Continuous-wave terahertz digital holographic tomography with a pyroelectric array detector
作者: Bin LiDayong WangXun ZhouLu RongZeyu LiLei LiWan MinHaochong HuangYunxin Wang
作者单位: 1Beijing University of Technology
2Research Center of Laser Fusion
3Microsystem and Terahertz Research Center
刊名: Optical Engineering, 2016, Vol.55 (5), pp.053106-053106
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.55.5.053106
关键词: terahertz imagingtomographydigital holographyarrays
原始语种摘要: Terahertz computed tomography makes use of the penetrability of terahertz radiation and obtains three-dimensional (3-D) object projection data. Continuous-wave terahertz digital holographic tomography with a pyroelectric array detector is presented. Compared with scanning terahertz computed tomography, a pyroelectric array detector can obtain a large quantity of projection data in a short time. To obtain a 3-D image, in-line digital holograms of the object are recorded from various directions and reconstructed to obtain two-dimensional (2-D) projection data; then 2-D cross-sectional images and 3-D images of the internal structure of the object are obtained by the filtered back projection algorithm. The presented system can rapidly reconstruct the 3-D object and reveals the internal 3-D...
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关键词翻译
关键词翻译
  • detector 探测器检波器
  • digital 数字的
  • tomography 断层x 线摄影
  • pyroelectric 热电物质
  • projection 投射
  • reconstructed 修]重构[建
  • array 阵列
  • reconstruction 复原
  • object 目标
  • directions 指示