摘要:
An optical etching device for laser machining is provided and includes a laser light source and an optical head. The laser light source emits an incident beam. The optical head includes a transparent substrate, an opaque film and a sub-wavelength annular channel. The laser energy tolerance of the transparent substrate ranges from 8 J/cm2 to 12 J/cm2. The opaque film has a first surface and a second surface opposite to the first surface. The transparent substrate is adhered to the first surface. The sub-wavelength annular channel is formed in the opaque film and extends from the first surface to the second surface so that the incident beam from the transparent substrate generates a surface plasma wave on the opaque film.
摘要翻译:提供了一种用于激光加工的光刻蚀装置,包括激光光源和光头。 激光光源发射入射光束。 光头包括透明基板,不透明膜和亚波长环形通道。 透明基板的激光能量容差为8J / cm 2〜12J / cm 2。 不透明膜具有与第一表面相对的第一表面和第二表面。 透明基板粘附到第一表面。 亚波长环形通道形成在不透明膜中并且从第一表面延伸到第二表面,使得来自透明基板的入射光束在不透明膜上产生表面等离子体波。
摘要:
A micro optical head is provided, which provides sub-wavelength focusing spot and very long depth of focus. The optical head includes a transparent substrate, an opaque film, and at least one sub-wavelength annular channel. After coherent light transmits the transparent substrate supporting the optical head and passes through the appropriately designed sub-wavelength annular channel, the transmitted light can overcome the diffraction limit, and the transmission energy is improved efficiently. The transmitted light converges after a certain distance behind the optical head and forms a sub-wavelength-scale beam that maintains a very long distance without divergence.
摘要:
A micro optical head is provided, which provides sub-wavelength focusing spot and very long depth of focus. The optical head includes a transparent substrate, an opaque film, and at least one sub-wavelength annular channel. After coherent light transmits the transparent substrate supporting the optical head and passes through the appropriately designed sub-wavelength annular channel, the transmitted light can overcome the diffraction limit, and the transmission energy is improved efficiently. The transmitted light converges after a certain distance behind the optical head and forms a sub-wavelength-scale beam that maintains a very long distance without divergence.
摘要:
An actuator and a method for using the same are provided. The actuator includes a flexible element and a photoelectric layer. The flexible element includes an elastic layer or a piezoelectric layer. The photoelectric layer is disposed on a side of the flexible element. An electrical characteristic of the photoelectric layer is determined according to an irradiation condition of the photoelectric layer.
摘要:
An actuator and a method for using the same are provided. The actuator includes a flexible element and a photoelectric layer. The flexible element includes an elastic layer or a piezoelectric layer. The photoelectric layer is disposed on a side of the flexible element. An electrical characteristic of the photoelectric layer is determined according to an irradiation condition of the photoelectric layer.
摘要:
The invention provides a broadband cholesteric liquid crystal film, a method for fabricating the same, a polarization device employing the same, and high light efficiency liquid crystal display employing the same. The cholesteric liquid crystal film is a single-layer liquid crystal material structure, and has a top surface and a bottom surface. Further, the cholesteric liquid crystal film includes a first region, a second region, and a third region, and the first region is adjacent to the top surface of the cholesteric liquid crystal film, the third region is adjacent to the bottom surface of the cholesteric liquid crystal film, and the second region is located between the first and third regions, and the average helical pitch P1 of the first region and the average helical pitch P3 of the third region are both larger than the average helical pitch P2 of the second region.
摘要:
The invention provides a broadband cholesteric liquid crystal film, a method for fabricating the same, a polarization device employing the same, and high light efficiency liquid crystal display employing the same. The cholesteric liquid crystal film is a single-layer liquid crystal material structure, and has a top surface and a bottom surface. Further, the cholesteric liquid crystal film includes a first region, a second region, and a third region, and the first region is adjacent to the top surface of the cholesteric liquid crystal film, the third region is adjacent to the bottom surface of the cholesteric liquid crystal film, and the second region is located between the first and third regions, and the average helical pitch P1 of the first region and the average helical pitch P3 of the third region are both larger than the average helical pitch P2 of the second region.
摘要:
A gas sensor cell using a liquid crystal composite material is provided. The gas sensor cell has recovery capability and can be reused. Upon gas adsorption, the liquid crystal composite material has visually detectable color changes and changes in electrical properties to facilitate the measurement of gas concentration from low to high.