Optical Filters – Technology and Applications

Pust, Oliver

doi:10.1002/9781119636489.ch7

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…[18][19][20] An appropriate selection of the LVFs enables tailoring the system for the MIR spectral window of interest. 21 As no slit is required, the entire emitted IR radiation propagates through the ATR element and is guided toward the PLAD resulting in rapid spectra acquisition times. 22 However, it should be noted that this type of spectrometer is characterized by limited radiation throughput due to the filter design, i.e., LVFs selectively transmit only "quasi-continuous" segments of the spectrum along their spatial dimension adapted to the dimensions of the underlying detector array.…”

Section: Introductionmentioning

confidence: 99%

A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

et al. 2023

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The analytical performance of a compact infrared attenuated total reflection spectrometer using a pyroelectric detector array has been evaluated and compared to a conventional laboratory Fourier transform infrared system for applications in food analysis. Analytical characteristics including sensitivity, repeatability, linearity of the calibration functions, signal-to-noise ratio, and spectral resolution have been derived for both approaches. Representative analytes of relevance in food industries (i.e., organic solvents, fatty acids, and mycotoxins) have been used for the assessment of the performance of the device and to discuss the potential of this technology in food and feed analysis.

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Section: Introductionmentioning

confidence: 99%

A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

et al. 2023

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Green sorbents from agricultural wastes: A review of sustainable adsorption materials

Kainth,

Sharma,

Pandey

2024

Applied Surface Science Advances

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Design and Fabrication of High-Quality Two-Dimensional Silicon-Based Photonic Crystal Optical Cavity with Integrated Waveguides

Muhammad,

Chen,

Xian

et al. 2024

Photonics

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The emergences of silicon-based photonic crystal (PhC) waveguides and two-dimensional (2D) PhC line-defect optical cavities have revolutionized the field of integrated photonics. In this paper, we design and fabricate a high-quality (high-Q) 2D silicon-based PhC optical cavity with integrated waveguides. We employ the 2D finite-difference time-domain (FDTD) method to simulate the cavity, considering two different thicknesses: 0.5 μm and 0.25 μm. By optimizing the line-defect and air-slot widths for the integrated PhC waveguides, we are able to achieve remarkable Q-factors for the PhC optical cavity. With a silicon thickness of 0.5 μm, the high-Q achieves an impressively high value of 8.01 × 106, while at a silicon thickness of 0.25 μm, it achieves 1.91 × 107. This research highlights the importance of design optimization and fabrication techniques in achieving high-Q optical devices using PhC and silicon-based structures.

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Optical Filters – Technology and Applications

Cited by 3 publications

References 9 publications

A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

Green sorbents from agricultural wastes: A review of sustainable adsorption materials

Design and Fabrication of High-Quality Two-Dimensional Silicon-Based Photonic Crystal Optical Cavity with Integrated Waveguides

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