolution and spectral range, their miniaturization is crucial for applications where portability is paramount or where in situ measurements must be made. Advancement in this field over the past three decades is now yielding microspectrometers with performance and footprint near those viable for lab-on-a-chip systems, smartphones, and other consumer technologies. We summarize the technologies that have emerged toward achieving these aims—including miniaturized dispersive optics, narrowband filter systems, Fourier transform interferometers, and reconstructive microspectrometers—and discuss the challenges associated with improving spectral resolution while device dimensions shrink ever further.

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Section: Narrowband Filter Arrays and Linear Variable Filtersmentioning

confidence: 99%

Miniaturization of optical spectrometers

Yang

Albrow-Owen

Cai

et al. 2021

Science

502

263

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show abstract

“…Die nachfolgende ortsaufgelöste Untersuchung der strukturellen, elektrischen und optischen Eigenschaften erlaubt die vollständige Charakterisierung der Legierungssysteme. Kürzlich wurden von uns auch neue Bauelement-Konzepte für miniaturisierte Spektrometer auf der Basis der Materialgradienten vorgestellt [31,32].…”

Section: Zusammenfassungunclassified

Oxid‐Halbleiter mit ultrabreiter Bandlücke

Grundmann

2020

Vak Forsch Prax

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Zusammenfassung Die Gepulste Laserdeposition (PLD, pulsed laser deposition) ist eine vergleichsweise einfache physikalische, vakuumbasierte Methode zur Herstellung von Dünnschichten. Hier werden verschiedene Aspekte der Abscheidung von oxidischen Halbleitern beleuchtet, insbesondere für das (Al,Ga,In)2O3‐System mit sehr großer Bandlücke. Die von uns entwickelte Methode der kombinatorischen PLD für einen lateralen Konzentrationsgradienten (CCS‐PLD, continuous composition spread PLD) erlaubt eine einfache Darstellung von Legierungsreihen. In Kombination mit anschließenden ortsaufgelösten Methoden zur strukturellen, elektrischen und optischen Charakterisierung ergibt sich eine effiziente und systematische Untersuchung der physikalischen Eigenschaften der Legierungshalbleiter.

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Multimodal light-sensing pixel arrays

Yang

et al. 2022

Applied Physics Letters

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Image sensors used in consumer cameras only detect intensity of light. Spectral, angular, and phase information of incident light is largely lost. For conventional applications like photography, the intensity information with three color bands (RGB) is sufficient. However, for advanced sensing applications, such as autonomous vehicles, biomedical imaging, and robotics, extracting more information from the incident light could help machines to make better decisions. It is expected that, in the future, more cameras will be built for machines than for people, which will be further accelerated by the rapid progress in machine learning and artificial intelligence. We envision that these applications will substantially benefit from multimodal measurement of light fields by advanced imaging sensors. In this Perspective, we discuss recent progress in image sensors with multimodal capabilities.

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Modeling of a Waveguide‐Based UV–VIS–IR Spectrometer Based on a Lateral (In,Ga)N Alloy Gradient

Cited by 4 publications

References 19 publications

Miniaturization of optical spectrometers

Miniaturization of optical spectrometers

Oxid‐Halbleiter mit ultrabreiter Bandlücke

Multimodal light-sensing pixel arrays

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