Prokhorov and Basov suggested optical pumping of a multi-level system as a method for obtaining the population inversion
Time: 1955
Place: U.S.S.R.
Details: Meanwhile, in the Soviet Union, Nikolay Basov and Aleksandr Prokhorov were independently working on the quantum oscillator and solved the problem of continuous-output systems by using more than two energy levels. These gain media could release stimulated emissions between an excited state and a lower excited state, not the ground state, facilitating the maintenance of a population inversion. In 1955, Prokhorov and Basov suggested optical pumping of a multi-level system as a method for obtaining the population inversion, later a main method of laser pumping.
‹ Earlier in historyDoctoral StudiesSunday Jun 19, 1955 Later in history ›The Russell–Einstein ManifestoSaturday Jul 9, 1955
Best-effort ordering. Some events may appear out of order since many are only known to the year, but they are usually around the same period.
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1905 Russian Revolution-Workers surrendered
Monday Dec 18, 1905 - Russian Empire
Operation Mincemeat-Solving the problem of freezing Michael's corpse feet
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Garry Kasparov-Kasparov announced his intention of standing for the Russian presidency as the candidate of the "Other Russia"
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Ayman al-Zawahiri-Imprisonment in Russia
Tuesday Apr 1, 1997 - Russia
Vietnam War-Operation Giant Lance
Monday Oct 27, 1969 - Soviet Union, (Russia)
First Chechen War-Like most of the other seceding republics
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Laser-Prokhorov independently proposed using an open resonator, the first published appearance (in the USSR) of this idea
1958 - U.S.S.R.
World War 1-Russian Support
Wednesday Jul 29, 1914 - Russia
Laser-Zhores Alferov, Izuo Hayashi and Morton Panish independently developed room-temperature, continual-operation diode lasers, using the heterojunction structure
1970 - U.S.S.R.
1955
Vietnam War-Cambodia is neutral
1955 - Cambodia
Juan Carlos I-Joining The Army
1955 - Military Academy, Zaragoza, Spain.
Algerian War-The Soustelle Plan
Jan, 1955 - Algeria
Margaret Thatcher-The Orpington by-election
Jan, 1955 - England
Neil Armstrong-College Graduation
Jan, 1955 - Purdue University, West Lafayette, Indiana, U.S.
Fidel Castro-Divorce
1955 - Cuba
Carlos Slim-Shareholder in Mexico's Largest Bank
1955 - Mexico City, Mexico
World Trade Organization-Geneva Round: 1955–56
Jan, 1955 - Geneva, Switzerland
Rosa Parks-Attending the Highlander Folk School
1955 - Monteagle, Tennessee, U.S.
Pam Foreman Testroet-Birth
1955 - U.S.
Marilyn Monroe-Marilyn Monroe Productions Announcement
Friday Jan 7, 1955 - U.S.
Dwight D. Eisenhower-Eisenhower requested and secured from Congress their "Free China Resolution"
Jan, 1955 - Washington D.C., U.S.
Dwight D. Eisenhower-Operation Teapot
1955 - U.S.
Edward VIII-Edward visited President Dwight D. Eisenhower
1955 - Washington D.C., U.S.
Princess Margaret, Countess of Snowdon-Margaret made the first of many trips to the Caribbean
Jan, 1955 - The Caribbean
Computer-The First Completely Transistorized Computer
Feb, 1955 - Harwell, Didcot, England
Dwight D. Eisenhower-Eisenhower dispatched the first American soldiers to Vietnam as military advisors to Diem's army
Feb, 1955 - Then South Vietnam
Mamie Till-Emmett traveled to Mississippi
1955 - Chicago, Illinois, United States
Audrey Hepburn-Hepburn received the Golden Globe for World Film Favorite that year
Thursday Feb 24, 1955 - Los Angeles, California, U.S.
Algerian War-Rabah Bitat was arrested by the French
Mar, 1955 - Algeria
Neil Armstrong-Armstrong made his First Test Flight
Tuesday Mar 1, 1955 - Cleveland, Ohio, U.S.
