In this paper, we demonstrate an alternative approach to fabricating an electrically tunable holographic polymer tem- plated blue phase liquid crystal grating. This grating is obtained by preforming a polymer template...In this paper, we demonstrate an alternative approach to fabricating an electrically tunable holographic polymer tem- plated blue phase liquid crystal grating. This grating is obtained by preforming a polymer template comprised of periodic fringes, and then refilling it with a blue phase liquid crystal. Compared with conventional holographic polymer dispersed liquid crystal gratings, our grating can remarkably reduce its switching voltage from 200 V to 43 V while maintaining a sub-millisecond response time. The holographic polymer templated blue phase liquid crystal （HPTBPLC） grating is free from electrode patterning, thus leading to a lower cost and more flexible applications.展开更多
A polarization holographic grating, which integrates the functions of a grating and a wave plate and is called a diffractive wave plate, is recorded by two beams （left and right circularly polarized） of a 532 nm las...A polarization holographic grating, which integrates the functions of a grating and a wave plate and is called a diffractive wave plate, is recorded by two beams （left and right circularly polarized） of a 532 nm laser in an azo polymer with a liquid-crystal structure. The polarization conversion characteristics of the diffractive wave plates are investigated with a detecting light of 650 nm by metering the polarization state of first-order diffracted light. It is confirmed that the diffractive wave plates convert the incident linear polarization into circular polarization for a linearly polarized probe laser and reverse the sense of rotation of the circular polarization when the detecting light is circularly polarized light.展开更多
We theoretically study the light outcoupling efficiency of top-emitting organic light-emitting diode（OLED） with inverted structure and thin-film encapsulation.Thin-film optics is used to optimize the layer thickness...We theoretically study the light outcoupling efficiency of top-emitting organic light-emitting diode（OLED） with inverted structure and thin-film encapsulation.Thin-film optics is used to optimize the layer thickness to obtain high transmittance.Dipole mode is used to analyze the light outcoupling efficiency of the top-emitting OLED.Through this process,we can optimize the thin-film thickness with high transmittance and optimize the outcoupling efficiency of OLED.Compared with previous research,the current design method is a novel process.展开更多
A multiplexed holographic display video has been achieved by using a passive azo-dye-doped liquid crystal （LC） cell. Holograms formed in this cell can be refreshed in the order of several milliseconds. By angular mu...A multiplexed holographic display video has been achieved by using a passive azo-dye-doped liquid crystal （LC） cell. Holograms formed in this cell can be refreshed in the order of several milliseconds. By angular multiplexing technique, dynamically multiplexed holographic videos are realized. Moreover, the reconstructed RGB images are merged into a color image, which illustrates the possibility of a color holographic three-dimensional （3D） display by holographic multiplexing of the LC cell.展开更多
基金Project supported by the National Basic Research Program of China(Grant No.2013CB328804)the National Natural Science Foundation of China(Grant No.61307028)+1 种基金the Funds from the Science and Technology Commission of Shanghai Municipality(Grant Nos.11JC1405300,13ZR1420000,and14ZR1422300)the Fundamental Research Funds for the Central Universities,China(Grant No.XDJK 2011C047)
文摘In this paper, we demonstrate an alternative approach to fabricating an electrically tunable holographic polymer tem- plated blue phase liquid crystal grating. This grating is obtained by preforming a polymer template comprised of periodic fringes, and then refilling it with a blue phase liquid crystal. Compared with conventional holographic polymer dispersed liquid crystal gratings, our grating can remarkably reduce its switching voltage from 200 V to 43 V while maintaining a sub-millisecond response time. The holographic polymer templated blue phase liquid crystal （HPTBPLC） grating is free from electrode patterning, thus leading to a lower cost and more flexible applications.
基金supported by the National Natural Science Foundation of China (Nos. 11174203 and 11574211)the fund of the State Key Laboratory of Advanced Optical Communication Systems and Networks
文摘A polarization holographic grating, which integrates the functions of a grating and a wave plate and is called a diffractive wave plate, is recorded by two beams （left and right circularly polarized） of a 532 nm laser in an azo polymer with a liquid-crystal structure. The polarization conversion characteristics of the diffractive wave plates are investigated with a detecting light of 650 nm by metering the polarization state of first-order diffracted light. It is confirmed that the diffractive wave plates convert the incident linear polarization into circular polarization for a linearly polarized probe laser and reverse the sense of rotation of the circular polarization when the detecting light is circularly polarized light.
基金sponsored by the National "973" Program of China(No.2013CB328804)the National Natural Science Foundation of China(No.61307028)the Science and Technology Commission of Shanghai Municipality(No.13ZR1420000)
文摘We theoretically study the light outcoupling efficiency of top-emitting organic light-emitting diode（OLED） with inverted structure and thin-film encapsulation.Thin-film optics is used to optimize the layer thickness to obtain high transmittance.Dipole mode is used to analyze the light outcoupling efficiency of the top-emitting OLED.Through this process,we can optimize the thin-film thickness with high transmittance and optimize the outcoupling efficiency of OLED.Compared with previous research,the current design method is a novel process.
基金sponsored by the National"973"Program of China(No.2013CB328804)the National Natural Science Foundation of China(No.61307028)the Science & Technology Commission of Shanghai Municipality(Nos.13ZR1420000 and 11JC1405300)
文摘A multiplexed holographic display video has been achieved by using a passive azo-dye-doped liquid crystal （LC） cell. Holograms formed in this cell can be refreshed in the order of several milliseconds. By angular multiplexing technique, dynamically multiplexed holographic videos are realized. Moreover, the reconstructed RGB images are merged into a color image, which illustrates the possibility of a color holographic three-dimensional （3D） display by holographic multiplexing of the LC cell.
