Quantum ellipsometry

Abstract

wavelength of the constituent photons. Furthermore, our rerultr demonstrate the proof-of-principle of the quantum lithography that utilizes the multiphoton state to optical lithography beyond the classical diffraction limit.' It is also noteworthy that the one-photon interference of the SPDC exhibits no modulatian,whereas that of the tungsten lamp exhibits normal one-photon interference. Since it can be explained only by the quantum-mechanical treatment assuming that each photon pair passes together through one of the grating slits, this result also represents the nonclassical nature of the par&"ic down.com. verted biphotons.

Quantum Polarimetry

“…Ellipsometry typically focuses on determining a specific pair of polarization parameters, namely the ratio between two reflection or transmission components and the difference between two phase shifts, which can be cast as the ratio between two diattenuation parameters (1 − 𝑞) /(1 − 𝑟) or 𝑞/𝑟 and a rotation angle about the e 3 axis. This has been studied from a few quantum perspectives (Abouraddy et al, 2001(Abouraddy et al, , 2002Graham et al, 2006;Rudnicki et al, 2020;Toussaint et al, 2002Toussaint et al, , 2004Wang and Agarwal, 2021) that we review here. First, one can show that particular quantum states, such as entangled photon pairs, can be used for measuring these two parameters (Abouraddy et al, 2001(Abouraddy et al, , 2002Graham et al, 2006;Toussaint et al, 2002, It is still possible to approach the lower bound in some parameter regimes (Albarelli et al, 2019).…”

“…This has been studied from a few quantum perspectives (Abouraddy et al, 2001(Abouraddy et al, , 2002Graham et al, 2006;Rudnicki et al, 2020;Toussaint et al, 2002Toussaint et al, , 2004Wang and Agarwal, 2021) that we review here. First, one can show that particular quantum states, such as entangled photon pairs, can be used for measuring these two parameters (Abouraddy et al, 2001(Abouraddy et al, , 2002Graham et al, 2006;Toussaint et al, 2002, It is still possible to approach the lower bound in some parameter regimes (Albarelli et al, 2019). Reflection ellipsometry often singles out two linear polarization components while transmission ellipsometry prefers circular components; the mathematics for both are identical and the physical scenarios can be interconverted using waveplates.…”