Abstract

We propose and experimentally demonstrate high-speed single-pixel imaging by integrating frequency-division multiplexing and time-division multiplexing (techniques used widely in telecommunications) and applying the combined technique, namely, frequency-time-division multiplexing (FTDM), to optical imaging. Specifically, FTDM single-pixel imaging uses an array of broadband, spatially distributed, dual-frequency combs (i.e., spatial dual combs) for multidimensional illumination and detects an image-encoded time-domain signal with a single-pixel photodetector in a FTDM manner. As a proof-of-principle demonstration, we use the method to show ultrafast two-color (bright-field and fluorescence) single-pixel microscopy of breast cancer cells at a high frame rate of 32,000 fps and ultrafast image velocimetry of fluorescent particles flowing at a high speed of ${ \gt }{2}\;{\rm m/s}$.

© 2020 Optical Society of America

Simple, stable, compact implementation of frequency-division-multiplexed microscopy by inline interferometry

Hiroshi Kanno, Hideharu Mikami, Yasin Kaya, Yasuyuki Ozeki, and Keisuke Goda
Opt. Lett. 44(3) 467-470 (2019)

Frequency-division-multiplexed single-pixel imaging with metamaterials

Claire M. Watts, Christian C. Nadell, John Montoya, Sanjay Krishna, and Willie J. Padilla
Optica 3(2) 133-138 (2016)

Fast hyperspectral single-pixel imaging via frequency-division multiplexed illumination

Xiaoyuan Jiang, Ziwei Li, Gang Du, Junlian Jia, Qinghua Wang, Nan Chi, and Qionghai Dai
Opt. Express 30(15) 25995-26005 (2022)

AI-enabled real-time dual-comb molecular fingerprint imaging

Thibault Voumard, Thibault Wildi, Victor Brasch, Raúl Gutiérrez Álvarez, Germán Vergara Ogando, and Tobias Herr
Opt. Lett. 45(24) 6583-6586 (2020)

Image-free real-time 3-D tracking of a fast-moving object using dual-pixel detection

Qiwen Deng, Zibang Zhang, and Jingang Zhong
Opt. Lett. 45(17) 4734-4737 (2020)