Journal Articles

[034]: H. Zhang, H. Zhang, C.I. Higgins, and X. Zhao (2026). "Vat Photopolymerization Working-Curve Prediction for NIST Benchmark: Data-Driven Multiphysics and Physics-Informed Surrogate Modeling". Integrating Materials and Manufacturing. https://doi.org/10.1007/s40192-026-00479-w

[033]: Y. Liu, H.Y. Chia, Z. Yang, R. Huang, Y. Lu, H. Yeung, B. Lane, H. Zhang, X. Zhao, and W. Yan (2026). "Reconstructing 3D melt pools from 2D images in laser powder bed fusion: Augmented intelligent in situ monitoring through simulations". Additive Manufacturing 129, 105377. https://doi.org/https://doi.org/10.1016/j.addma.2026.105377

[032]: M.J. Alam, H. Zhang, and X. Zhao (2026). "Layer-resolved in-situ fringe projection profilometry for process–structure–property evaluation in binder jet additive manufacturing". Journal of Manufacturing Processes 175, 1020-1044. https://doi.org/10.1016/j.jmapro.2026.08.077

[031]: Y. Zhang, A. Nooner, S. Velankar, D. Hershner, S. Li, J.J. Schwartz, and X. Zhao (2026). "Toward Wavelength-Selective Vat Photopolymerization: Combined In-Situ Interferometry and Raman Characterization of a Candidate Single-Monomer Resin System". Polymer Chemistry. https://doi.org/10.1039/d6py00410e

[030]: Y. Wang, and X. Zhao (2026). "Machine learning–aided in-situ ultrasonic characterization for multi-parametric monitoring of vat photopolymerization". Additive Manufacturing 127. https://doi.org/10.1016/j.addma.2026.105300

[029]: H. Zhang, and X. Zhao (2026). "Multiphysics modelling and simulation of dual-wavelength vat photopolymerization". The International Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-026-18627-z

[J028]: H. Zhang, A.N. Caputo, R.W. Neu, C.K.P. Vallabh, A.C. To, M.J. Alam, and X. Zhao (2026). "Process-Agnostic Multi-Metric Nondestructive Characterization of Porosity in Additive Manufacturing via Specialized Single-Camera Two-Wavelength Pyrometry". Additive Manufacturing 127. https://doi.org/10.1016/j.addma.2026.105282

[J027]: Y. Liu, H. Zhang, C.K.P. Vallabh, J.M. Wiezorek, and X. Zhao (2026). "Integrating in-situ two-wavelength pyrometry with thermal field modeling to elucidate solidification microstructure in LPBF of IN718". The International Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-026-18265-5

[J026]: Y. Bensouda, and X. Zhao (2026). "Dual-wavelength photoinhibition-aided vat photopolymerization (PinVPP) of bio-based polymers and functional hydrogels". Engineering Science in Additive Manufacturing 2. https://doi.org/10.36922/ESAM026080004

[J025]:  X. Zhao, Y. Bensouda, M.J. Alam, Y. Wang, H. Zhang, Y. Zhang, H. Zhang, and D.W. Rosen (2026). "Modelling vat photopolymerization: a comprehensive review and perspectives on digital twinning and advancing multi-wavelength processes". Virtual and Physical Prototyping 21, e2632491. https://doi.org/10.1080/17452759.2026.2632491

[J024]:  T.J. Kolibaba, J.P. Killgore, B.W. Caplins, R.J. Wendland, U. Arp, C.C. Miller, Y. Zong, C.I. Higgins, J.L. Sharp, S. Broce, T. Wang, V. Talačka, A. Ilginis, J. Andersson, A. Davenport, M.A. Panzer, J.M. Gonzalez, M.-D. Bui-Nguyen, R. Nickoloff, K. Billerbeck, A.M. Clay, M.R. Fratarcangeli, H.J. Qi, D.H. Porcincula, L.B. Bezek, D. Babcock, B. Kohlbush, K. Kikuta, M.N. Pearlson, D.A. Walker, E. Hasa, A. Aguirre-Soto, A. Celis-Guzman, D.M. Shah, D.E. Backman, R.L. Sridhar, K.A. Cavicchi, R.J. Viereckl, E. Tong, C.J. Hansen, C. Harms, A. Pena-Francesch, C. Antonini, R. Chaudhary, G. Muraca, Y. Bensouda, Y. Zhang, X. Zhao, and X. Allonas (2025). "Results of an Interlaboratory Study on the Working Curve in Vat Photopolymerization II: Towards a Standardized Method". Additive Manufacturing. https://doi.org/10.1016/j.addma.2025.104919

