Laser Physics and Selective Photothermolysis — Wavelengths, Chromophores, Resurfacing, and Scar Treatment

This episode reviews the core principles of laser physics and selective photothermolysis in plastic surgery.Topics include wavelength, fluence, spot size, pulse width, thermal relaxation time, and the major chromophores: water, hemoglobin, ink, and melanin. Clinical applications include vascular lesions, port-wine stains, hemangiomas, pigment, tattoo removal, laser hair removal, CO₂ resurfacing, fractional lasers, and hypertrophic burn scar treatment.The episode emphasizes how laser settings translate into safe, targeted treatment — and how to avoid complications in different skin types.Part of Dr. Lara’s Plastic Surgery Compendium — a high-yield audio reference for plastic surgery trainees and surgeons.DisclaimerThis podcast is intended for educational purposes only and is designed for medical students, residents, fellows, and practicing healthcare professionals. It is not intended to provide medical advice, diagnosis, or treatment for any individual patient. The content presented reflects general surgical principles and should not be used as a substitute for formal medical training, clinical judgment, or consultation with qualified healthcare professionals. Listening to this podcast does not establish a physician–patient relationship.