نتایج جستجو برای: light trapping
تعداد نتایج: 415999 فیلتر نتایج به سال:
We propose a versatile optical ring lattice suitable for trapping cold and quantum degenerate atomic samples. We demonstrate the realisation of intensity patterns from pairs of Laguerre-Gauss (exp(i??) modes with different ? indices. These patterns can be rotated by introducing a frequency shift between the modes. We can generate bright ring lattices for trapping atoms in red-detuned light, and...
This paper demonstrates the optical trapping of micron-sized gold nanoparticle aggregates GNAs with a TEM00 mode laser at 532 nm and reports the observation of an unusual light-induced agglomeration phenomenon that occurs besides the trapping of the GNAs. The observed agglomerate has a 60–100 m donut-shaped metal microstructure with the rate of formation dependent on the laser power used. Citra...
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Optical trapping describes the interaction between light and matter to manipulate micro-objects through momentum transfer. In case of 3D with a single beam, this is termed optical tweezers. tweezers are powerful noninvasive tool for manipulating small objects, have become indispensable in many fields, including physics, biology, soft condensed matter, among others. early days, was typically acc...
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