The technology is mostly based on the research from Professor Weidong Zhou's group at the University of Texas at Arlington, in collaborations with his collaborators, and team members. https://zhoulab.uta.edu
Major technologies can be found in the following publications:
H. Yang, D. Zhao, S. Chuwongin, J.-H. Seo, W. Yang, Y. Shuai, J. Berggren, M. Hammar, Z. Ma and W. Zhou, “Transfer printing stacked nanomembrane lasers on silicon”, Nature Photonics 6, 615-620 (2012).
D. Zhao, S. Liu, H. Yang, Z. Ma, C. Reuterskiöld-Hedlund, M. Hammar, and W. Zhou, “Printed Large-Area Single-Mode Photonic Crystal Bandedge Surface-Emitting Lasers on Silicon, Scientific Reports 6, 18860 (2016).
Y. Shuai, D. Zhao, C. Stambaugh, N. Zimmerman, J. Lawall, and W. Zhou, “Coupled Bi-layer Photonic Crystal Slab Electro-optic Spatial Light Modulators”, IEEE Photon. J. 9, 7101411 (2017).
Y. Liu, A. Chadha, D. Zhao, J. R.Piper, Y. Jia, Y. Shuai, L. Menon, H. Yang, Z. Ma, S. Fan, F. Xia, and W. Zhou, “Approaching total absorption at near infrared in a large area monolayer graphene by critical coupling”, Appl. Phys. Lett. 105, 181105 (2014).