[J023]:  H. Zhang, A. Maier, M. Mathews, J. Hu, and X. Zhao (2025). "Development of open-architecture two-wavelength grayscale digital light processing for advanced vat photopolymerization". Additive Manufacturing 107. http://doi.org/10.1016/j.addma.2025.104818

[J022]:  M.J. Alam, H. Zhang, and X. Zhao (2025). "Enhancing image processing in single-camera two-wavelength imaging pyrometry for advanced in-situ melt pool measurement in laser powder bed fusion". Precision Engineering 93, 1-17. https://doi.org/10.1016/j.precisioneng.2024.12.013

[J021]:  Y. Zhang, H. Zhang, and X. Zhao (2024). "Exploring Three-dimensional Photoinhibition to Enhance Vat Photopolymerization: A Preliminary Study". Precision Engineering 90, 176-190. https://doi.org/10.1016/j.precisioneng.2024.08.009

[J020]:  H. Zhang, A.N. Caputo, C.K.P. Vallabh, H. Zhang, R.W. Neu, and X. Zhao (2024). "Evaluating and correlating multimodal process dynamics, microstructure features, and mechanical properties in laser powder bed fusion". Journal of Manufacturing Processes 127, 511-530. https://doi.org/10.1016/j.jmapro.2024.08.003

[J019]: Y. Bensouda, Y. Zhang, and X. Zhao (2024). "Vat Photopolymerization based Photoinhibition aided Ceramic Additive Manufacturing (PinCAM)". Journal of the European Ceramic Society 44. https://doi.org/10.1016/j.jeurceramsoc.2024.05.080

[J018]: C.K.P. Vallabh, H. Zhang, D.S. Anderson, A.C. To, and X. Zhao (2024). "Melt pool width measurement in a multi-track, multi-layer laser powder bed fusion print using single-camera two-wavelength imaging pyrometry". The International Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-024-13486-y

[J017]: T.J. Kolibaba, J.P. Killgore, B.W. Caplins, C.I. Higgins, U. Arp, C.C. Miller, D.L. Poster, Y. Zong, S. Broce, T. Wang, V. Talačka, J. Andersson, A. Davenport, M.A. Panzer, J.R. Tumbleston, J.M. Gonzalez, J. Huffstetler, B.R. Lund, K. Billerbeck, A.M. Clay, M.R. Fratarcangeli, H.J. Qi, D.H. Porcincula, L.B. Bezek, K. Kikuta, M.N. Pearlson, D.A. Walker, C.J. Long, E. Hasa, A. Aguirre-Soto, A. Celis-Guzman, D.E. Backman, R.L. Sridhar, K.A. Cavicchi, R.J. Viereckl, E. Tong, C.J. Hansen, D.M. Shah, C. Kinane, A. Pena-Francesch, C. Antonini, R. Chaudhary, G. Muraca, Y. Bensouda, Y. Zhang, and X. Zhao (2024). "Results of an Interlaboratory Study on the Working Curve in Vat Photopolymerization". Additive Manufacturing. https://doi.org/10.1016/j.addma.2024.104082

[J016]: Zhang, Y., H. Zhang, and X. Zhao (2024). In-situ interferometric curing monitoring for digital light processing based vat photopolymerization additive manufacturing. Additive Manufacturing, 2024. 81 https://doi.org/10.1016/j.addma.2024.104001

[J015]: H. Zhang, Y. Zhang, X. Zhao (2024). Vat photopolymerization additive manufacturing process modeling: a thermal-chemical coupling approach informed by in-situ and ex-situ characterization data, Additive Manufacturing Letters 9. http://doi.org/10.1016/j.addlet.2024.100193

[J014]: Zhang, H., Vallabh, C.K.P., and Zhao, X. (2023). Influence of spattering on in-process layer surface roughness during laser powder bed fusion. Journal of Manufacturing Processes 104, 289-306. https://doi.org/10.1016/j.jmapro.2023.08.058

