Modern Aspects of Intensity Interferometry With Classical Light

On the “unreasonable” effectiveness of transport of intensity imaging and optical deconvolution

“…(1)- (3) is defined in terms of the correlation of light irradiance at different spatial positions, a situation which has obvious parallels, for example, with the Hanbury Brown -Twiss experiments [13][14][15][16][17][18] and with recent studies in X-ray ghost imaging [19][20][21][22]. Note also that, due to our choice of variables in eq.…”

Towards a practical implementation of X-ray ghost imaging with synchrotron light

“…Ghost imaging [1][2][3] was first proposed [4,5] and then experimentally achieved [6,7] in visible-light quantum optics. It utilizes intensity correlations between (i) spatially resolved photons which never pass through a sample of interest and (ii) non-spatially resolved photons that do pass through the sample.…”

“…Ghost imaging has several particularly attractive features: (i) In its computational-imaging variant [11,17,18], ghost imaging permits images of an object to be formed without any position-sensitive detectors whatsoever. Radiation is only detected using a large one-pixel "bucket detector", with the illuminating intensity patterns being known and therefore not needing to be measured [3,11,12,18]. This may permit fuller utilisation of all radiation scattered by a sample of interest, via multiple buckets.…”

Partial coherence in modern optics: Emil Wolf's legacy in the 21st century

“…Another approach, beyond the linear optics regime, is based on SPDC and two-photon interferometry, and has shown the potential to have still higher sensitivities and two-fold enhanced depth resolutions. Moreover, a cancellation of dispersion can be achieved [29]. Additional Functional OCT techniques include polarizationsensitive OCT, where differences in the polarization state of the emerging light allows for the discrimination of different types of tissues [22].…”