Martin Luther King-Claudette Colvin
Wednesday Mar 2, 1955 - southern United States, Dixie, Dixieland, U.S.
World Bank-Economic Development Institute
Friday Mar 11, 1955 - Washington D.C., U.S.
Jair Bolsonaro-Birth
Monday Mar 21, 1955 - Glicério, São Paulo, Brazil
Brexit-Messina Conference
1955 - Messina, Sicily, Italy
Vietnam War-Diệm eliminated any political opposition in the south
Apr, 1955 - South Vietnam
Hungarian Revolution of 1956-Rákosi Removed Nagy From Office
Apr, 1955 - Hungary
Winston Churchill-Churchill retired as Prime Minister
Tuesday Apr 5, 1955 - England, United Kingdom
James Bond-Moonraker was published
Tuesday Apr 5, 1955 - United Kingdom
W. E. B. Du Bois-U.S. government prevented Du Bois from attending the 1955 Bandung Conference
Monday Apr 18, 1955 - Bandung, Indonesia
Albert Einstein-Death
Monday Apr 18, 1955 - New Jersey, United States
NATO Establishment-West Germany Joined NATO
May, 1955 - Bonn, Germany
NATO Establishment-The Creation of The Soviet-dominated Warsaw Pact
Saturday May 14, 1955 - Warsaw, Poland
Hungarian Revolution of 1956-The Warsaw Pact
Saturday May 14, 1955 - Warsaw, Poland
Fidel Castro-Castro's Release
Sunday May 15, 1955 - Isla de la Juventud, Cuba
Princess Margaret, Countess of Snowdon-Daily Express published an editorial demanding that Buckingham Palace confirm or deny the rumors
Saturday May 21, 1955 - London, England, United Kingdom
Kroger-Kroger entered the Houston
May, 1955 - Houston, Texas, United States
Mikhail Gorbachev-Graduation
Jun, 1955 - Moscow, Russia
Bay of Pigs Invasion-26th of July Movement
Sunday Jun 12, 1955 - Cuba
Martin Luther King-Doctoral Studies
Sunday Jun 19, 1955 - Boston, Massachusetts, U.S.
Atomic Bomb-The Russell–Einstein Manifesto
Saturday Jul 9, 1955 - London, England
Neil Armstrong-Neil reported for work at High-Speed Flight Station
Monday Jul 11, 1955 - Edwards Air Force Base, California, U.S.
Walt Disney-The Opening of Disneyland
Sunday Jul 17, 1955 - Disneyland Resort, 1313 Disneyland Dr, Anaheim, California, U.S.
Dwight D. Eisenhower-Open Skies
Monday Jul 18, 1955 - Geneva, Switzerland
Kroger-Kroger purchased Child's Food Stores
Jul, 1955 - Jacksonville, Texas, United States
KFC-Traveling the U.S.
1955 - U.S.
Mikhail Gorbachev-Stavropol Komsomol
Aug, 1955 - Stavropol Krai, Russia
KFC-First in Canada
1955 - Saskatoon, Saskatchewan, Canada
Princess Margaret, Countess of Snowdon-Margaret wrote to Prime Minister Anthony Eden
Aug, 1955 - England, United Kingdom
First Sudanese Civil War-Members of The British-administered Sudan Defence Force Equatorial Corps Mutinied
Thursday Aug 18, 1955 - Torit, South Sudan
Algerian War-The massacre of Pieds-Noirs
Saturday Aug 20, 1955 - Skikda, Algeria
Princess Margaret, Countess of Snowdon-Margaret was free to marry
Sunday Aug 21, 1955 - Scotland, United Kingdom
Mamie Till-Emmett was killed
1955 - Chicago, Illinois, United States
Gary Webb-Webb birth
Wednesday Aug 31, 1955 - Corona, California, U.S.
Dwight D. Eisenhower-Eisenhower was recovering from a heart attack late in September 1955
Sep, 1955 - U.S.
