Herman Group

Principal Investigator

Tel: 416-978-7722
Fax: 416-971-3020

Prof. Peter R. Herman

Professor

Peter R. Herman received the B.Eng. degree (1980) in Engineering Physics at McMaster University. He earned M.A.S.c (1982) and Ph.D. (1986) degrees studying lasers and diatomic spectroscopy in the Physics Department at the University of Toronto that followed with a post-doctoral position at the Institute of Laser Engineering in Osaka University, Japan (1987) to the study of laser-plasma physics and X-ray lasers. He joined the Department of Electrical and Computer Engineering at the University of Toronto in 1988 where he currently holds a full professor position. Professor Herman directs a large and collaborative research group that develops and applies laser technology and advanced beam delivery systems to control and harvest laser interactions in new frontiers of 3-D nanofabrication. Our mantra is: “We begin with light and we end with light devices.” To this end we are inventing new methods for processing internally inside optical materials that carve out highly compact and functional lightwave circuits, microfluidics, optofluidic systems, biophotonic sensors, and smart medical catheters. Our end goals are inventing new manufacturing processes and extending optical device and Lab-on-a-chip concepts towards more compact Lab-on-a-fiber and Lab-in-a-film microsystems. Our group collaborates with many academic and industry groups and has published more than 300 scientific journal and conference papers and 10 patents.

Membership / Awards:

Senior Research Scientist,

Dr. Jianzhao Li

Jianzhao Li received his B.Sc. degree from Sichuan University, Chengdu, China, M.Sc. degree from Fudan University, Shanghai, China, and Ph.D. degree from the University of Electro-Communications, Tokyo, Japan. His research experiences include laser, laser spectroscopy and microscopy, nonlinear and quantum optics, laser material processing and micro/nano-fabrication. His current research interests are laser-material interaction mechanism and combining advanced laser micro/nano-fabrication with multi-modal laser spectroscopy/microscopy for photonic, biophotonic and other applications. He is Senior Member of OSA and SPIE.

Research Scientist

Dr. Stephen Ho

Stephen Ho received his B.A.Sc. degree in Engineering Science (Biomedical Engineering option) at the University of Toronto. He further his studies and received his M.A.Sc. degree and Ph.D. in Electrical and Computer Engineering under the Photonics Group at the University of Toronto. His research interests are femtosecond laser micro and nano-machining, and laser fabrication of optofluidic lab-on-a-chips and 3-D structures inside transparent materials.

Post-Doctoral Fellow

Dr. Ehsan Alimohammadian

Post-Doctoral Fellow

Ehsan Alimohammadian received his B.Sc. in 2012 from the Department of Electrical and Computer Engineering at the University of Tabriz. In 2014, he earned a M.Sc. degree from Electrical and Computer Engineering at the University of Manitoba by modeling the performance of diode-pumped Nd:YVO₄ laser systems. He received his Ph.D. in 2020 at the University of Toronto for work on beam shaping applications for femtosecond laser micro/nanofabrication.

Graduate Student

Abdullah Rahnama

Ph.D. Candidate

Abdullah Rahnama received his B.Sc. in 2016 from the Department of Physics at the Sharif University of Technology. In 2018, he earned a M.Sc. degree from Physics and Astronomy department at the University of Waterloo working on "Optical pulse compression of first anti-Stokes order in the multi frequency Raman generation with the presence of red shifted shoulder". He joined Prof Peter Herman's group in 2018 as a PhD student. He currently works on the development of novel Bragg grating based devices for lab-in-fiber sensing.

Graduate Student

Gligor Djogo

Ph.D. Candidate

Gligor is a Ph.D. student in Prof Herman's group.

Graduate Student

Polina Zavyalova

Ph.D. Candidate

Polina is a Ph.D studnet co-supervised by Prof Herman and Prof Sivanandam of the Dunalp Institute of Astronomy & Astrophysics.

Graduate Student

Amirhossein (Amir) Rahimnouri

M.A.Sc. Candidate

Amir is M.A.Sc. student in Prof Herman's group.

Graduate Student

YoungHwan (Steve) Kim

M.A.Sc. Candidate

Young Hwan (Steve) Kim received his B.Sc. in 2019 from the Department of Electrical and Computer Engineering at the University of Toronto. He currently develops novel lab-in-fiber sensors and ultrafast laser processes for industry partnerships.


Prof. Peter R. Herman

Principal Investigator

Dr. Jianzhao Li

Senior Research Scientist
Adjunct Professor, Western University

Dr. Stephen Ho

Research Scientist

Dr. Ehsan Alimohammadian

Post-Doctoral Fellow

Abdullah Rahnama

Ph.D. Candidate

Gligor Djogo

Ph.D. Candidate

Polina Zavyalova

Ph.D. Candidate

Amirhossein (Amir) Rahimnouri

M.A.Sc. Candidate

YoungHwan (Steve) Kim

M.A.Sc. Candidate