نتایج جستجو برای: light trap

تعداد نتایج: 422592  

2015
Zhiyang Hu Shuhong Xu Xiaojing Xu Zhaochong Wang Zhuyuan Wang Chunlei Wang Yiping Cui

In optics, when polychromatic light is filtered by an optical filter, the monochromaticity of the light can be improved. In this work, we reported that Ag dopant atoms could be used as an optical filter for nanosized Mn:ZnSe quantum dots (QDs). If no Ag doping, aqueous Mn:ZnSe QDs have low monochromaticity due to coexisting of strong ZnSe band gap emission, ZnSe trap emission, and Mn dopant emi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1976
W Arnold

Electrons, from the oxidation of water, inside the grana disks (thylakoids) are transferred across the membrane to the outside, to the Calvin cycle or the Hill oxidant. The span in redox level may be 2.3 V. Part of the system II chlorophyll is on the inside of the membrane and part on the outside. An electron trap is embedded in the membrane. Alternately, an excited chlorophyll on the inside gi...

2016
Peter J. T. White Katharine Glover Joel Stewart Amanda Rice

The universal mercury vapor black light trap is an effective device used for collecting moth specimens in a wide variety of habitats; yet, they can present challenges for researchers. The mercury vapor trap is often powered by a heavy automotive battery making it difficult to conduct extensive surveys in remote regions. The mercury vapor trap also carries a considerable financial cost per trap ...

2012
David P. Tchouassi Rosemary Sang Catherine L. Sole Armanda D. S. Bastos Klaus Mithoefer Baldwyn Torto

In recent years, the East African region has seen an increase in arboviral diseases transmitted by blood-feeding arthropods. Effective surveillance to monitor and reduce incidence of these infections requires the use of appropriate vector sampling tools. Here, trapped skin volatiles on fur from sheep, a known preferred host of mosquito vectors of Rift Valley fever virus (RVFV), were used with a...

Journal: :Nature nanotechnology 2016
Karan K Mehta Colin D Bruzewicz Robert McConnell Rajeev J Ram Jeremy M Sage John Chiaverini

The long coherence times and strong Coulomb interactions afforded by trapped ion qubits have enabled realizations of the necessary primitives for quantum information processing and the highest-fidelity quantum operations in any qubit to date. Although light delivery to each individual ion in a system is essential for general quantum manipulations and readout, experiments so far have employed op...

Journal: :FEBS letters 1972
Govindjee J -M. Briantais

Chlorophyll (Chl) b is non-fluorescent in utio as it transfers excitation energy with 100% efficiency to Chl a [l-3]. There is no record of Chl b fluorescence in viva. We show here, for the first time, that Chi b is slightly fluorescent in vivo (at 660-665 nm) when the cells are exposed to bright light, or treated with DCMU (see footnote*); this emission was uncovered when we compared the ratio...

Journal: :IEICE Transactions 2011
Shinya Morita Satoshi Yasuno Aya Miki Toshihiro Kugimiya

We have studied effects of additive elements into the channel layers of amorphous IGZO TFTs on threshold voltage shift issues under light illumination stress condition. By addition of Hf or Si element, the Vth shift under light illumination and negative bias-temperature stress and illumination stress conditions was drastically suppressed while the switching operation of TFTs using IGZO with Mn ...

2004
Vincent Ricardo Daria Peter John Rodrigo Jesper Glückstad

A dynamic array of dark optical traps is generated for simultaneous trapping and arbitrary manipulation of multiple low-index microstructures. The dynamic intensity patterns forming the dark optical trap arrays are generated using a nearly loss-less phase-to-intensity conversion of a phase-encoded coherent light source. Two-dimensional input phase distributions corresponding to the trapping pat...

Journal: :Entropy 2014
Yin H. Fung Alicia V. Carpentier Pimonpan Sompet Mikkel F. Andersen

We review light assisted collisions in a high-density far-off resonant optical trap (FORT). By tuning the parameters of the light that induces the collisions, the effects of the collisions can be controlled. Trap loss can be suppressed even at high atomic densities, allowing us to count the atoms using fluorescence detection. When only two atoms are trapped, individual loss events reveal new in...

2009
Ke Xiao David G. Grier

The trajectories of colloidal particles driven through a periodic potential energy landscape can become kinetically locked in to directions dictated by the landscape’s symmetries. When the landscape is realized with forces exerted by a structured light field, the path a given particle follows has been predicted to depend exquisitely sensitively on such properties as the particle’s size and refr...

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