Results 31 to 40 of about 7,175,761 (309)
Regimes of atomic diffraction: Raman versus Bragg diffraction in retroreflective geometries [PDF]
, 2020 We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counterpropagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a ...
Abend, Sven +6 more
core +2 more sources
Canopy light distribution effects on light use efficiency in wheat and its mechanism
Frontiers in Ecology and Evolution, 2022 Optimizing canopy light distribution (CLD) has manifested improved light utility and yield without modifying other inputs. Nonetheless, molecular mechanisms working at cellular and organelle level remain to be elucidated.
Jie Zhang +9 more
doaj +1 more source
Agronomy, 2020 Insufficient exposure to light in the winter may result in a longer production periods and lower quality of seedlings in greenhouses for plug growers. Supplementary artificial lighting to plug seedlings may be one solution to this problem.
Hao Wei +2 more
doaj +1 more source
Diurnal and Seasonal Variations of Photosynthetic Energy Conversion Efficiency of Field Grown Wheat
Frontiers in Plant Science, 2022 Improving canopy photosynthetic light use efficiency and energy conversion efficiency (εc) is a major option to increase crop yield potential. However, so far, the diurnal and seasonal variations of canopy light use efficiency (LUE) and εc are largely ...
Qingfeng Song +7 more
doaj +1 more source
High-Efficiency Visible Light Manipulation Using Dielectric Metasurfaces [PDF]
Scientific Reports, 2019 AbstractThe development of a miniaturised device that provides efficient beam manipulation with high transmittance is extremely desirable for the broad range of applications including holography, metalens, and imaging. Recently, the potential of dielectric metasurfaces has been unleashed to efficiently manipulate the beam with full 2π-phase control by ...
Aoni, RA +7 more
openaire +3 more sources
Ecohydrology, 2021 Both light use efficiency (LUE) and water use efficiency (WUE) play essential roles in ecosystem production. The extent to which ecosystem production is affected by the coupling between LUE and WUE remains unclear.
Dexin Gao +6 more
semanticscholar +1 more source
Interrelationships between water use efficiency and light use efficiency in four row crop canopies
Agrosystems, Geosciences & Environment, 2020 Quantitative evidence of light use efficiency (LUE) controls on water use efficiency (WUE) is lacking, especially comparatively across row crops. Field research experiments (2016–2018) were set up for maize (Zea mays L.), soybean [Glycine max (L.) Merr.],
Meetpal S. Kukal, Suat Irmak
doaj +1 more source
High Efficiency Photon Counting Using Stored Light [PDF]
Physical Review Letters, 2002 Single-photon detection and photon counting play a central role in a large number of quantum communication and computation protocols. While the efficiency of state-of-the-art photo-detectors is well below the desired limits, quantum state measurements in trapped ions can be carried out with efficiencies approaching 100%.
openaire +3 more sources
Cell sorting using efficient light shaping approaches [PDF]
SPIE Proceedings, 2016 Early detection of diseases can save lives. Hence, there is emphasis in sorting rare disease-indicating cells within small dilute quantities such as in the confines of lab-on-a-chip devices. In our work, we use optical forces to isolate red blood cells detected by machine vision.
Andrew Bañas +3 more
openaire +3 more sources
Plants, 2021 Light-emitting diodes allow for the application of specific wavelengths of light to induce various morphological and physiological responses. In lettuce (Lactuca sativa), far-red light (700–800 nm) is integral to initiating shade responses which can ...
Reeve Legendre, Marc W. van Iersel
doaj +1 more source