Venkatraman Gopalan
Vankatraman Gopalan's research focuses on the science and technology of nonlinear optical materials. The work straddles materials science, physics, and optical engineering. There are three current areas of focus: complex oxides, semiconductor fibers and metalattices, and symmetry. Technology impacted by Gopalan's research includes:
- Multiferroics enable electrical control of magnetic devices, and vice versa, and dual electrical-magnetic storage media
- Nonlinear optical devices are targeted for optical communications and infrared applications
- The vision of hybrid semiconductor-metal-silica structures is all-fiber optoelectronics, where light generation, modulation and detection can be performed within a fiber
In the News
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Recent Publications
Proximity Ferroelectricity in Compositionally Graded Structures
Eliseev, E. A., Morozovska, A. N., Kalinin, S. V., Chen, L. Q. & Gopalan, V., Apr 6 2026, In: Advanced Electronic Materials. 12, 7, e00661.Research output: Contribution to journal › Article › peer-review
Disorder Scattering Induced Large Room Temperature Nonlinear Anomalous Hall Effect in a Semiconductor CdGeAs2
Lee, S. H., Iwaya, T., Nakayama, K., Lim, T. Y., Min, L., He, J., Wang, Y., Gopalan, V., Xie, Z., Pan, X. C., Chen, Y. P., Chang, T. R., Lin, H., Fu, L., Segawa, K., Sato, T. & Mao, Z., Feb 2 2026, In: Advanced Materials. 38, 7, e14217.Research output: Contribution to journal › Article › peer-review
Decoding THz-Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks
Li, X., Ross, A., Stoica, V. A., Das, S., Hazra, S., Wang, H., Padma, H., Hoffmann, M. C., Kramer, P., Song, S., Nelson, S., Sato, T., Zhu, D., Ramesh, R., Martin, L. W., Cao, Y., Freeland, J. W., Lindenberg, A. M., Wen, H. & Chen, L. Q. & 1 others, , Jun 8 2026, In: Advanced Materials. 38, 32, e73118.Research output: Contribution to journal › Article › peer-review
Probing hidden symmetry via nonlinear transport in an altermagnet candidate Ca3Ru2O7
Mali, S., Zhao, Y., Wang, Y., Sarker, S., Chen, Y., Li, Z., Zhu, J., Liu, Y., Gopalan, V., Yan, B. & Mao, Z., Dec 2026, In: Nature communications. 17, 1, 3074.Research output: Contribution to journal › Article › peer-review
High Entropy Wide-Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties
Sarker, S., Wang, Y., Sun, Y., Benyacko, C., Almishal, S. S. I., Zhou, T., Zhang, Z., Nag, J., Sarkar, H., Shallenberger, J., Yennawar, H., Yang, Y., Maria, J. P., Mao, Z. & Gopalan, V., Apr 30 2026, In: Advanced Functional Materials. 36, 35, e25925.Research output: Contribution to journal › Article › peer-review
Colossal Cryogenic Electro-Optic Response Through Metastability in Strained BaTiO3 Thin Films
Suceava, A., Hazra, S., Ross, A., Philippi, I. R., Sotir, D., Brower, B., Ding, L., Zhu, Y., Zhang, Z., Sarkar, H., Sarker, S., Yang, Y., Sarker, S., Stoica, V. A., Schlom, D. G., Chen, L. Q. & Gopalan, V., Jan 13 2026, In: Advanced Materials. 38, 3, e07564.Research output: Contribution to journal › Article › peer-review
Unexpected symmetry breaking in ferroelectric wurtzite thin films on silicon observed by optical second harmonic generation
