Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
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Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Lasers and modern optical applications represent some of the most advanced achievements in the field of physics and engineering. A laser (Light Amplification by Stimulated Emission of Radiation) produces highly focused, coherent, and monochromatic beams of light, making it an indispensable tool in science and technology. Unlike ordinary light sources, lasers can deliver intense energy with precision, enabling applications ranging from medical surgeries and eye treatments to industrial cutting and welding. In modern optics, lasers are also central to communication systems, holography, barcode scanning, and even quantum research. Beyond lasers, optical applications now extend to fiber optics for high-speed internet, optical sensors for environmental monitoring, and imaging systems used in astronomy and medicine. Together, lasers and optical technologies have transformed how we transmit information, explore the universe, and improve human health, showcasing the profound impact of light-based innovations on everyday life and scientific progress.
This lecture is part of PHY 304 ELECTROMAGNETIC WAVES AND OPTICS in the Physics department. The course has 30 recorded lectures across 10 series, all free to watch.
