2017/08/31 by Chao Deng, Yuwang Wang, Jinli Suo +2 · 28 citations
Engineering · Physics and Astronomy · #Broadband #Digital Holography and Microscopy #Ghost imaging #Imaging spectrometer #Multiplexing #Near-Field Optical Microscopy #Optical imaging #Photon #Random lasers and scattering media #Scalability #Spectral imaging #Thermal #physics.optics
paper · pdf · doi:10.1063/1.5001750
published in Applied Physics Letters 112(5) (American Institute of Physics) · 10 pages, 4 figures
openalex created_date 2017/08/17 · openalex publication_date 2018/01/29 · arxiv created 2018/04/11 · arxiv updated 2018/04/12 · openalex updated_date 2026/08/05
Ghost imaging (GI) is an emerging technique that reconstructs the target scene from its correlated measurements with a sequence of patterns. Restricted by the multi-shot principle, GI usually requires long acquisition time and is limited in observation of dynamic scenes. To handle this problem, this paper proposes a single-shot thermal ghost imaging scheme via a wavelength-division multiplexing technique. Specifically, we generate thousands of correlated patterns simultaneously by modulating a broadband light source with a wavelength dependent diffuser. These patterns carry the scene's spatial information and then the correlated photons are coupled into a spectrometer for the final reconstruction. This technique increases the speed of ghost imaging and promotes the applications in dynamic ghost imaging with high scalability and compatibility.