Publications

1. X. Yao, and C. Liu, “Digital Adaptive Optics Confocal Microscopy Based on Iterative Retrieval of Optical Aberration from a Guidestar Hologram,” US Patent Application, No. 62/476,188 (2017).
2. C. Liu, and M. K. Kim, “Systems and Methods for Performing Quantitative Phase contrast Confocal Microscopy,” US Utility Patent , No. 10,082,653 (2018).

1. Y. Lu, C. Liu, and X. Yao, "In vivo super-resolution imaging of transient retinal phototropism evoked by oblique light stimulation," Journal of Biomedical Optics 23 (5), 050502 (2018).
2. D. Toslak, C. Liu, M. Alam, and X. Yao, "Near Infrared Light Guided Miniaturized Indirect Ophthalmoscopy for Nonmydriatic Wide-Field Fundus Photography," Optics Letters 43 (11), 2551-2554 (2018).
3. D. Toslak, A. Ayata, C. Liu, M. K. Erol, and X. Yao, "Wide-Field Smartphone Fundus Video Camera Based on Miniaturized Indirect Ophthalmoscopy," Retina 38 (2), 438-441 (2018).
4. C. Liu, D. Thapa, X. Yao, "Digital Adaptive Optics Confocal Microscopy Based on Iterative Retrieval of Optical Aberration from a Guidestar Hologram," Optics Express 25 (7), 8223-8236 (2017).
5. C. Liu*, Y. Zhi*, B. Wang, D. Thapa, Y. Chen, M. Alam, Y. Lu, X. Yao, "In vivo Super-Resolution Retinal Imaging Through Virtually Structured Detection," Journal of Biomedical Optics (Letter) 21 (12), 120502 (2016).
6. C. Liu, H. Cao, M. A. Choma, "Coherent Artifact Suppression in Line-field Reflection Confocal Microscopy Using a Low Spatial Coherence Light Source," Optics Letters 41 (20), 4775-4778 (2016).
7. C. Liu, S. Knitter, Z. Cong, I. Sencan, H. Cao, M. A. Choma, "High-speed Line-field Confocal Holographic Microscope for Quantitative Phase Imaging," Optics Express 24 (9), 9251-9265 (2016).
8. S. Knitter, C. Liu, B. Redding, M. A. Khokha, M. A. Choma, H. Cao, "Coherence Switching of a Degenerate VECSEL for Multimodality Imaging," Optica 3 (4), 403-406 (2016). Featured in Optics & Photonics News, "Controlling Spatial Coherence" (2016)! Covered in Photonics, Phys.org, Optics.org, Wtnh, StreetInsider, OSA, Madgadget, YaleNews!
9. C. Liu, M. K. Kim, "Digital Adaptive Optics Line-Scanning Confocal Imaging System," Journal of Biomedical Optics 20 (11), 8223-8236 (2015).
10. X. Yu, J. Hong, C. Liu, M. K. Kim, "Review of Digital Holographic Microscopy for Three-Dimensional Profiling and Tracking," Optical Engineering 53 (11), 112306 (2014).
11. C. Liu, S. Marchesini, M. K. Kim, "Quantitative Phase-Contrast Confocal Microscope," Optics Express 22 (15), 17830-17839 (2014).
12. X. Yu, J. Hong, C. Liu, M. Cross, D. T. Haynie, M. K. Kim, "Four-Dimensional Motility Tracking of Biological Cells by Digital Holographic Microscopy," Journal of Biomedical Optics 19 (4), 045001 (2014).
13. C. Liu, X. Yu, M. K. Kim, "Phase Aberration Correction by Correlation in Digital Holographic Adaptive Optics," Applied Optics 52 (12), 2940-2949 (2013).
14. C. Liu, X. Yu, M. K. Kim, "Fourier Transform Digital Holographic Adaptive Optics Imaging System," Applied Optics 51 (35), 8449-8454 (2012).
15. X. Yu, M. Cross, C. Liu, D. C. Clark, D. T. Haynie, M. K. Kim, "Quantitative Imaging and Measurement of Cell–Substrate Surface Deformation by Digital Holography," Journal of Modern Optics 59 (18), 1591-1598 (2012).
16. X. Yu, M. Cross, C. Liu, D. C. Clark, D. T. Haynie, M. K. Kim, "Measurement of the Traction Force of Biological Cells by Digital Holography," Biomedical Optics Express 3 (1), 153-159 (2012).
17. C. Liu, M. K. Kim, "Digital Holographic Adaptive Optics for Ocular Imaging: Proof of Principle," Optics Letters 36 (14), 2710-2712 (2011).
18. C Liu, D. Wang, J. J. Healy, B. M. Hennelly, J. T. Sheridan, M. K. Kim, "Digital Computation of the Complex Linear Canonical Transform," Journal of the Optical Society of America A 28 (7), 1379-1386 (2011).
19. H. Cui, D. Wang, Y. Wang, C. Liu, J. Zhao, Y. Li, "Automatic Procedure for Non-coplanar Aberration Compensation in Lensless Fourier Transform Digital Holography," Acta Phys. Sin. 60 (4), 044201 (2011).
20. C. Liu, D. Wang, Y. Zhang, "Comparison and Verification of Numerical Reconstruction Methods in Digital Holography," Optical Engineering 48 (10), 105802 (2009).
21. C. Liu, D. Wang, Y. Zhao, "Derivatives-Based Autofocus Algorithms for the Digital Holographic Imaging," Chinese Journal of Lasers 36 (11), 2989-2996 (2009).

