A kind of fluorescence optic-fiber thermometer is devised based on the ruby and absorbing glass sample. The optic- fiber temperature measurement probe based on ruby is developed. This system is particularly adaptable ...A kind of fluorescence optic-fiber thermometer is devised based on the ruby and absorbing glass sample. The optic- fiber temperature measurement probe based on ruby is developed. This system is particularly adaptable to the temperature measurement in the range of 0℃ to 130℃. A considerably improved performance is seen in this new device. The drive current to the LED can be easily kept within the required defined bounds through the control circuitry.展开更多
We investigate a tight-binding model of the ruby lattice with Rashba spin-orbit coupling. We calculate the band structure of the lattice and evaluate the Z2 topological indices. According to the Z2 topological indices...We investigate a tight-binding model of the ruby lattice with Rashba spin-orbit coupling. We calculate the band structure of the lattice and evaluate the Z2 topological indices. According to the Z2 topological indices and the band structure, we present the phase diagrams of the lattice with different filling fractions. We findthat topological insulators occur in some range of parameters at 1/6, 1/3, 1/2, 2/3 and 5/6 filling fractions. We analyze and discuss the characteristics of these topological insulators and their edge states.展开更多
基金National Natural Science Foundation of China(60272027) Science Technique Project of Hebei Depart ment ofEducation(2005359)
文摘A kind of fluorescence optic-fiber thermometer is devised based on the ruby and absorbing glass sample. The optic- fiber temperature measurement probe based on ruby is developed. This system is particularly adaptable to the temperature measurement in the range of 0℃ to 130℃. A considerably improved performance is seen in this new device. The drive current to the LED can be easily kept within the required defined bounds through the control circuitry.
基金Supported by the National Natural Science Foundation of China under Grant Nos. 11004028 and 11274061
文摘We investigate a tight-binding model of the ruby lattice with Rashba spin-orbit coupling. We calculate the band structure of the lattice and evaluate the Z2 topological indices. According to the Z2 topological indices and the band structure, we present the phase diagrams of the lattice with different filling fractions. We findthat topological insulators occur in some range of parameters at 1/6, 1/3, 1/2, 2/3 and 5/6 filling fractions. We analyze and discuss the characteristics of these topological insulators and their edge states.