Suceava, A., Mercer, I., Prudnick, W. A., Spurling, R. J., Skidmore, C., Hazra, S., Maria, J. P. & Gopalan, V., Jun 2026, In: Optical Materials Express. 16, 6, p. 1815-1832 18 p.Research output: Contribution to journal › Article › peer-review
Switchable Polarization in an A-Site Deficient Perovskite through Vacancy and Cation Engineering
Yoshida, S., Hernandez, O., Miyake, J., Nakayama, K., Ishikawa, R., Hojo, H., Ikuhara, Y., Gopalan, V., Tanaka, K. & Fujita, K., Feb 4 2026, In: Journal of the American Chemical Society. 148, 4, p. 4557-4567 11 p.Research output: Contribution to journal › Article › peer-review
Chemically-Disordered Transparent Conductive Perovskites With High Crystalline Fidelity
Almishal, S. S. I., Kezer, P., Sivak, J. T., Iwabuchi, Y., Ayyagari, S. V. G., Sarker, S., Furst, M., Bejger, G., Yang, B., Gelin, S., Alem, N., Dabo, I., Rost, C. M., Sinnott, S. B., Crespi, V., Gopalan, V., Engel-Herbert, R., Heron, J. T. & Maria, J. P., Nov 13 2025, In: Advanced Science. 12, 42, e09868.Research output: Contribution to journal › Article › peer-review
LionGlass™: A low-melting, carbonate-free alternative to soda lime silicate glass
Clark, N. L., Mancini, M., Akman-Ozay, E. P., Ozay, M. A., Astle, S. R., Becerra, S. M., Gallagher, C., Suceava, A. C., Claireaux, C., Verheijen, O., Engelmann, T., Prange, A., Roos, C., Cook, G. B., Gopalan, V. & Mauro, J. C., Dec 2025, In: Journal of the American Ceramic Society. 108, 12, e70163.Research output: Contribution to journal › Article › peer-review
Discovery of a layered multiferroic compound Cu1−xMn1+ySiTe3 with strong magnetoelectric coupling
De, C., Liu, Y., Ayyagari, S. V. G., Zheng, B., Kelley, K. P., Hazra, S., He, J., Pawledzio, S., Mali, S., Guchhait, S., Yoshida, S., Guan, Y., Lee, S. H., Sretenovic, M., Ke, X., Wang, L., Engelhard, M. H., Du, Y., Xie, W. & Wang, X. & 5 others, , Jan 3 2025, In: Science Advances. 11, 1, eadp9379.Research output: Contribution to journal › Article › peer-review
Thermodynamic Theory of Proximity Ferroelectricity
Eliseev, E. A., Morozovska, A. N., Maria, J. P., Chen, L.-Q. & Gopalan, V., Apr 2025, In: Physical Review X. 15, 2, 021058.Research output: Contribution to journal › Article › peer-review
Tip-based proximity ferroelectric switching and piezoelectric response in wurtzite multilayers
Eliseev, E. A., Morozovska, A. N., Kalinin, S. V., Chen, L. Q. & Gopalan, V., Nov 2025, In: Physical Review Applied. 24, 5, 054026.Research output: Contribution to journal › Article › peer-review
Mixed 1D/0D Structures of Chiral Hybrid Lead Halides with an l-Nicotinium Spacer Exhibit Broadband Photoluminescence and Polarized Emission
Fletcher, J. D., Nag, J., Yazdaanpanah, R., Sarker, S., Kulkarni, S., Gilley, I. W., Aydin, K., Gopalan, V. & Kanatzidis, M. G., Mar 12 2025, In: Journal of the American Chemical Society. 147, 10, p. 8820-8831 12 p.Research output: Contribution to journal › Article › peer-review
Strain-induced lead-free morphotropic phase boundary
Ghanbari, R., KP, H., Patel, K., Zhou, H., Zhou, T., Liu, R., Wu, L., Khandelwal, A., Crust, K. J., Hazra, S., Carroll, J., Meyers, C. J. G., Wang, J., Prosandeev, S., Qiao, H., Kim, Y. H., Nabei, Y., Chi, M., Sun, D. & Balke, N. & 7 others, , Dec 2025, In: Nature communications. 16, 1, 7766.Research output: Contribution to journal › Article › peer-review