1. C. Liu, B. Pazzucconi, J. Liu, L. Liu, and X. Yao, "A Holographic Waveguide Based Eye Tracker," ARVO 2018, Honolulu Hawaii (2018). Selected as one of five latest high-tech advances in vision research from 6000+ applications for press coverage.
2. Y. Lu, C. Liu, and X. Yao, “In Vivo Observation of Transient Photoreceptor Movement Correlated with Oblique Light Stimulation," SPIE: Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XVI, 104971M (2018).
3. C. Liu, B. Pazzucconi, J. Liu, L. Liu, and X. Yao, "A Holographic Waveguide Based Eye Tracker," SPIE: Ophthalmic Technologies XXVIII, 104741T (2018).
4. S. Knitter, C. Liu, B. Redding, M. K. Khokha, M. A. Choma, and H. Cao, "Coherence Switching of a Degenerate VECSEL for Multimodality Imaging," Lasers and Electro-Optics (CLEO), 16542256 (2016).
5. C. Liu, S. Knitter, Z. Cong, I. Sencan, H. Cao, and M. A. Choma, "High-Speed Line-Scanning Confocal Holographic Microscopy for Quantitative Phase Imaging," SPIE: Quantitative Phase Imaging II, 971820 (2016).
6. C. Liu, "Spatial Heterodyne Scanning Laser Confocal Holographic Microscopy," arXiv:1610.03845 (2016).
7. C. Liu, and M. K. Kim, "Holographic Line-Scanning Confocal Microscope," Digital Holography and Three-Dimensional Imaging, DM3B.3 (2014).
8. C. Liu, X. Yu, J. Hong, and M. K. Kim, "Image Synthesis for Off Axis Low Coherence Digital Holography," Frontiers in Optics, JW3A. 17 (2013).
9. C. Liu, X. Yu, and M. K. Kim, "Simulation and Experiment of Fourier Transform Digital Holographic Adaptive Optics," Digital Holography and Three-Dimensional Imaging, DW2A.18 (2013).
10. X. Yu, C. Liu, and M. K. Kim, "Four Dimensional Motility Tracking of Biological Cells by Digital Holographic Microscopy," Digital Holography and Three-Dimensional Imaging, DM4A.6 (2013).
11. A. Hartman, C Liu, and M. K. Kim, "Images of Cone Photoreceptors Using Spatially Non-Coherent Light," APS Meeting Abstracts 1, 46014 (2013).
12. M. K. Kim, and C. Liu, "Ophthalmic Adaptive Optics by Digital Holography," SPIE: Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XI, 858707 (2013).
13. C. Liu, and M. K. Kim, "In Vitro Bovine Retina Imaging by Digital Holographic Adaptive Optics," Frontiers in Optics, FW5A.2 (2012).
14. C. Liu, and M. K. Kim, "Biological Imaging by Digital Holographic Adaptive Optics," Biomedical Optics, JM3A.61 (2012).
15. X. Yu, M. Cross, C. Liu, D. C. Clark, D. T. Haynie, and M. K. Kim, "Quantitative Imaging of Surface Deformation on Substrata Due to Cell Motility by Digital Holography," Biomedical Optics and 3D Imaging, DSu4C.6 (2012).
