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Swapan K. Gayen
Swapan Kumar Gayen ( bn, স্বপন কুমার গায়েন) is a Bengali-American physicist. He is a professor of physics at the City University of New York. Education and career Gayen was born in a Bengali Kayastha family in Dhaka, Bangladesh. He completed his BSc (Hons) and MSc in physics from the University of Dhaka in 1977. In 1984, he received his PhD in physics from the University of Connecticut. His thesis was titled ''Two-photon absorption spectroscopy of the trivalent cerium ion in calcium fluoride''. After finishing his PhD, Gayen became a research associate at the City University of New York from 1984 until 1988. He then moved to the Stevens Institute of Technology as an assistant professor, where he remained until 1995. In 1995, he returned to CUNY, where he was promoted through the ranks, reaching the title of full professor of physics in 2007. He served as chair of the CUNY department of physics from 2016 until 2019. Gayen is a member of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacca
Dhaka ( or ; bn, ঢাকা, Ḍhākā, ), formerly known as Dacca, is the capital and largest city of Bangladesh, as well as the world's largest Bengali-speaking city. It is the eighth largest and sixth most densely populated city in the world with a population of 8.9 million residents as of 2011, and a population of over 21.7 million residents in the Greater Dhaka Area. According to a Demographia survey, Dhaka has the most densely populated built-up urban area in the world, and is popularly described as such in the news media. Dhaka is one of the major cities of South Asia and a major global Muslim-majority city. Dhaka ranks 39th in the world and 3rd in South Asia in terms of urban GDP. As part of the Bengal delta, the city is bounded by the Buriganga River, Turag River, Dhaleshwari River and Shitalakshya River. The area of Dhaka has been inhabited since the first millennium. An early modern city developed from the 17th century as a provincial capital and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Spectroscopy
Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter waves and acoustic waves can also be considered forms of radiative energy, and recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) In simpler terms, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum. Historically, spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a prism. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure and ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Missing (living People)
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City University Of New York Faculty
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organisations and businesses, sometimes benefiting different parties in the process, such as improving efficiency of goods and service distribution. Historically, city-dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stevens Institute Of Technology Faculty
Stevens may refer to: People * Stevens (surname), including a list of people with the surname Given name * Stevens Baker (1791–1868), farmer and member of the Legislative Assembly of Lower Canada * Stevens T. Mason (1811–1843), territorial governor of the Michigan Territory, first governor of the state of Michigan * Stevens Thomson Mason (Virginia) (1760–1803), a colonel in the American Continental Army and senator from Virginia, grandfather of the above Places * Stevens, Pennsylvania, an unincorporated community * Stevens, South Dakota, a ghost town * Stevens County, Kansas * Stevens County, Minnesota * Stevens County, Washington * Stevens Park (other), multiple locations * Stevens Point, Wisconsin * Stevens Township (other), multiple locations * Stevens Village, Alaska, a census-designated place * Lake Stevens, Washington, a lake and the surrounding city * Stevens Creek, various creeks * Stevens Pass, a pass through the Cascade Mountains in Washi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Connecticut Alumni
A university () is an educational institution, institution of higher education, higher (or Tertiary education, tertiary) education and research which awards academic degrees in several Discipline (academia), academic disciplines. Universities typically offer both undergraduate education, undergraduate and postgraduate education, postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Dhaka Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengali Physicists
Bengali or Bengalee, or Bengalese may refer to: *something of, from, or related to Bengal, a large region in South Asia * Bengalis, an ethnic and linguistic group of the region * Bengali language, the language they speak ** Bengali alphabet, the writing system ** Bengali–Assamese script *** Bengali (Unicode block), a block of Bengali characters in Unicode * Bengali, Nancowry, a village in Andaman and Nicobar Islands, India * , a ship launched in 1837 and wrecked in 1951 * Bengali, member of the ThunderCats * Bengali-Fodé Koita, Guinean footballer * Bengali Keïta, Guinean centre-back * Bengali Market, ancient market in New Delhi, India * Bengali River, river in northern Bangladesh * Bengali Singh, Indian politician * Abdul Wahid Bengali, 19th-century theologian * Ali Sher Bengali, 16th-century Sufi * Athar Ali Bengali, politician and teacher * Izzatullah Bengali, 18th-century Persian language author * Mohamed Bengali, Ivorian footballer * Muhammad Salih Bengali, 18th-century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photonics
Photonics is a branch of optics that involves the application of generation, detection, and manipulation of light in form of photons through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Though covering all light's technical applications over the whole spectrum, most photonic applications are in the range of visible and near-infrared light. The term photonics developed as an outgrowth of the first practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s. History The word 'Photonics' is derived from the Greek word "phos" meaning light (which has genitive case "photos" and in compound words the root "photo-" is used); it appeared in the late 1960s to describe a research field whose goal was to use light to perform functions that traditionally fell within the typical domain of electronics, such as telecommunications, information processing, etc. Photonics as a field began with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bangladesh
Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the most densely populated countries in the world, and shares land borders with India to the west, north, and east, and Myanmar to the southeast; to the south it has a coastline along the Bay of Bengal. It is narrowly separated from Bhutan and Nepal by the Siliguri Corridor; and from China by the Indian state of Sikkim in the north. Dhaka, the capital and largest city, is the nation's political, financial and cultural centre. Chittagong, the second-largest city, is the busiest port on the Bay of Bengal. The official language is Bengali, one of the easternmost branches of the Indo-European language family. Bangladesh forms the sovereign part of the historic and ethnolinguistic region of Bengal, which was divided during the Partition of India in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Academy Of Sciences
The New York Academy of Sciences (originally the Lyceum of Natural History) was founded in January 1817 as the Lyceum of Natural History. It is the fourth oldest scientific society in the United States. An independent, nonprofit organization with more than members in 100 countries, the academy has a mission to advance scientific research and knowledge, support scientific literacy, and promote science-based solutions to global challenges. The academy hosts programs and publishes scholarly scientific content in the life, physical, and social sciences, including several areas of cross-discipline inquiry such as nutrition, artificial intelligence, space exploration, and sustainability. The academy's programs and publications are designed to discuss and disseminate accurate and timely scientific information to its members, the broad scientific community, the media, and the public. The academy also provides professional and educational resources for researchers across all phases of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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