Miniaturized spectrometers with a tunable van der Waals junction

Spectral analysis is an important tool that is widely used in scientific research and industry. Although the performance of benchtop spectrometers is very high, miniaturization and portability are more important indicators in some applications, such as on-site detection and real-time monitoring. Since the 1990s, micro spectrometers have emerged and developed. Meanwhile, with the development of nanotechnology, nanomaterials have been applied in the design of various micro spectrometers in recent years, further reducing the size of the spectrometers. In this paper, we review the research progress of micro spectrometers based on nanomaterials. We also discuss the main limitations and perspectives on micro spectrometers.

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“…It was expected to have a broad application prospect in smartphones, satellite devices, etc. [ 83 ].…”

Section: Types Of Micro Spectrometersmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Micro Spectrometers Based on Materials Nanoarchitectonics

et al. 2023

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“…Similarly, our approach does not rely on modification of or adaptation of the spectral element to the camera or image sensor (30)(31)(32). Because light emission can be generated across a broad spectral range, the potentially achievable spectral range is broader and does not rely on carefully engineered material syntheses or highly material-specific physics (9,33,34).…”

Section: Reconstructive Spectral Imagingmentioning

confidence: 99%

Highly multicolored light-emitting arrays for compressive spectroscopy

et al. 2023

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Miniaturized, multicolored light-emitting device arrays are promising for applications in sensing, imaging, computing, and more, but the range of emission colors achievable by a conventional light-emitting diode is limited by material or device constraints. In this work, we demonstrate a highly multicolored light-emitting array with 49 different, individually addressable colors on a single chip. The array consists of pulsed-driven metal-oxide-semiconductor capacitors, which generate electroluminescence from microdispensed materials spanning a diverse range of colors and spectral shapes, enabling facile generation of arbitrary light spectra across a broad wavelength range (400 to 1400 nm). When combined with compressive reconstruction algorithms, these arrays can be used to perform spectroscopic measurements in a compact manner without diffractive optics. As an example, we demonstrate microscale spectral imaging of samples using a multiplexed electroluminescent array in conjunction with a monochrome camera.

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“…With the rapid development of nanophotonics, integrated on-chip micro-spectrometers based on the devices made of metasurfaces or microstructures have been proposed in recent years 21,22,23,24 . The ingenious design of these devices highly reduces the physical dimensions of the spectrometers.…”

Section: Introductionmentioning

confidence: 99%

Planar photonic chips with tailored dispersion relations for high-efficient spectrographic devices

Chen¹,

Fan

Sun

et al. 2023

Preprint

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Spectral characterizations play the important roles in both scientific research and industry. Now, there is a growing demand for spectrometers that have the merits of miniaturized size, high-efficiency, and high spectral resolution. Here, a planar photonic chip containing a photonic band gap (PBG) with tailored dispersion relations is proposed to work as a high-efficient compact spectrographic device, taking advantages of its loading Bloch surface waves (BSWs). When this chip was attached to a prism, the angular dispersion power of the low-loss BSWs enhances the spectra resolving ability of this prism without any need for inversion algorithms or physical slits, thus resulting in high efficiency in utilizing the optical signals and retrieving the spectra. The spectra of various source, such as laser, white light, fluorescence emission, and even the Raman scattering light are characterized with the compact high-efficient spectrographic devices. The achieved spectral resolution can be as high as 0.6 nm.

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Miniaturized spectrometers with a tunable van der Waals junction

Cited by 118 publications

References 65 publications

Micro Spectrometers Based on Materials Nanoarchitectonics

Micro Spectrometers Based on Materials Nanoarchitectonics

Highly multicolored light-emitting arrays for compressive spectroscopy

Planar photonic chips with tailored dispersion relations for high-efficient spectrographic devices

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