Results 31 to 40 of about 14,546 (292)

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

Scientific 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, Milad Entezami, Hesam Abouali, Hadi Amarloo, Mahla Poudineh, Safieddin Safavi-Naeini   +5 more
doaj   +1 more source

Improved coupling to integrated spatial heterodyne spectrometers with applications to space [PDF]

, 2011
Multiple Aperture Transform Chip Heterodyne (MATCH) spectrometers have been developed for targeted remote sensing applications in harsh environments. These waveguide-based Fourier Transform Spectrometers (FTS) offer significant improvements in resource ...
Scott, A., S. Janz, D.-X. Xu, Fernandez, I.M., P. Bock, M. Florjańczyk, Cheben, P., Janz, S., Florja\u144czyk, M., A. Scott, Bock, P., B. Solheim, Ramos, C.A., B. Lamontagne, P. Cheben, A. Ortega-Monux, C. A. Ramos, Xu, D.-X., I. M. Fernandez, Solheim, B., Lamontagne, B., Ortega-Monux, A.   +21 more
core   +1 more source

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

Applied 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, Vladimir S. Sukhomlinov, Aleksandr S. Mustafaev   +2 more
doaj   +1 more source

An inversely designed integrated spectrometer with reconfigurable performance and ultra-low power consumption

Opto-Electronic Advances
Despite the pressing demand for integrated spectrometers, a solution that deliver high-performance while being practically operated is still missing.
Ang Li, Yifan Wu, Chang Wang, Feixia Bao, Zongyin Yang, Shilong Pan   +5 more
doaj   +1 more source

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

Opto-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, Xuhao Fan, Yuxi Wang, Yuncheng Liu, Xinger Wang, Ke Xu, Leimin Deng, Cheng Zeng, Tingan Li, Jinsong Xia, Wei Xiong   +10 more
doaj   +1 more source

Integrated nano-opto-electro-mechanical sensor for spectrometry and nanometrology

Nature Communications, 2017
Fully integratable spectrometers have trade-offs between size and resolution. Here, the authors present a nano-opto-electro-mechanical system where the functionalities of transduction, actuation and detection are fully integrated, resulting in an ultra ...
Žarko Zobenica, Rob W. van der Heijden, Maurangelo Petruzzella, Francesco Pagliano, Rick Leijssen, Tian Xia, Leonardo Midolo, Michele Cotrufo, YongJin Cho, Frank W. M. van Otten, Ewold Verhagen, Andrea Fiore   +11 more
doaj   +1 more source

Silicon Photonic Phase Shifters and Their Applications: A Review

Micromachines, 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, Qifeng Qiao, Qingze Guan, Guangya Zhou   +3 more
doaj   +1 more source

Miniature integrated micro-spectrometer array for snap shot multispectral sensing [PDF]

, 2022
S.5719-5728An array of micro spectrometers for parallel spectral sensing is designed, set up and tested. It utilizes a planar prism grating combination to obtain an almost linear optical system of 6 mm length only.
Danz, N., Leitel, R., Flügel-Paul, T., Kleinle, S., Harzendorf, T., Höfer, B., Brunner, R., Dannberg, P., Förster, E.   +8 more
core   +1 more source

Photonic THz mixers based on iron-doped InGaAs embedded in a plasmonic microcavity

APL Photonics, 2023
We present an optoelectronic mixer for the terahertz (THz) frequency-domain based on an iron-doped InGaAs layer integrated in a plasmonic microcavity. We show that this structure, under 1550-nm-wavelength illumination, allows for more than 70% absorption
Charbel Tannoury, Victor Merupo, Giuseppe Di Gioia, Vanessa Avramovic, David Troadec, Jean-François Lampin, Guillaume Ducournau, Steffen Breuer, Björn Globisch, Stefano Barbieri, Robert B. Kohlhaas, Emilien Peytavit   +11 more
doaj   +1 more source

Solar spectra datasets at optimum and vertical installation angles in central Europe (Berlin) during 2020, 2021 and 2022

Data in Brief, 2023
This article provides datasets containing three years worth of solar spectra for the optimum installation angle of 35° and the building-integrated-photovoltaics relevant vertical angle of 90°.
Guillermo A. Farias-Basulto, Maximilian Riedel, Mark Khenkin, Rutger Schlatmann, Reiner Klenk, Carolin Ulbrich   +5 more
doaj   +1 more source