Transport of intensity equation: a tutorial

When it comes to “phase measurement” or “quantitative phase imaging”, many people will automatically connect them with “laser” and “interferometry”. Indeed, conventional quantitative phase imaging and phase measurement techniques generally rely on the superposition of two beams with a high degree of coherence: complex interferometric configurations, stringent requirements on the environmental stabilities, and associated laser speckle noise severely limit their applications in optical imaging and microscopy. On a different note, as one of the most well-known phase retrieval approaches, the transport of intensity equation (TIE) provides a new non-interferometric way to access quantitative phase information…

• NN
  National Natural Science Foundation of China

  Award: 61722506
• NU
  Nanjing University of Science and Technology
• JP
  Jiangsu Provincial Key Research and Development Program

  Award: BE2017162
• FR
  Fundamental Research Funds for the Central Universities

  Award: 30920032101