Two-mode simultaneous measurement of the light phase difference and the polarization states for quantum optical field

Author(s):  
Alexander P. Alodjants ◽  
Sergei M. Arakelian
Author(s):  
Andre Vatarescu

The quantum Rayleigh spontaneous emission replaces entangled photons with independent ones in homogeneous dielectric media where single photons cannot propagate in a straight line. Single and independent groups of photons, described by the original bare states of Jaynes-Cummings model, deliver the correct expectation values for the number of photons carried by a photonic wavefront, its complex optical field, and phase quadratures. The intrinsic longitudinal field profile associated with a photonic wavefront is derived for any instantaneous number of photons. These photonic properties enable a step-by-step analysis of various beam splitters and interferometric filters. As a result, generalized expressions are derived for the correlation functions characterizing counting of coincident numbers of photons for fourth-order interference, whether classical or quantum optical, without entangled photons.


2021 ◽  
Vol 104 (20) ◽  
Author(s):  
K. Jürgens ◽  
F. Lengers ◽  
D. Groll ◽  
D. E. Reiter ◽  
D. Wigger ◽  
...  

Open Physics ◽  
2012 ◽  
Vol 10 (2) ◽  
Author(s):  
Lukasz Michalik ◽  
Andrzej Domanski

AbstractWe focus on a comparison between the classical and quantum descriptions of the degree of polarization of an optical field. A quantum field containing photons with various states of polarization and which propagate in the same direction in free space one after another (a so called photon beam) is analyzed. We show that the formulated definition of degree of polarization for this quantum field leads to a measurable quantity. The concept of a thought experiment is presented.


2016 ◽  
Vol 24 (24) ◽  
pp. 28143 ◽  
Author(s):  
Rui-Pin Chen ◽  
Khian-Hooi Chew ◽  
Guoquan Zhou ◽  
Chao-Qing Dai ◽  
Sailing He

2006 ◽  
Vol 3-4 ◽  
pp. 223-228 ◽  
Author(s):  
S. Okazawa ◽  
Motoharu Fujigaki ◽  
Yoshiharu Morimoto ◽  
Toru Matui

In this paper, we apply phase-shifting digital holographic interferometry to simultaneous measurement for out-of-plane and in-plane displacements by employing two beam illuminations for an object. Phase-shifted holograms before and after displacements of the object using each of two beams are recorded by a CCD camera, separately. The complex amplitude at each pixel of the CCD plane is analyzed from the holograms taken with phase-shifting. The complex amplitude of he object is reconstructed from the complex amplitude distribution on the CCD plane using the Fresnel diffraction integral. Each directional phase difference distribution is obtained by calculating the phases before and after deformation for each directional beam. The phase distribution for out-of-plane displacements is obtained by calculating the sum of the two phase difference distributions. The phase distribution for in-plane displacements is obtained by calculating the difference of the two phase difference distributions. The phase values provide accurate displacement distribution information. Actually, when the object deforms in both out-of-plane and in-plane directions, it is possible to analyze the displacement distribution in each direction. The theory and an experiment are shown.


Nanophotonics ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 635-641 ◽  
Author(s):  
Basudeb Sain ◽  
Roy Kaner ◽  
Yaara Bondy ◽  
Yehiam Prior

AbstractWe report measurements of the optical transmission through a plasmonic flat surface interferometer. The transmission spectrum shows Fabry-Perot-like modes, where for each mode order, the maximal transmission occurs at a gap that grows linearly with wavelength, giving the appearance of diagonal dependence on gap and wavelength. The experimental results are supported by numerical solutions of the wave equations and by a simplified theoretical model that is based on the coupling between localized and propagating surface plasmon. This work explains not only the appearance of the modes but also their sharp dependence on the gap, taking into consideration the refractive indices of the surrounding media. The transmission spectra provide information about the phase difference between the light impinging on the two cavities, enabling interferometric measurement of the light phase by transmission through the coupled plasmonic cavities. The 1° phase-difference resolution is obtained without any propagation distance, thus making this interferometer suitable for on-chip operation.


2015 ◽  
Vol 17 (6) ◽  
pp. 065605 ◽  
Author(s):  
Rui-Pin Chen ◽  
Li-Xin Zhong ◽  
Khian-Hooi Chew ◽  
Bing Gu ◽  
Guoquan Zhou ◽  
...  

2020 ◽  
Vol 8 (20) ◽  
pp. 6832-6838 ◽  
Author(s):  
Da Teng ◽  
Kai Wang ◽  
Qiongsha Huan ◽  
Weiguang Chen ◽  
Zhe Li

Tunable ultra-deep subwavelength optical field confinement is reported by using a graphene-coated nanowire-loaded silicon nano-rib waveguide.


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