Resolution in rotation measurements
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TLDR
In this paper, the problem of measuring the rotation of a beam of light about an optical axis is considered and the limiting resolution depends on the total number of quanta of orbital angular momentum carried by the light beam.Abstract:
The limiting resolution in optical interferometry is set by the number of photons used, with the functional dependence determined by the state of light that is prepared. We consider the problem of measuring the rotation of a beam of light about an optical axis and show how the limiting resolution depends on the total number of quanta of orbital angular momentum carried by the light beam.read more
Citations
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The Quantum Theory of Light
TL;DR: In this article, the time dependence of ρ11, ρ22 and ρ12 under steady-state conditions was analyzed under a light field interaction V = -μ12Ee iωt + c.c.
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Detection of a Spinning Object Using Light’s Orbital Angular Momentum
TL;DR: Using twisted light, Lavery et al. detected rotation with an analogous angular Doppler shift, which may be useful for remote sensing and observational astronomy, and the multiplicative enhancement of the frequency shift may have applications for the remote detection of rotating bodies in both terrestrial and astronomical settings.
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Photonic polarization gears for ultra-sensitive angular measurements
Vincenzo D'Ambrosio,Nicolò Spagnolo,Lorenzo Del Re,Sergei Slussarenko,Ying Li,Leong Chuan Kwek,Leong Chuan Kwek,Lorenzo Marrucci,Stephen P. Walborn,Leandro Aolita,Fabio Sciarrino +10 more
TL;DR: NoON-like photonic states of m quanta of angular momentum up to m=100 are demonstrated, in a setup that acts as a ‘photonic gear’, converting, for each photon, a mechanical rotation of an angle θ into an amplified rotation of the optical polarization by mθ, corresponding to a ’super-resolving’ Malus’ law.
Journal ArticleDOI
Quasi-intrinsic angular momentum and the measurement of its spectrum.
TL;DR: The concept of quasi-intrinsic angular momentum is introduced to denote fields for which the mean value of theangular momentum is unaltered by a lateral shift of the rotation axis but the spectrum changes.
References
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Handbook of Mathematical Functions
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Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes.
TL;DR: Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum and an astigmatic optical system may be used to transform a high-order LaguERre- Gaussian mode into aHigh-order Hermite-Gaussia mode reversibly.
Book
The quantum theory of light
TL;DR: In this paper, the Planck's radiation law and the Einstein coefficients were used to describe the atom-radiation interaction and the quantum mechanics of optical fluctuations and coherence, respectively.
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Quantum Mechanical Noise in an Interferometer
TL;DR: In this article, the authors proposed a new technique, the squeezed-state technique, that allows one to decrease the photon-counting error while increasing the radiation pressure error, or vice versa.
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Quantum-enhanced measurements: beating the standard quantum limit.
TL;DR: This work has shown that conventional bounds to the precision of measurements such as the shot noise limit or the standard quantum limit are not as fundamental as the Heisenberg limits and can be beaten using quantum strategies that employ “quantum tricks” such as squeezing and entanglement.