Reference-Free Single-Point Holographic Imaging and Realization of an Optical Bidirectional Transducer

Abstract

One of the fundamental limitations in photonics is the lack of a bidirectional transducer that can convert optical information into electronic signals or vice versa. In acoustics or at microwave frequencies, wave signals can be simultaneously measured and modulated by a single transducer. In optics, however, optical fields are generally measured via reference-based interferometry or holography using silicone-based image sensors, whereas they are modulated using spatial light modulators. Here, we propose a scheme for an optical bidirectional transducer using a spatial light modulator. By exploiting the principle of time-reversal symmetry of light scattering, two-dimensional reference-free measurement and modulation of optical fields are realized. We experimentally demonstrate the optical bidirectional transducer for optical information consisting of 128 x 128 spatial modes at visible and short-wave infrared wavelengths.

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Cited by in corpus (3)

• Reference-free polarization-sensitive quantitative phase imaging using singe-point optical phase conjugation
• High-resolution long-working-distance reference-free holographic microscopy exploiting speckle-correlation scattering matrix
• Complex-amplitude Fourier single-pixel imaging via coherent structured illumination