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Journal of Physics Conference Series

Demonstrations of scalable photonic de Broglie wavelengths using a phase-controlled SLM

Byoung Seung HAM

Published Jul 1, 2026• 0 citations
Publisher

Abstract

Abstract A conceptual framework for a quantum spectrometer is presented based on phase-controlled spatial light modulators (SLMs) and polarization-basis projection measurements, in which each SLM pixel functions as a macroscopic quantum eraser. Recently, macroscopic quantum erasers have been proposed and experimentally demonstrated using both single photons and continuous-wave laser light in the classical regime. Polarization-basis projection measurements, which are essential for realizing quantum erasers, are also widely employed in N00N-state-based quantum sensing. In this work, a pair of SLMs replaces bulky optical components, forming a pixelated array that enables precise polarization-basis control of quantum erasers. For potential applications of the SLM-based quantum spectrometer, intensity correlations between paired SLM pixels are numerically calculated, demonstrating resolution enhancement proportional to the number of pixels and surpassing that of conventional optical sensors.

DOI
10.1088/1742-6596/3285/1/012001

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Abstract A conceptual framework for a quantum spectrometer is presented based on phase-controlled spatial light modulators (SLMs) and polarization-basis projection measurements, in which each SLM pixel functions as a macroscopic quantum eraser. Recently, macroscopic quantum erasers have been proposed and experimentally demonstrated using both single photons and continuous-wave laser light in the classical regime. Polarization-basis projection measurements, which are essential for realizing quantum erasers, are also widely employed in N00N-state-based quantum sensing. In this work, a pair of SLMs replaces bulky optical components, forming a pixelated array that enables precise polarization-basis control of quantum erasers. For potential applications of the SLM-based quantum spectrometer, intensity correlations between paired SLM pixels are numerically calculated, demonstrating resolution enhancement proportional to the number of pixels and surpassing that of conventional optical sensors.
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Abstract Recently, the delayed-choice quantum eraser has been applied for coherently excited superresolution using phase-controlled projection measurements of laser light to overcome the diffraction limit in classical physics as well as to solve the limited photon number of the N00N state in quantum physics. Unlike other methods of phase-controlled superresolution in a noninterferometric system, the proposed method is for the intensity products between phase-controlled quantum erasers, resulting in superresolution compatible with the most conventional sensing metrologies. Here, a general scheme of the phase-controlled quantum eraser-based superresolution is proposed and its general solution is derived for an arbitrary Nth-order intensity correlation, where the superresolution shows the photonic de Broglie wave-like quantum feature. Furthermore, phase quantization of the superresolution is discussed to better understand quantum mechanics.
Recently, the delayed-choice quantum eraser has been applied for coherently excited superresolution using phase-controlled projection measurements of laser light to overcome the diffraction limit in classical physics as well as to solve the limited photon number of the N00N state in quantum physics. Unlike other methods of phase-controlled superresolution in a noninterferometric system, the proposed method is for the intensity products between phase-controlled quantum erasers, resulting in superresolution compatible with the most conventional sensing metrologies. Here, a general scheme of the phase-controlled quantum eraser-based superresolution is proposed and its general solution is derived for an arbitrary Nth-order intensity correlation, where the superresolution shows the photonic de Broglie wave-like quantum feature. Furthermore, phase quantization of the superresolution is discussed to better understand quantum mechanics.
Recently, the delayed-choice quantum eraser has been applied for coherently excited superresolution using phase-controlled projection measurements of laser light to overcome the diffraction limit in classical physics as well as to solve the limited order N of the N00N state in quantum physics. Here, a general scheme of the phase-controlled quantum eraser-based superresolution is proposed for quantum sensing satisfying the Heisenberg limit, and its general solution is derived for an arbitrary Nth-order intensity correlation. Furthermore, phase quantization of the proposed superresolution is discussed to better understand the wave nature of quantum mechanics. Unlike other methods of superresolution in quantum sensing, the proposed method is for the intensity products between phase-controlled quantum erasers and thus is compatible with most conventional sensing metrologies.
Rapid and programmable shaping of light fields is central to modern microscopy, display technologies, optical communications and sensing, quantum engineering, and quantum information processing. Current wavefront shaping technologies face a fundamental dichotomy: liquid-crystal-on-silicon spatial light modulators (LCoS-SLMs) offer high pixel count but suffer from low refresh rates, while acousto-optic deflectors (AODs) provide moderate speed with restricted optical beam geometries. Though recent advances in photonic integrated circuits achieve fast switching, there is currently no tool that provides MHz-rate, continuous motion, and arbitrarily reconfigurable control over a set of diffraction-limited spots. Here we introduce a new class of spatial light modulator that provides both 2D pixel geometry and high speed. The device operates by encoding spatial information in frequency bins via a broadband optical phase modulator, and decoding them via a first-of-its-kind, high-resolution 2D spectrometer. The spectrometer, based on the architecture which we call the Re-Imaging Phased Array (RIPA), achieves its sensitivity through long path-lengths, enabled by intra-spectrometer re-imaging lens-guides. We demonstrate site-resolved optical pulsing with a 44(1)~ns rise time, corresponding to frame rates exceeding 10 million frames per second, as well as arbitrary, reconfigurable 2D addressing and multi-site operations, including asynchronous, independent beam motion, splitting, and recombination. Leveraging these tools opens new horizons in rapid optical manipulation of matter across science, from fast, scalable control that approaches the inertial and radiation limits of atoms in quantum processors, to dynamically programmable, microsecond-resolved illumination in microscopy and neuro-biological imaging.
The delayed-choice quantum eraser has been intensively studied for the wave-particle duality of a single photon in an interferometric system over the last decades. Super-resolution has been studied over decades for quantum sensing to overcome the standard quantum limit. For the super-resolution, either quantum features of higher-order entangled photon pairs or classical features of phase-controlled coherent photons have been successfully demonstrated. Here, a method of classically excited super-resolution is presented for the phase-controlled coherent photons in a quarter-wave plate-modified quantum eraser scheme. To support the underlying physics of the super-resolution, nonlocal correlation is also presented with an additional frequency-polarization basis control via selective product-basis measurements.