Snapshot spectrally resolved longitudinal spatial coherence interferometry
作者: Ethan R. WoodardMichael W. Kudenov
作者单位: 1North Carolina State University
刊名: Optical Engineering, 2017, Vol.56 (6), pp.064104-064104
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.56.6.064104
关键词: longitudinal spatial coherenceinterferometryinterferometric imagingchanneled spectrum
原始语种摘要: We present a one-dimensional (1-D) imaging technique that uses longitudinal spatial coherence interferometry to encode a scene’s spatial information onto the source’s power spectrum. By spectrally resolving the output using a spectrometer, a channeled spectrum is measured. Fourier transformation of the channeled spectrum yields a measurement of the incident scene’s angular spectrum. The theory is presented to exhibit analogies to conventional Fourier transform spectroscopy of the power spectrum. Experimental validation of the technique is demonstrated, using a Fabry–Perot etalon, for the reconstruction of 1-D sinusoidal and randomly generated angular spectra. Root mean square error between the input and output angular spectra is demonstrated, on average, to be 12.7% and 13.6% for...
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  • coherence 相干性
  • spatial 空间的
  • longitudinal 纵向的
  • interferometry 干涉量度法
  • scene 景物
  • technique 技术
  • randomly 任意地
  • reconstruction 复原
  • encode 编成密码
  • transformation 变换