Richard Nixon-President Eisenhower suffered a heart attack
Saturday Sep 24, 1955 - White House, Washington D.C., U.S.
Dwight D. Eisenhower-Serious heart attack
Saturday Sep 24, 1955 - Colorado, U.S.
Princess Margaret, Countess of Snowdon-More than 100 journalists waited at Balmoral when Eden arrived to discuss the marriage with the Queen and Margaret
Saturday Oct 1, 1955 - Scotland, United Kingdom
Princess Margaret, Countess of Snowdon-Townsend returned from Brussels
Wednesday Oct 12, 1955 - England, United Kingdom
Princess Margaret, Countess of Snowdon-Margaret may have told Townsend that governmental and familial opposition to their marriage had not changed
Wednesday Oct 12, 1955 - England, United Kingdom
Princess Margaret, Countess of Snowdon-NOW - THE NATION WAITS
Saturday Oct 15, 1955 - London, England, United Kingdom
Princess Margaret, Countess of Snowdon-Leslie Hutchinson had a "brief liaison" with Margaret
1955 - England, United Kingdom
Princess Margaret, Countess of Snowdon-NO RING YET!
Monday Oct 17, 1955 - England, United Kingdom
Princess Margaret, Countess of Snowdon-First time the palace discussed the princess's recent personal life
Oct, 1955 - London, England, United Kingdom
Vietnam War-Referendum on the future of the State of Vietnam
Sunday Oct 23, 1955 - Vietnam
Kroger-Kroger began acquiring supermarket chains
1955 - Cincinnati, Ohio, United States
Kroger-Kroger acquired the Krambo Food Stores
Oct, 1955 - Appleton, Wisconsin, United States
Princess Margaret, Countess of Snowdon-The QUEEN's sister married to a divorced man (even though the innocent party) would be irrevocably disqualified from playing her part in the essential royal function
Wednesday Oct 26, 1955 - London, England, United Kingdom
Bill Gates-Birth
Friday Oct 28, 1955 - Seattle, Washington, U.S.
Princess Margaret, Countess of Snowdon-Margaret would announce that she would marry Townsend and leave the line of succession
Friday Oct 28, 1955 - England, United Kingdom
Princess Margaret, Countess of Snowdon-Daily Mirror on 28 October discussed The Times's editorial with the headline "THIS CRUEL PLAN MUST BE EXPOSED"
Friday Oct 28, 1955 - England, United Kingdom
Dwight D. Eisenhower-RDS-37
Nov, 1955 - Semipalatinsk Test Site, U.S.S.R. (Present-Day in Kazakhstan)
Rosa Parks-Rosa Parks attended a mass meeting at Dexter Avenue Baptist Church
Sunday Nov 27, 1955 - Montgomery, Alabama, U.S.
Martin Luther King-Rosa Parks
Thursday Dec 1, 1955 - Montgomery, Alabama, U.S.
Rosa Parks-Parks was Arrested
Thursday Dec 1, 1955 - Montgomery, Alabama, U.S.
Rosa Parks-The 2nd bus Incident
Thursday Dec 1, 1955 at 06:00:00 PM - Montgomery, Alabama, U.S.
Rosa Parks-The Montgomery Bus boycott
Sunday Dec 4, 1955 - Montgomery, Alabama, U.S.
Rosa Parks-Parks was tried on charges of disorderly conduct and violating a local ordinance
Monday Dec 5, 1955 - Montgomery, Alabama, U.S.
Rosa Parks-Discussing The boycott Strategies
Monday Dec 5, 1955 - Montgomery, Alabama, U.S.
Rosa Parks-Discussing actions to respond to Parks' arrest
Monday Dec 5, 1955 - Montgomery, Alabama, U.S.
Francisco Franco-Admitted to the United Nations
Wednesday Dec 14, 1955 - Spain
Russell Bufalino-Frank Sheeran
1955 - U.S.
Nintendo-Hiroshi Yamauchi
1955 - Kyoto, Japan