Light-in-flight imaging explained

Light-in-flight imaging — a set of techniques to visualize propagation of light through different media.

History and techniques

Light was first captured in its flight by N. Abramson in 1978,[1] who used a holographic technique to record the wavefront of a pulse propagating and being scattered by a white-painted screen placed in its path. This high-speed recording technique allowed the dynamic observation of light phenomena like reflection, interference and focusing that are normally observed statically.[2] [3] More recently, light-in-flight holography has been performed in a scattering medium rather than using a reflective screen.[4] [5] Light can also be captured in motion in a scattering medium using a streak camera that has picosecond temporal resolution, thus removing the need for interferometry and coherent illumination but requires additional hardware to raster scan the two-dimensional (2D) scene, which increases the acquisition time to hours.[6] [7] A few other techniques possess the temporal resolution to observe light in motion as it illuminates a scene, such as photonic mixer devices based on modulated illumination, albeit with a temporal resolution limited to a few nanoseconds.[8] Alternatively, time-encoded amplified imaging can record images at the repetition rate of a laser by exploiting wavelength-encoded illumination of a scene and amplified detection through a dispersive fibre, albeit with 160 ns temporal and spatial resolution.[9] Recent studies based on computer tomography using data from multiple probe pulses enabled reconstruction of picosecond pulse propagation phenomena in condensed media.[10] In 2015 a method to visualize events evolving on picosecond time scales based on single-photon detector arrays has been demonstrated.[11]

See also

References

  1. Abramson . Nils . Light-in-flight recording by holography . Optics Letters . The Optical Society . 3 . 4 . 1978-10-01 . 0146-9592 . 10.1364/ol.3.000121 . 121–123.
  2. Abramson . Nils . Light-in-flight recording: high-speed holographic motion pictures of ultrafast phenomena . Applied Optics . The Optical Society . 22 . 2 . 1983-01-15 . 0003-6935 . 10.1364/ao.22.000215 . 215–232.
  3. Abramson . Nils H. . Spears . Kenneth G. . Single pulse light-in-flight recording by holography . Applied Optics . The Optical Society . 28 . 10 . 1989-05-15 . 0003-6935 . 10.1364/ao.28.001834 . 1834–1841.
  4. Häusler . G. . Herrmann . J. M. . Kummer . R. . Lindner . M. W. . Observation of light propagation in volume scatterers with 10^11-fold slow motion . Optics Letters . The Optical Society . 21 . 14 . 1996-07-15 . 0146-9592 . 10.1364/ol.21.001087 . 1087–1089.
  5. Kubota . Toshihiro . Komai . Kazunari . Yamagiwa . Masatomo . Awatsuji . Yasuhiro . Moving picture recording and observation of three-dimensional image of femtosecond light pulse propagation . Optics Express . The Optical Society . 15 . 22 . 2007-10-16 . 1094-4087 . 10.1364/oe.15.014348 . 14348–14354. free.
  6. Velten, A. et al. Femto-photography: capturing and visualizing the propagation of light. ACM Trans. Graph 32, 44:1–44:8 (2013).
  7. Velten . Andreas . Lawson . Everett . Bardagjy . Andrew . Bawendi . Moungi . Raskar . Ramesh . Slow art with a trillion frames per second camera . Proceedings of SIGGRAPH. 44. ACM Press . New York, New York, USA . 2011 . 10.1145/2037715.2037730 .
  8. Heide, F., Hullin, M. B., Gregson, J. & Heidrich, W. Low-budget transient imaging using photonic mixer devices. ACM Trans. Graph 32, 45:1–45:10 (2013).
  9. Goda . K. . Tsia . K. K. . Jalali . B. . Serial time-encoded amplified imaging for real-time observation of fast dynamic phenomena . Nature . Springer Science and Business Media LLC . 458 . 7242 . 2009 . 0028-0836 . 10.1038/nature07980 . 1145–1149.
  10. Li . Zhengyan . Zgadzaj . Rafal . Wang . Xiaoming . Chang . Yen-Yu . Downer . Michael C. . Single-shot tomographic movies of evolving light-velocity objects . Nature Communications . Springer Science and Business Media LLC . 5 . 1 . 2014-01-22 . 2041-1723 . 10.1038/ncomms4085 . 3085. free. 3921466 .
  11. Gariepy . Genevieve . Krstajić . Nikola . Henderson . Robert . Li . Chunyong . Thomson . Robert R. . Buller . Gerald S. . Heshmat . Barmak . Raskar . Ramesh . Leach . Jonathan . Faccio . Daniele . Single-photon sensitive light-in-fight imaging . Nature Communications . Springer Science and Business Media LLC . 6 . 1 . 2015-01-27 . 2041-1723 . 10.1038/ncomms7021 . 6021. free. 1721.1/96779 . free .

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