Results 11 to 20 of about 6,104,454 (322)
Optical methods for measuring the feature size of optical diffraction gratings with nano-meter accuracy and implementation of suitable feedback control loops [PDF]
EPJ Web of Conferences, 2022 Surface relief diffraction gratings offer a high flexibility in their design and thus allow to synchronize their optical performance with the specific requirements of the underlying application.
Flügel-Paul Thomas +4 more
doaj +1 more source
Concept, manufacturing and challenges of ultra-compact snapshot multi-spectral multi-aperture imaging systems [PDF]
EPJ Web of Conferences, 2022 Snapshot multispectral imaging is a rising non-invasive and contact-free analysis method and technology to discriminate or identify objects based on their spectral characteristics.
Hubold Martin +4 more
doaj +1 more source
Applied electromagnetic optics simulations for nanophotonics
Journal of Applied Physics, 2021 Nanophotonics—the science and technology of confining, guiding, and making photons interact with matter at the nanoscale—is an active research field.
N. Anttu +5 more
semanticscholar +1 more source
Curcuma longa-Based Optical Sensor for Hydrochloric Acid and Ammonia Vapor Detection
Sensors, 2023 In this research, we present a prototype optical system that offers significant advances in detecting hydrochloric acid (HCl) and ammonia (NH3) vapors.
A. Sánchez Juárez +5 more
doaj +1 more source
Sensors, 2022 Chlorophyll-a measurement is important in algal growth and water quality monitoring in natural waters. A portable pulsed LED fluorescence lidar system based on the preliminary algal organic matter and pigments excitation–emission matrix (EEM) of ...
Jumar G. Cadondon +4 more
doaj +1 more source
Photonics, 2023 The real-time chlorophyll-a pigment monitoring of C. reinhardtii is studied using our developed LED fluorescence light detection and ranging (LiDAR) system.
Jumar G. Cadondon +3 more
doaj +1 more source
Sparse Mid-Infrared Spectra Enable Real-time and In-vivo Applications in Tissue Discrimination [PDF]
EPJ Web of Conferences, 2022 Differentiation of malign and benign tissue based on spectral information can be done by only using a small fractional amount of the original mid-infrared spectrum.
Fischer Felix +2 more
doaj +1 more source
Atom Interferometry with Floquet Atom Optics. [PDF]
Physical Review Letters, 2022 Floquet engineering offers a compelling approach for designing the time evolution of periodically driven systems. We implement a periodic atom-light coupling to realize Floquet atom optics on the strontium ^{1}S_{0}-^{3}P_{1} transition.
T. Wilkason +8 more
semanticscholar +1 more source
Irradiance tailoring with multiple sources using B-spline refinement [PDF]
EPJ Web of Conferences, 2022 To increase the irradiance generated by an illumination system, multiple sub-systems, each generating their own irradiance distribution can be used.
Heemels Alexander +2 more
doaj +1 more source