nauka: C. V. Raman

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Chandrasekhara Venkata Raman ( RAH-muhn; IAST: Candraśēkhara Veṅkaṭarāmaṉ; 7 November 1888 – 21 November 1970) was an Indian physicist known for his work in the field of light scattering. Using a spectrograph that he developed, he and his student K. S. Krishnan discovered that when light traverses a transparent material, the deflected light changes its wavelength. This phenomenon, a hitherto unknown type of scattering of light they called modified scattering, was subsequently termed the Raman effect or Raman scattering. In 1930, Raman received the Nobel Prize in Physics "for his work on the scattering of light and for the discovery of the effect named after him" and became the first Asian a…

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Subrahmanyan Chandrasekhar (19 October 1910 – 21 August 1995) was an Indian-American astrophysicist. He shared the 1983 Nobel Prize in Physics "for his theoretical studies of the physical processes of importance to the structure and evolution of the stars." His mathematical treatment of stellar evolution yielded many of the current theoretical models of the later evolutionary stages of massive stars. The Chandrasekhar limit describes the maximum mass of a white dwarf (1.44 solar masses). Above it, a stellar remnant will collapse to form a neutron star or black hole. Many concepts, institutions and inventions, including the Chandra X-Ray Observatory, are named after him. Born in the late Bri…

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Non‐linear Raman spectroscopy 75 years after the Nobel Prize for the discovery of Raman scattering and 40 years after the first CARS experiments. Abstract We give a brief overview of the Proceedings of the European Conference on Non‐linear Optical Spectroscopy (ECONOS2004), held at the University of Erlangen, Germany, 4–6 April 2004. Conceptual and technical advances in non‐linear Raman techniques and interesting research results and engineering applications reported in this issue are in many ways representative of the state of the art in the field of non‐linear Raman spectroscopy 75 years after the Nobel Prize for the discovery of Raman scattering and 40 years after the first experiments o…

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The Nobel Prize is a set of annual international awards bestowed on "those who conferred the greatest benefit on humankind" in the fields of Physics, Chemistry, Physiology or Medicine, Literature, Peace and Economic Sciences, instituted by Alfred Nobel's last will, which specified that a part of his fortune be used to create the prizes. Each laureate (recipient) receives a gold medal, a diploma and a sum of money, which is decided annually by the Nobel Foundation. The Royal Swedish Academy of Sciences awards the Nobel Prize in Physics, the Nobel Prize in Chemistry and the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel; the Nobel Assembly at the Karolinska Institute a…

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The discovery of combinational scattering of light (the Raman effect)

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Fiftieth anniversary of the discovery of combinational scattering of light (the Raman effect)

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The Bharat Ratna (Sanskrit pronunciation: [bʱaːɾət̪ ɾət̪n̪ə]; lit. 'Jewel of India') is the highest civilian award of the Republic of India. Instituted on 2 January 1954, the award is conferred in recognition of "exceptional service/performance of the highest order", without distinction of race, occupation, position or gender. The award was originally limited to achievements in the arts, literature, science, and public services, but the Government of India expanded the criteria to include "any field of human endeavour" in December 2011. The recipients receive a Sanad (certificate) signed by the president and a sacred fig leaf-shaped medallion. Bharat Ratna recipients rank seventh in the Ind…

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Homi Jehangir Bhabha (30 October 1909 – 24 January 1966) was an Indian nuclear theoretical physicist who is widely credited as the "father of the Indian nuclear programme". He was the founding director and professor of physics at the Tata Institute of Fundamental Research (TIFR), as well as the founding director of the Atomic Energy Establishment, Trombay (AEET) which was renamed the Bhabha Atomic Research Centre in his honour. TIFR and AEET served as the cornerstone to the Indian nuclear energy and weapons programme. He was the first chairman of the Indian Atomic Energy Commission (AEC) and secretary of the Department of Atomic Energy (DAE). By supporting space science projects which initi…

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Utility of Raman Spectroscopy in Pulmonary Medicine.. The Raman effect, or as per its original description, "modified scattering", is an observation that the number of scattered light waves shifts after photons make nonelastic contact with a molecule. This effect allows Raman spectroscopy to be very useful in various fields. Although it is well known that Raman spectroscopy could be very beneficial in medicine as a diagnostic tool, there are not many applications of Raman spectroscopy in pulmonary medicine. Mostly tumor tissue, sputum and saliva have been used as material for analysis in respiratory medicine. Raman spectroscopy has shown promising results in malignancy recognition and even…

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The Nobel Prize in Physics is an annual award given by the Royal Swedish Academy of Sciences for those who have made the most outstanding contributions to humankind in the field of physics. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901, the others being the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and Nobel Prize in Physiology or Medicine. Physics is traditionally the first award presented in the Nobel Prize ceremony. The prize consists of a medal along with a diploma and a certificate for the monetary award. The front side of the medal displays the same profile of Alfred Nobel depicted on the medals…

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The Nobel Prize in Physics (Swedish: Nobelpriset i fysik) is awarded annually by the Royal Swedish Academy of Sciences to scientists who have made outstanding contributions in Physics. It is one of the five Nobel Prizes which were established by the will of Alfred Nobel in 1895. Every year, the Royal Swedish Academy of Sciences sends out forms, which amount to a personal and exclusive invitation, to about three thousand selected individuals to invite them to submit nominations. The names of the nominees are never publicly announced, and neither are they told that they have been considered for the Prize. Nomination records are strictly sealed for fifty years. As of 2025, the nominations for…

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Raman spectroscopy (; named after the physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. Raman spectroscopy is commonly used in chemistry to provide a structural fingerprint by which molecules can be identified. Raman spectroscopy relies upon inelastic scattering of photons, known as Raman scattering. A source of monochromatic light, usually from a laser in the visible, near infrared, or near ultraviolet range is used, although X-rays can also be used. The laser light interacts with molecular vibrations, phonons or other excitations in the system, r…