Xi'an Institute of Optics and Precision Mechanics,CAS
Thin film vanadium oxide spatial light modulators and methods | |
其他题名 | Thin film vanadium oxide spatial light modulators and methods |
BLODGETT, DAVID W.; LANGE, CHARLES H.; MCNALLY, PHILIP J.; DUNCAN, DONALD D. | |
1997-03-04 | |
专利权人 | JOHNS HOPKINS UNIVERSITY, THE |
公开日期 | 1997-03-04 |
授权国家 | 美国 |
专利类型 | 授权发明 |
摘要 | Vanadium dioxide (VO2) based infrared spatial light modulators (SLM) in four embodiments are disclosed: (1) A VO2 thin film is deposited on a planar diode array. Each diode constitutes a "pixel" of the SLM. Power provided to a diode permits accurate thermal control about the thin film's hysteresis. Initial biasing of the diode array is required to the base of the VO2's hysteresis curve. (2) & (3) VO2 is deposited on a thermoelectric array which can be an array of doped lines of p and n type material or a conductive material between two electrical contacts. The pixels have the ability to both heat and cool the VO2 film, thereby allowing the array to be operated in a bistable mode. Bistable operation requires external biasing to the center of the VO2's hysteresis curve. (4) A VO2 thin film deposited on a substrate which is spaced a distance, L, from an array of vertical-cavity surface-emitting lasers for heating the VO2. |
其他摘要 | 公开了四个实施例中的基于二氧化钒(VO2)的红外空间光调制器(SLM):( 1)将VO2薄膜沉积在平面二极管阵列上。每个二极管构成SLM的“像素”。提供给二极管的功率允许对薄膜的滞后进行精确的热控制。二极管阵列的初始偏置需要VO2的滞后曲线的基础。 (2)&(3)VO2沉积在热电阵列上,该热电阵列可以是p和n型材料的掺杂线阵列或两个电触点之间的导电材料。像素具有加热和冷却VO2膜的能力,从而允许阵列以双稳态模式操作。双稳态操作需要外部偏置到VO2的滞后曲线的中心。 (4)VO2薄膜沉积在基板上,该基板与垂直腔面发射激光器阵列隔开一段距离L,用于加热VO2。 |
申请日期 | 1994-04-11 |
专利号 | US5608568 |
专利状态 | 失效 |
申请号 | US08/225847 |
公开(公告)号 | US5608568 |
IPC 分类号 | G02F1/01 | G02F1/19 | H01S5/42 | H01S5/00 |
专利代理人 | - |
代理机构 | COOCH, FRANCIS A. |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/35045 |
专题 | 半导体激光器专利数据库 |
作者单位 | JOHNS HOPKINS UNIVERSITY, THE |
推荐引用方式 GB/T 7714 | BLODGETT, DAVID W.,LANGE, CHARLES H.,MCNALLY, PHILIP J.,et al. Thin film vanadium oxide spatial light modulators and methods. US5608568[P]. 1997-03-04. |
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