Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Frontiers in Optics

Holographic Reconstruction of Single Photon Spatial Wavefunction

Michał Jachura, Radosław Chrapkiewicz, Konrad Banaszek, Wojciech Wasilewski

Published Jan 1, 2016• 0 citations
Publisher

Abstract

We experimentally show that the complex transversal wavefunction of the unknown photon can be fully recovered from the spatially-resolved coincidence pattern resulting from its two-photon interference with the reference photon.
DOI
10.1364/fio.2016.ff3c.2

Related papers

Hologram of a single photon

Michał Jachura, Radosław Chrapkiewicz, Konrad Banaszek +1 more

We experimentally show that the complex transversal wavefunction of the unknown photon can be fully recovered from the spatially-resolved coincidence pattern resulting from its two-photon interference with the reference photon.

Quantum Information and Measurement (QIM)•Jan 1, 2017•5 citations

Self-referenced hologram of a single photon beam

Wiktor Szadowiak, Sanjukta Kundu, Jerzy Szuniewicz +1 more

Quantitative characterization of the spatial structure of single photons is essential for free-space quantum communication and quantum imaging. We introduce an interferometric technique that enables the complete characterization of a two-dimensional probability amplitude of a single photon. Importantly, in contrast to methods that use a reference photon for the phase measurement, our technique relies on a single photon interfering with itself. Our setup comprises of a heralded single-photon source with an unknown spatial phase and a modified Mach-Zehnder interferometer with a spatial filter in one of its arms. The spatial filter removes the unknown spatial phase and the filtered beam interferes with the unaltered beam passing through the other arm of the interferometer. We experimentally confirm the feasibility of our technique by reconstructing the spatial phase of heralded single photons using the lowest order interference fringes. This technique can be applied to the characterization of arbitrary pure spatial states of single photons.

arXiv:2006.02580•Quantum•Aug 3, 2021•4 citations

Restoring sub-shot noise phase sensitivity in a realistic two-photon interferometry

Michał Jachura, Radosław Chrapkiewicz, Rafał Demkowicz-Dobrzański +2 more

We demonstrate experimentally that a careful design of the spatial structure of interfered photons, combined with position-resolved coincidence detection, allows to recover sub-shot-noise phase sensitivity in regime that otherwise cannot even attain the shot-noise limit.

Frontiers in Optics•Jan 1, 2015•0 citations

Multiphoton interference of distinguishable photons based on photonic inner mode structure.

Juan Camilo Alarcon, Miguel Villalobos, Andrés Camilo Quintero +1 more

Two photon interference in transverse momentum variables is presented via spatially resolved correlation measurements. Interest is devoted to study theoretically and experimentally the interference when the input photons are distinguishable in their spatial variables.

Latin America Optics and Photonics Conference•Jan 1, 2022•0 citations

Holographic measurement of single photon spatial wavefunction

Michał Jachura, Radosław Chrapkiewicz, Konrad Banaszek +1 more

Summary form only given. The spatial structure of a photon has proved to be indispensable resource allowing the experimental realization of free-space quantum cryptography or high dimensional entanglement. Although efficient methods for manipulating spatial characteristic of individual photons can be easily transferred from the field of classical optics, their spatial structure cannot be measured using the standard interferometric reference-based methods such as optical holography due to their completely undefined-global phase. Hence, the full recovery of a transverse photon wavefunction still remains a challenging task tackled so far exclusively using indirect methods such as the quantum tomography [1] and weak values measurements [2].Here we present and experimentally demonstrate a different approach based on spatially resolved detection of two-photon interference [3,4]. Although such measurements are usually perceived to be insensitive to the relative phase between two interfering photons we show that rarely considered local phase dependence can be still observed and utilized for direct recovery of a single photon quantum wavefunction. In particular we experimentally show that the complex transversal wavefunction of the unknown photon can be fully recovered from the 2D spatial coincidence pattern resulting from its two-photon interference with the reference photon [5].

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2017•0 citations

Self-referenced hologram of a single photon beam

Wiktor Szadowiak, Sanjukta Kundu, Jerzy Szuniewicz +1 more

We introduce and experimentally demonstrate a self-referenced interferometric technique which enables complete characterization of an arbitrary 2D spatial structure of a single photon relying on the fact that a single photon can interfere with itself.

The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting•Jan 1, 2019•1 citation
Quantitative characterization of the spatial structure of single photons is essential for free-space quantum communication and quantum imaging. We introduce an interferometric technique that enables the complete characterization of a two-dimensional probability amplitude of a single photon. Importantly, in contrast to methods that use a reference photon for the phase measurement, our technique relies on a single photon interfering with itself. Our setup comprises of a heralded single-photon source with an unknown spatial phase and a modified Mach-Zehnder interferometer with a spatial filter in one of its arms. The spatial filter removes the unknown spatial phase and the filtered beam interferes with the unaltered beam passing through the other arm of the interferometer. We experimentally confirm the feasibility of our technique by reconstructing the spatial phase of heralded single photons using the lowest order interference fringes. This technique can be applied to the characterization of arbitrary pure spatial states of single photons.
Summary form only given. The spatial structure of a photon has proved to be indispensable resource allowing the experimental realization of free-space quantum cryptography or high dimensional entanglement. Although efficient methods for manipulating spatial characteristic of individual photons can be easily transferred from the field of classical optics, their spatial structure cannot be measured using the standard interferometric reference-based methods such as optical holography due to their completely undefined-global phase. Hence, the full recovery of a transverse photon wavefunction still remains a challenging task tackled so far exclusively using indirect methods such as the quantum tomography [1] and weak values measurements [2].Here we present and experimentally demonstrate a different approach based on spatially resolved detection of two-photon interference [3,4]. Although such measurements are usually perceived to be insensitive to the relative phase between two interfering photons we show that rarely considered local phase dependence can be still observed and utilized for direct recovery of a single photon quantum wavefunction. In particular we experimentally show that the complex transversal wavefunction of the unknown photon can be fully recovered from the 2D spatial coincidence pattern resulting from its two-photon interference with the reference photon [5].