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Wide-field-of-view polarization interference imaging spectrometer (WPIIS) is one kind of birefringent interferometers utilized for imaging and spectroscopy. WPIIS employs polarization components (the polarizer, analyzer, the field-widened Savart polariscope and an achromatic half wave plate (AHWP) sandwiched between the two Savart plates) for interferogram acquisition. To acquire excellent reconstructed...
A recent experiment performed by Afshar et al. has been interpreted as a violation of Bohr's complementarity principle between interference visibility and which-path information a two-path interferometer. The authors have reproduced the same experiment, using true single-photon pulses emitted by a single nitrogen-vacancy (NV) color center in a diamond crystal and propagating in a two-path wavefront-splitting...
A novel tunable polarization-dependent-loss (PDL) element is realized using two rotatable birefringent prisms and a half-wave plate. The design is favorable for interferometric stability and is operable over a wide wavelength range. The PDL can be tuned from 0 to 35 dB for a wavelength of 780 nm. An interference visibility of 0.98 between the two principal polarizations for 0-dB loss is achieved by...
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