Main Components of LASERS скачать в хорошем качестве

Main Components of LASERS

🎓 Course Description – LASERS (PHYB3601T) *B.Sc. Semester VI | Punjabi University* Welcome to the complete course on *LASERS (PHYB3601T)* designed strictly according to the syllabus of **B.Sc. Non-Medical, Punjabi University and its constituent colleges**. This playlist covers both *Section A and Section B* of the university syllabus with clear explanations, diagrams, derivations, and exam-oriented preparation. --- 📘 What This Course Covers 🔹 SECTION A – Fundamentals of Laser Physics Transitions between energy states Absorption, spontaneous & stimulated emission Principle and properties of laser beam Einstein coefficients (derivation included) Concept of metastable states Population inversion & laser pumping Spectral line broadening (natural, collision & Doppler) Line width and line profile Optical amplification & threshold condition Three-level & four-level laser systems Optical resonator, longitudinal & transverse modes --- 🔹 SECTION B – Laser Systems & Applications He–Ne Laser CO₂ Laser Ruby Laser Nd:YAG Laser Dye Laser Semiconductor Laser Population inversion techniques Output characteristics Q-switching Mode locking Holography Fibre fundamentals Applications of lasers in science & industry --- 🎯 Course Features ✔ Concept-based teaching ✔ Complete derivations for exams ✔ Neat and clear diagrams ✔ Previous year question focus ✔ Short notes and long question preparation ✔ One-shot revision before exams --- 👨‍🏫 Who Should Watch This? B.Sc. Physics students (Semester VI) Students of Punjabi University Students preparing for university exams Learners interested in Laser Physics & Modern Optics - 🔔 Subscribe and turn on notifications to stay updated with every lecture. Let’s master *Laser Physics* with clarity, confidence, and strong conceptual understanding.