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A superlattice is a periodic structure of layers of two (or more) materials. Typically, the thickness of one layer is several nanometers . It can also refer to a lower-dimensional structure such as an array of quantum dots or quantum wells .
The conferences are devoted to the fundamental and technological issues relevant to the realization of a new generation of optoelectronic devices based on advanced low-dimensional and photonic structures, such as low threshold polariton lasers, new optical switches, single photon emitters, photonic band-gap structures, etc.
Min Naiben (simplified Chinese: 闵乃本; traditional Chinese: 閔乃本; pinyin: Mǐn Nǎiběn; 9 August 1935 – 16 September 2018), also known as Nai-Ben Ming, [1] was a Chinese materials scientist, physicist, and politician.
A metallic microlattice is composed of a network of interconnecting hollow struts. In the least-dense microlattice sample reported, each strut is about 100 micrometres in diameter, with a wall 100 nanometres thick.
The choice of waveguide material depends on the substrate used. For ICLs grown on GaSb, the separate confinement layers are typically low-doped GaSb while the optical cladding layers are InAs/AlSb superlattices lattice-matched to the GaSb substrate. The bottom cladding must be fairly thick to prevent leakage of the guided mode into the ...
The tuning of the chemical potential at the shape resonance can be obtained by changing: the charge density and/or the superlattice structural parameters, and/or the superlattice misfit strain and/or the disorder. Direct evidence for shape resonances in superstripes matter is provided by the anomalous variation of the isotope effect on the ...
The use of microstructures in 3D printing, where the thickness of each strut scale of tens of microns ranges from 0.2mm to 0.5mm, has the capabilities necessary to change the physical properties of objects (metamaterials) such as: elasticity, resistance, and hardness. [1]
When values of birefingence are very high, the property is termed giant birefringence which more generically is called giant optical anisotropy.Values for giant birefringence exceed 0.3.