16. C. Liu, M. K. Kim, X. Yu, and D. C. Clark, "Digital Holographic Adaptive Optics for Retinal Imaging," Digital Holography and Three-Dimensional Imaging, DWC37 (2011).
17. X. Yu, C. Liu, D. C. Clark, and M. K. Kim, "Measurement of Young’s Modulus of Polyacrylamide Gel by Digital Holography," Digital Holography and Three-Dimensional Imaging, DTuC32 (2011).
18. J. Zhao, D. Wang, Y. Wang, C. Liu, Y. Li, H. Cui, and Y. Wan, "Autofocusing on Pure Phase Object for Living Cell Imaging in Lensless Fourier Transform Digital Holography," Interferometry XV: Techniques and Analysis, 779017 (2010).
19. D. Wang, C. Liu, Y. Wang, and J. Zhao, "Fast Fourier Transform Based Direct Integration Algorithm for the Linear Canonical Transform," Laser Optics 2010, 78220I (2011).
20. C. Liu, D. Wang, Y. Li, Y. Wan, and Z. Jiang, "The Effect of Sampling on FFT-based Direct Integration Method in Digital Holography," International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology, 75131Q (2009).
21. Y. Zhang, D. Wang, C. Liu, Y. Wan, and Z. Jiang, "Improvement of Reconstruction Algorithms in Digital Holography," Conference on Lasers and Electro-Optics/Pacific Rim, WJ3_4 (2009).
22. Y. Zhang, D. Wang, C. Liu, Y. Li, Y. Wan, and Z. Jiang, "An Improved Reconstruction Algorithm by Direct Discretization in Digital Holography," International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823W (2009).
23. Y. Li, D. Wang, G. Wang, Y. Zhang, and C. Liu, "Measurement of Temperature Field in the Region Near to the Radiator by Using Digital Holography," International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738240 (2009).
24. C. Liu, and B. Sun, "The Equation of State for the Nuclear Matter and Properties of the Neutron Star," arXiv: 0707.3864 (2007).

Invited talks

1. C. Liu, “Digital Wide-Field and Confocal Holographic Microscopy”, University of Illinois at Chicago, Chicago, IL (2015).
2. C. Liu, “Digital Holographic Adaptive Optics: From Ophthalmology to Astronomy”, Yale University, New Haven, CT (2014).

Contributed talks

1. C. Liu, S. Knitter, Z. Cong, I. Sencan, H. Cao, M. Choma, “High-Speed Line-Scanning Confocal Holographic Microscopy for Quantitative Phase Imaging”, Photonics West, San Francisco, CA (2016).
2. C. Liu, M. K. Kim, “Holographic Line-Scanning Confocal Microscope”, Digital Holography and Three-Dimensional Imaging, Seattle, WA (2014).
3. C. Liu, X. Yu, J. Hong, M. K. Kim, “Image Synthesis for Off Axis Low Coherence Digital Holography”, Frontier in Optics, Orlando, FL (2013).
4. C. Liu, M. K. Kim, “In Vitro Bovine Imaging by Digital Holographic Adaptive Optics”, Frontier in Optics, Rochester, NY (2012).