Research

[Publications] [Conference proceedings] [Seminar talks] [Conference talks] [Posters] [Dissertation]

I study physical acoustics with a focus on scattering and diffraction phenomena.

Publications

  1. C. A. Gokani, T. S. Jerome, M. R. Haberman, M. F. Hamilton. "Acoustic radiation force exerted by progressive waves on subwavelength inhomogeneous scatterers," J. Acoust. Soc. Am., in press.

  2. C. A. Gokani, R. P. Williams, M. R. Haberman, M. F. Hamilton. "An alternative approach to modeling radiation from baffled circular pistons (L)," J. Acoust. Soc. Am. 158, 2642–2646 (2025). [PDF]* [BibTeX]

  3. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Analytical solutions for acoustic vortex beam radiation from planar and spherically focused circular pistons," JASA Express Lett. 4, 124001 (2024). Editor's choice. [PDF]† [BibTeX]

  4. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Paraxial and ray approximations of acoustic vortex beams," J. Acoust. Soc. Am. 155, 2707–2723 (2024). [PDF]* [BibTeX]

Conference proceedings

  1. C. A. Gokani and M. R. Haberman, "Acousto-electromagnetic media: Homogenization and constraints," 2025 Nineteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), Amsterdam, Netherlands, X-135–X-137 (2025). [PDF] [BibTeX]

  2. P. G. Kaufinger, C. A. Gokani, M. F. Hamilton, "Creative ways to study for an acoustics qualifying exam," Proc. Mtgs. Acoust. 56, 025001 (2025). [PDF]† [BibTeX]

  3. C. A. Gokani, T. S. Jerome, M. R. Haberman, M. F. Hamilton. "Born approximation of acoustic radiation force used for acoustofluidic separation," Proc. Mtgs. Acoust. 48, 045002 (2022). [PDF]* [BibTeX]

Seminar talks

  1. C. A. Gokani. "Acoustic Radiation Force: History, Theory, and Recent Advances," Texas Acoustics Seminar, Walker Department of Mechanical Engineering, UT Austin, October 3rd, 2025. [abstract] [slides] [recording]

  2. C. A. Gokani. "Radiation forces due to progressive waves on a string and acoustic waves," Center for Nonlinear Dynamics, Physics Department, UT Austin, September 10th, 2025. [crossword]

  3. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Paraxial and ray approximations of acoustic vortex beams," Center for Nonlinear Dynamics, Physics Department, UT Austin, September 25th, 2024. [slides]

Conference talks

  1. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Radiation force exerted by progressive waves on a string in terms of polarizability," J. Acoust. Soc. Am. 158, A191 (2025). Invited to present at the 189th ASA, Honolulu, HI. [slides]

  2. R. P. Williams, C. A. Gokani, M. F. Hamilton. "Measurement and analysis of second-harmonic generation in focused vortex beams," J. Acoust. Soc. Am. 158, A378 (2025).

  3. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Radiation force on inhomogeneous subwavelength scatterers due to progressive waves," J. Acoust. Soc. Am. 157, A112–A113 (2025). Presented at the 188th ASA, New Orleans, LA. [slides]

  4. C. A. Gokani, P. S. Wilson. "Timbral effects of the right-hand techniques of jazz guitarists Wes Montgomery and Joe Pass," J. Acoust. Soc. Am. 157, A107 (2025). Invited to present at the 188th ASA, New Orleans, LA. See also: "Explaining the tone of two legendary jazz guitarists," a lay-language piece corresponding to this presentation, and a review by Michael Stocker. [simulations] [slides]

  5. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Analytical solutions for acoustic vortex beam radiation from planar and spherically focused circular pistons," J. Acoust. Soc. Am. 157, A363 (2025). Presented at the 188th ASA, New Orleans, LA. [slides] [picture with Prof. Marston, vortex beam pioneer]

  6. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Effects of increasing orbital number on the field transformation in focused vortex beams," J. Acoust. Soc. Am. 155, A346 (2024). Presented at the 186th ASA, Ottawa, Canada. See also: "Using rays to describe spinning sound," a lay-language piece corresponding to this presentation. [slides]

  7. C. A. Gokani, J. M. Cormack, M. F. Hamilton. "Growth rates of harmonics in nonlinear vortex beams," J. Acoust. Soc. Am. 154, A328 (2023). Presented at the 185th ASA, Sydney, Australia. [slides]

  8. C. A. Gokani, S. P. Wallen, M. R. Haberman. "Reciprocity, passivity, and causality in fully coupled acousto-electrodynamic media," J. Acoust. Soc. Am. 154, A118 (2023). Presented at the 185th ASA, Sydney, Australia.

  9. C. A. Gokani, S. P. Wallen, M. F. Hamilton, M. R. Haberman. "Source-driven homogenization theory for electro-momentum coupled scatterers," J. Acoust. Soc. Am. 153, A120 (2023). Presented at the 184th ASA, Chicago, IL. Tied for first place in the ASA Structural Acoustics and Vibration Student Competition. Content from this talk was also presented at the 13th International Conference on Elastic, Electrical, Transport, and Optical Properties of Inhomogeneous Media, 2025.

  10. S. P. Wallen, B. M. Goldsberry, C. A. Gokani, M. R. Haberman. "Computational analysis of sub-wavelength scatterers exhibiting electro-momentum coupling." J. Acoust. Soc. Am. 153, A120 (2023).

  11. C. A. Gokani, Y. Meng, M. R. Haberman, M. F. Hamilton. "Analytical solution for a focused vortex beam radiated by a Gaussian source," J. Acoust. Soc. Am. 152, A56 (2022). Presented at the 183rd ASA, Nashville, TN. [slides]

  12. C. A. Gokani, T. S. Jerome, M. R. Haberman, M. F. Hamilton. "Born approximation of acoustic radiation force used for acoustofluidic separation," J. Acoust. Soc. Am. 151, A90 (2022). Presented at the 182nd ASA, Denver, CO and the 22nd International Symposium on Nonlinear Acoustics, Oxford, UK. [slides]

Posters

  1. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Langevin radiation force and its connection with linear acoustics," presented at the Walker Department of Mechanical Engineering Research Poster Competition, February 27th, 2026. [PDF]

  2. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Acoustic radiation force on subwavelength objects due to progressive waves," presented at the Walker Department of Mechanical Engineering Research Poster Competition, February 21st, 2025 (tied for 1st place out of 30 posters). Also presented at the 188th ASA/25th ICA meeting in New Orleans on May 23rd, 2025 (tied for 2nd place out of 20 posters). [PDF]

  3. C. A. Gokani, M. R. Haberman, M. F. Hamilton. "Paraxial and ray approximations of acoustic vortex beams," presented at the Walker Department of Mechanical Engineering Research Poster Competition, March 18th, 2024 (3rd place out of 30 posters). [PDF]

Dissertation

†© Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License.

*© Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America

↑ Return to home