Results 21 to 30 of about 68,699 (269)

Glucose sensing by means of silicon photonics [PDF]

open access: yes, 2014
Diabetes is a fast growing metabolic disease, where the patients suffer from disordered glucose blood levels. Monitoring the blood glucose values in combination with extra insulin injection is currently the only therapy to keep the glucose concentration ...
Baets, Roel   +9 more
core   +1 more source

Silicon photonics for on-chip spectrophotometry [PDF]

open access: yes, 2015
Silicon and Silicon Nitride photonics arc on their way to open the route towards integrated on-chip spectropholometers, Cost, miniaturization, miniaturization, hut also performance advantages ace at the origin of their potential We will discuss several ...
Baets, Roel   +12 more
core   +2 more sources

Integrated Optic Sensing Spectrometer: Concept and Design [PDF]

open access: yesSensors, 2019
In this paper the concept and design of an integrated optical device featuring evanescent field sensing and spectrometric analysis is presented. The device, termed integrated optics sensing spectrometer (IOSS), consists of a modified arrayed waveguide grating (AWG) which arms are engineered into two sets having different focal points.
Gloria Micó   +3 more
openaire   +5 more sources

Oxygen A-band absorption spectroscopy with solar photon counting and lithium niobate nanophotonic circuits

open access: yesFrontiers in Remote Sensing, 2022
Oxygen A-band measurements can provide important information about cloud top height, cloud physical and optical thickness, and surface atmospheric pressure.
Jiuyi Zhang   +4 more
doaj   +1 more source

Sub-terahertz silicon-based on-chip absorption spectroscopy using thin-film model for biological applications

open access: yesScientific Reports, 2022
Spectroscopy in the sub-terahertz (sub-THz) range of frequencies has been utilized to study the picosecond dynamics and interaction of biomolecules. However, widely used free-space THz spectrometers are typically limited in their functionality due to low
Seyed Ali Hosseini Farahabadi   +5 more
doaj   +1 more source

High-Fidelity Spectroscopy at the Highest Resolutions [PDF]

open access: yes, 2010
High-fidelity spectroscopy presents challenges for both observations and in designing instruments. High-resolution and high-accuracy spectra are required for verifying hydrodynamic stellar atmospheres and for resolving intergalactic absorption-line ...
Allende Prieto   +29 more
core   +1 more source

Multi-foci metalens for spectra and polarization ellipticity recognition and reconstruction

open access: yesOpto-Electronic Science, 2023
Multispectral and polarized focusing and imaging are key functions that are vitally important for a broad range of optical applications. Conventional techniques generally require multiple shots to unveil desired optical information and are implemented ...
Hui Gao   +10 more
doaj   +1 more source

Silicon Photonic Phase Shifters and Their Applications: A Review

open access: yesMicromachines, 2022
With the development of silicon photonics, dense photonic integrated circuits play a significant role in applications such as light detection and ranging systems, photonic computing accelerators, miniaturized spectrometers, and so on. Recently, extensive
Haoyang Sun   +3 more
doaj   +1 more source

III-V-on-silicon photonic devices for optical communication and sensing [PDF]

open access: yes, 2015
In the paper, we review our work on heterogeneous III-V-on-silicon photonic components and circuits for applications in optical communication and sensing.
Abbasi, Amin   +33 more
core   +4 more sources

A New Intensity Adjustment Technique of Emission Spectral Analysis When Measured at the Upper Limit of the Dynamic Range of Charge-Coupled Devices

open access: yesApplied Sciences, 2022
The article presents a method of mathematical correction to be applied to the results of measuring the intensity of spectral lines using charge-coupled devices (CCDs) in the presence of the blooming effect.
Anna N. Popova   +2 more
doaj   +1 more source

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