Advanced Photonics, Volume. 6, Issue 5, 056003(2024)
Multiplane quantitative phase imaging using a wavelength-multiplexed diffractive optical processor
Fig. 1. Schematic and working principle of multiplane QPI using a wavelength-multiplexed diffractive processor. Illustration of a wavelength-multiplexed diffractive multiplane QPI processor. The diffractive QPI processor is composed of
Fig. 2. The lateral separation settings of the input objects and the blind testing results of the diffractive multiplane QPI processors. (a) Input volume visualization for six different diffractive designs under different input lateral separation distances (
Fig. 3. Impact of the input lateral separation and the input object thickness on multiplane QPI performance. (a) PCC values of the resulting multiplane QPI measurements with
Fig. 4. Impact of the input axial separation on the output multiplane QPI performance. (a) Average PCC values of the diffractive multiplane QPI processor outputs with different input lateral separation distances (
Fig. 5. Cross-talk analysis of multiplane QPI under different input lateral separation distances. Output image matrix demonstrating the cross talk from one input plane to the output wavelength channels, represented by the off-diagonal images. Each row corresponds to a set of input (ground-truth) phase objects alongside the resulting diffractive output images. The diagonal images represent the diffractive output images at the target wavelengths.
Fig. 6. Lateral resolution and phase sensitivity analysis for the diffractive multiplane QPI processor designs. (a) Images of the binary phase grating patterns encoded within the phase channels of the input object, along with the
Fig. 7. Results for testing the external generalization performance of the
Fig. 8. Analysis of the trade-off between the imaging performance and the output diffraction efficiency of diffractive multiplane QPI processors. (a) The PCC values of the diffractive multiplane QPI outputs with various levels of diffraction efficiency penalty, plotted as a function of the output diffraction efficiency values. Two sets of diffractive QPI designs using
Fig. 9. Experimental setup and validation of the diffractive multiplane QPI processor for phase-to-intensity transformations. (a) Illustration of a diffractive multiplane QPI processor composed of three diffractive layers
Get Citation
Copy Citation Text
Che-Yung Shen, Jingxi Li, Yuhang Li, Tianyi Gan, Langxing Bai, Mona Jarrahi, Aydogan Ozcan, "Multiplane quantitative phase imaging using a wavelength-multiplexed diffractive optical processor," Adv. Photon. 6, 056003 (2024)
Category: Research Articles
Received: Mar. 22, 2024
Accepted: Jul. 2, 2024
Posted: Jul. 2, 2024
Published Online: Sep. 11, 2024
The Author Email: Aydogan Ozcan (ozcan@ucla.edu)