2023-2024 ROC Optica Speaker Series: Saeed Pegahan, TOPTICA Photonics USA

  • October 03, 2023
  • 7:00 PM
  • The Institute of Optics - University of Rochester, 480 Intercampus Drive, Rochester, NY


Registration is closed

Optical Frequency Combs and Their Applications in Optical Clocks, Quantum Sensing, and Spectroscopy

Saeed Pegahan, PhD - Frequency Comb Scientist at TOPTICA Photonics USA


Optical frequency combs are vital and innovative instruments that have emerged as essential components in modern precision metrology experiments. These groundbreaking experiments encompass a wide range of applications, from remote gas sensing to the precise comparison of optical atomic clocks. In this presentation, I will discuss my role at TOPTICA Photonics Inc., one of the leading laser companies in the world. Our laser portfolio includes diode lasers, ultrafast fiber lasers, high-power fiber lasers, difference frequency combs (DFCs), among others. The integration of DFCs into TOPTICA's systems has rendered them indispensable tools in quantum technology. Furthermore, DFCs are not limited to quantum technology alone; they find utility in a broad and expanding spectrum of applications, including high-precision spectroscopy, metrology, and Rydberg atom sensing. 

About the speaker

Saeed Pegahan is an experimental physicist with background on ultracold Fermi gases and Electromagnetically Induced Transparency (EIT) with Rydberg atoms. In 2021, Saeed earned his Ph.D. from North Carolina State University, where he conducted extensive research on degenerate weakly interacting Fermi gases and explored collective quantum dynamics, such as spin waves, under the supervision of Prof. John Thomas. Saeed received numerous awards including the Sigma XI research award from NC State University and the 5-sigma Physicist award from the American Physical Society for advocacy of the Keep STEM Talent Act.

During his postdoctoral research at William & Mary, Saeed collaborated with a diverse team of atomic and nuclear scientists on multiple projects using room-temperature Rydberg atoms and polarization magnetometry techniques to track charged particles.

As a frequency comb application scientist at TOPTICA Photonics, Saeed is involved different projects related to application of frequency combs in quantum technology and assist different teams including sales on technical questions related to frequency combs and laser refencing techniques. 

Parking and location

The talk will be held in the Room 101 of Goergen Hall (Institute of Optics, 480 Intercampus Drive).  Parking is available in the lot across the street in Intercampus Drive Lot, and is free for talk attendees (no pass needed).

Pre-talk dinner 

A pre-talk dinner will be held at the King and I Thailand Cuisine at 5:15 pm on 10/3 located at 1455 East Henrietta Rd, Rochester, NY 14623. If you would like to attend, please contact the house committee by email to make reservations. Email: house@opticarochester.org

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