Objectives: Laser and light therapy have revolutionized the field of cosmetic medicine with their ability to safely and effectively treat a range of dermatological conditions. However, the theoretical principles underlying these modalities are often overlooked. In this article, we explore the key quantum mechanics principles and some physics principles involved in laser and light therapy.
As a team of doctors who are quantum mechanics enthusiasts, we discuss the concept of wave particle duality, whereby a photon can exist in two states simultaneously, allowing for its emission and absorption during laser
Introduction: In quantum mechanics, light is modeled as both a wave and a particle, known as a photon. When light interacts with matter, the behaviour of the photons is governed by the laws of qunatum mechanics.
Intense pulsed light and laser are technology that use spectrum of wavelengths to selectively traget certain chromophores in the skin, such as melanin or haemoglobin. This process is used for a variety of cosmetic and medical applications including hair removal, skin rejuvenation and treatment of vascular and pigmented lesions.
The interaction of laser and light in intense pulsed light with matter
Materials / method: Keywords including "wave-particle duality", "Pauli exclusion principle", "superposition", "spontaneous emission", "stimulated emission", "photo reaction", "Intense Pulsed Light", "Laser" were searched in the OVID, PubMed, and MEDLINE databases for relevant studies published on light and laser treatments. Some papers were further reviewed in order to fit the mechanism of principles involved in light and laser treatments. Clinical photos of daily practice were also included to allow better understanding how these reactions related to clinical practice.
Results: Different quantum mechanics principles (Wave-particle duality and Pauli exclusion principles) and other physics principles (Superposition, Spontaneous emission and Stimulated emission, Photochemical reaction, Photothermal reaction, Photomechanical reaction, photoionization) were explained with evidence in this presentation. By understanding these fundamental principles physicians can treat their patients better.
Conclusion: this presentation has highlighted the crucial role of quantum mechanics principles and some other physics principles in laser and light therapy. Quantum mechanics provides the theoretical framework necessary for understanding the behavior of photons and their interaction with tissues during these therapies. The principles of particle-wave duality, pauli exclusion principle and superposition are fundamental in explaining the mechanisms behind laser-induced tissue heating, selective photothermolysis, and the emission and absorption of photons.
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