Measurement of the transverse electric field profile of light by a self-referencing method with direct phase determination

Bamber, C.; Sutherland, Brandon; Patel, Ashok B.; Stewart, Corey; Lundeen, Jeff S.

doi:10.1364/oe.20.002034

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…In this case, one would need to perform independent weak and strong measurements on each photon, followed by a joint detection scheme for the polarization measurement. It is important to mention that while we have used a quantum description for the direct measurement method, it is perfectly explained using classical wave mechanics [32]. However, the quantum mechanical description is simpler, more elegant, and extendable to systems that do not have a classical description.…”

Section: Discussionmentioning

confidence: 99%

Direct measurement of a 27-dimensional orbital-angular-momentum state vector

et al. 2014

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The measurement of a quantum state poses a unique challenge for experimentalists. Recently, the technique of 'direct measurement' was proposed for characterizing a quantum state in situ through sequential weak and strong measurements. While this method has been used for measuring polarization states, its real potential lies in the measurement of states with a large dimensionality. Here we show the practical direct measurement of a highdimensional state vector in the discrete basis of orbital angular momentum. Through weak measurements of orbital angular momentum and strong measurements of angular position, we measure the complex probability amplitudes of a pure state with a dimensionality, d ¼ 27. Further, we use our method to directly observe the relationship between rotations of a state vector and the relative phase between its orbital-angular-momentum components. Our technique has important applications in high-dimensional classical and quantum information systems and can be extended to characterize other types of large quantum states.

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Section: Discussionmentioning

confidence: 99%

Direct measurement of a 27-dimensional orbital-angular-momentum state vector

et al. 2014

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“…Various methods for recovering complex fields exist in the scientific literature, including the use of the Shack-Hartmann wavefront sensor [14], as well as newer methods for phase reconstruction using selfreferencing [15], multiple-beam interferometry [16], and parallel-planes imaging [17], all of which could be utilized for measuring the complex output fields E ref;out and E out emanating from the fiber. Various methods for recovering complex fields exist in the scientific literature, including the use of the Shack-Hartmann wavefront sensor [14], as well as newer methods for phase reconstruction using selfreferencing [15], multiple-beam interferometry [16], and parallel-planes imaging [17], all of which could be utilized for measuring the complex output fields E ref;out and E out emanating from the fiber.…”

Section: Measuring Output Fieldsmentioning

confidence: 99%

Image transmission through an optical fiber using real-time modal phase restoration

Fertman

Yelin

2012

J. Opt. Soc. Am. B

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Theoretical analysis of a method for transmitting a complex image field through a single multimode optical fiber is presented. Using a known reference image, we show that it would be possible to evaluate the instantaneous modal dispersion of the fiber and use the knowledge of accumulated modal phases to recover the object field. For measuring the complex object and reference fields emanating from the fiber, we propose using a simple arrangement of two cameras for recording the intensity and Fourier images, followed by a modified Gerchberg-Saxton algorithm for full complex field reconstruction. While some experimental challenges could still be expected in any future implementation of this approach, we believe it would eventually allow the first image transmission through a long, multimode optical fiber.

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“…[9,10]). In linear optics, Lundeen and Bamber [10,11] established and demonstrated the relation between weak measurements and the spatial intensity distribution of a single-photon signal, which can be associated with the spatial wavefunction of a single-photon. However, the very definition of the spatial photon wavefunction is vague, due to the impossibility of localizing massless spin 1 particles, as pointed out by Newton and Wigner [12].…”

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confidence: 99%

Visualizing the emission of a single photon with frequency and time resolved spectroscopy

Sharafiev,

Juan,

Gargiulo

et al. 2020

Preprint

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The quantum wavefunction, despite continuous debates on its exact physical interpretation [1-5], is a fundamental concept in quantum physics and a useful tool to describe and simulate the state of a quantum system. While wavefunctions usually are not considered to be directly observable, in this work we show how the wavefunction of a single photon can be directly visualised in frequency and time domain.

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Measurement of the transverse electric field profile of light by a self-referencing method with direct phase determination

Cited by 8 publications

References 10 publications

Direct measurement of a 27-dimensional orbital-angular-momentum state vector

Direct measurement of a 27-dimensional orbital-angular-momentum state vector

Image transmission through an optical fiber using real-time modal phase restoration

Visualizing the emission of a single photon with frequency and time resolved spectroscopy

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