[J013]: Zhang, H., Vallabh, C.K.P., and Zhao, X. (2023). Machine learning enhanced high dynamic range fringe projection profilometry for in-situ layer-wise surface topography measurement during LPBF additive manufacturing. Precision Engineering. https://doi.org/10.1016/j.precisioneng.2023.06.015

[J012]: Zhang, H., Vallabh, C.K.P., and Zhao, X. (2022). Registration and fusion of large-scale melt pool temperature and morphology monitoring data demonstrated for surface topography prediction in LPBF. Additive Manufacturing, 103075. http://doi.org/10.1016/j.addma.2022.103075

[J011]: Vallabh, C.K.P., Sridar, S., Xiong, W., and Zhao, X. (2022). Predicting melt pool depth and grain length using multiple signatures from in-situ single camera two-wavelength imaging pyrometry for laser powder bed fusion. Journal of Materials Processing Technology 308, 117724. http://doi.org/10.1016/j.jmatprotec.2022.117724

[J010]:Vallabh, C.K.P., and Zhao, X. (2022). Melt pool temperature measurement and monitoring during laser powder bed fusion based additive manufacturing via single-camera two-wavelength imaging pyrometry (STWIP). Journal of Manufacturing Processes 79, 486-500. http://doi.org/10.1016/j.jmapro.2022.04.058

[J009]: Vallabh, C.K.P., Zhang, Y., and Zhao, X. (2022). In-situ ultrasonic monitoring for Vat Photopolymerization. Additive Manufacturing 55, 102801. https://doi.org/10.1016/j.addma.2022.102801

[J008]: Zhang, H., Vallabh, C.K.P., Xiong, Y., and Zhao, X. (2022). A systematic study and framework of fringe projection profilometry with improved measurement performance for in-situ LPBF process monitoring. Measurement 191, 110796.   https://doi.org/10.1016/j.measurement.2022.110796

[J007]: Vallabh, C.K.P. and X. Zhao. (2021). Continuous Comprehensive Monitoring of Melt Pool Morphology Under Realistic Printing Scenarios with Laser Powder Bed Fusion. 3D Printing and Additive Manufacturing. http://10.1089/3dp.2021.0060

[J006]: Vallabh, C.K.P., Xiong, Y., & Zhao, X. (2021). 3D printing of liquid metal EGaIn through laser induced forward transfer: A proof-of-concept study. Manufacturing Letters, 28, 42-45.Elsevier BV. http://doi.org/10.1016/j.mfglet.2021.03.004.

[J005]: Zhao, X., & Rosen, D.W. (2018). An implementation of real-time feedback control of cured part height in Exposure Controlled Projection Lithography with in-situ interferometric measurement feedback. Additive Manufacturing, 23, 253-263.Elsevier BV. http://doi.org/10.1016/j.addma.2018.07.016.

[J004]: Zhao, X., & Rosen, D.W. (2017). Experimental validation and characterization of a real-time metrology system for photopolymerization-based stereolithographic additive manufacturing process. International Journal of Advanced Manufacturing Technology, 91(1-4), 1255-1273.Springer Science and Business Media LLC. http://doi.org/10.1007/s00170-016-9844-1.

[J003]: Zhao, X., & Rosen, D.W. (2017). A data mining approach in real-time measurement for polymer additive manufacturing process with exposure controlled projection lithography. Journal of Manufacturing Systems, 43, 271-286.Elsevier BV. http://doi.org/10.1016/j.jmsy.2017.01.005.

[J002]: Zhao, X., & Rosen, D.W. (2017). Real-time interferometric monitoring and measuring of photopolymerization based stereolithographic additive manufacturing process: sensor model and algorithm. Measurement Science and Technology, 28(1), 015001.IOP Publishing. http://doi.org/10.1088/0957-0233/28/1/015001.

[J001]:  Zhao, X., & Rosen, D.W. (2016). Simulation study on evolutionary cycle to cycle time control of exposure controlled projection lithography. Rapid Prototyping Journal, 22(3), 456-464.Emerald. http://doi.org/10.1108/rpj-01-2015-0008.