Herman Group

Welcome to Prof. Peter R. Herman's Group

Our research group studies and develops novel laser processing technology for defining photonic devices, optical circuits, microfluidic and other nanostructures. The laser enables fabrication in novel two- and three-dimensional architectures to be explored in optical materials for broad impact in today's optical communication networks and lab-on-a-chip microsystems.


K. Mahmoud Aghdami, A. Rahnama,E. Ertorer, P. R. Herman, “Laser nano-filament explosion for enabling open-grating sensing in optical fibre”, Nature Communications, , 6344 (2021).

A. Rahnama,T. Dadalyan, K. M. Aghdami,T. Galstian, P. R. Herman, “In-Fiber Switchable Polarization Filter Based on Liquid”, Advanced Optical Materials, , 202100054 (2021).

E. Alimohammadian, E. Ertorer, P. R. Herman, “Conical phase front and aberration beam shaping for manipulating femtosecond laser chemical etching”, Optical Material Express, 11, 2432 (2021).

A. Rahnama, K. M. Aghdami, Y. H. Kim, P. R. Herman, “Ultracompact Lens-Less "Spectrometer in Fiber" Based on Chirped Filament-Array Gratings”, Advanced Photonics Research, 1, 2000026 (2020).

E. Alimohammadian, E. Ertorer, E. Uzeda, J. Li, P. R. Herman, “Inhibition and enhancement of linear and nonlinear optical effects by conical phase front shaping for femtosecond laser material processing”, Scientific reports , 10, 21528 (2020).

E. Alimohammadian, S. Liu, M. Salehizadeh, J. Li, P. R. Herman, “Compensating deep focusing distortion for femtosecond laser inscription of low-loss optical waveguides”, Optics Letter , 45, 215286306 (2020).

G. Djogo, J. Li, S. Ho, M. Haque, E. Ertorer, J. Liu, X. Song, J. Suo, P. R. Herman, “Femtosecond laser additive and subtractive micro-processing: enabling a high-channel-density silica interposer for multicore fibre to silicon-photonic packaging”, International Journal of Extreme Manufacturing , 1, 045002(2019).