Celebrating National Science Day: The Legacy of the Raman Effect          

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February 29, 2024

Celebrating National Science Day: The Legacy of the Raman Effect          


  • National Science Day, observed on February 28th, marks a pivotal moment in scientific history – the announcement of the discovery of the “Raman Effect” by physicist Sir CV Raman. This designation by the Government of India in 1986 pays tribute to Raman’s groundbreaking contribution to science.

The Man Behind the Discovery:

  • Chandrasekhara Venkata Raman, born in 1888 in Trichy, showcased his brilliance at an early age. Despite health setbacks, Raman pursued his passion for science. His after-hours research at the Indian Association for the Cultivation of Science (IACS) laid the groundwork for his illustrious career.

Journey to Discovery:

  • During a voyage to England in 1921, Raman’s fascination with the deep blue color of the Mediterranean Sea sparked his curiosity. Questioning conventional explanations, he embarked on a scientific exploration of light scattering, ultimately leading to his groundbreaking observation.

Understanding the Raman Effect:

  • The Raman Effect, unveiled through meticulous experimentation, reveals that when light passes through a liquid, a fraction of it scatters with a different color due to changes in wavelength caused by molecular vibrations. Raman’s seminal report in Nature underscored the universal nature of this phenomenon.

Implications and Applications:

  • Raman’s discovery transcended its original scope, revolutionizing fields beyond quantum theory. Raman spectroscopy emerged as a fundamental analytical tool in chemistry, enabling nondestructive analysis of organic and inorganic compounds. Its applications span diverse domains, from cultural preservation to forensic science.


  • Sir CV Raman’s legacy extends far beyond his Nobel Prize-winning discovery. National Science Day serves as a testament to his enduring impact on scientific inquiry and technological advancement. The Raman Effect continues to inspire innovation and exploration, highlighting the profound influence of curiosity-driven research on society.

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Celebrating National Science Day: The Legacy of the Raman Effect | Vaid ICS Institute