Colloquium - Dr. Ali Khademian | Department of Physics

Colloquium - Dr. Ali Khademian

Event Information
Event Date: 
Tuesday, April 4, 2017 - 3:15pm
Event Location: 
Physics Building - Room 104

Post-doctoral

University of North Texas

*Refreshments will be served in the Student Lounge at 3:15 PM

Title: Developing efficient and cost effective laser sources for high precision atomic spectroscopy

Abstract: Single and multi-frequency lasers are essential tools for study of atoms, molecules and nuclei. A number of laser sources have been developed in our group at the physics department of UNT. Some of these sources include single frequency stabilized diode lasers at 972, 1420 and 1460 nm using fiber Bragg gratings (FBG). Single frequency blue lasers at 486 nm have been generated via second harmonic generation (SHG) of NIR using nonlinear crystals both in waveguide and bulk configurations. These are among highest efficiency doubling lasers reported. Also IR fiber lasers sources at 1083 and 2058 nm using Ytterbium and Thulium doped fibers have been developed and are employed in precision studies of helium atoms. These laser sources have adequate power and frequency stability for a number applications. Other important aspects of these lasers include their simplicity, efficiency, convenience and low cost. This talk summarizes the innovative techniques used for generating these laser sources.

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