Isamu Akasaki receiving his Nobel Prize from His Majesty King Carl XVI Gustaf of Sweden at the Stockholm Concert Hall, 10 December 2014.

© Nobel Media AB 2014. Photo: Alexander Mahmoud

Isamu Akasaki after receiving his Nobel Prize at the Stockholm Concert Hall, 10 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

Isamu Akasaki receiving his Nobel Prize from His Majesty King Carl XVI Gustaf of Sweden. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Nobel Laureates at the Nobel Prize Award Ceremony. From left: Physics Laureates Isamu Akasaki, Hiroshi Amano and Shuji Nakamura; Chemistry Laureates Eric Betzig, Stefan W. Hell and William E. Moerner; Medicine Laureates John O'Keefe and May-Britt Moser. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Isamu Akasaki receiving his Nobel Prize. Overview from Nobel Prize Award Ceremony at the Stockholm Concert Hall, 10 December 2014.

© Nobel Media AB 2014. Photo: Alexander Mahmoud

Isamu Akasaki with his wife, Mrs Ryoko Akasaki, on stage after the Nobel Prize Award Ceremony at the Stockholm Concert Hall, 10 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

Isamu Akasaki arrives at the Nobel Banquet at the Stockholm City Hall on 10 December 2014, together with his wife, Mrs Ryoko Akasaki.

© Nobel Media AB 2014. Photo: Helena Paulin-Strömberg

Isamu Akasaki (right) at the Nobel Banquet table. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

The Swedish Royals receive the Nobel Laureates and their significant others in the Prince's Gallery after the Nobel Banquet. From left to right: Her Majesty Queen Silvia, Nobel Laureate Isamu Akasaki, Mrs Ryoko Akasaki and His Majesty King Carl XVI Gustaf of Sweden. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Isamu Akasaki delivering his Nobel Lecture.

Copyright © The Royal Swedish Academy of Sciences 2014 Photo: Sara Gustavsson

Isamu Akasaki after delivering his Nobel Lecture "Fascinated Journeys into Blue Light" in the Aula Magna, Stockholm University, 8 December 2014.

Copyright © Nobel Media 2014

All three Physics Laureates on stage after the Nobel Lectures in the Aula Magna, Stockholm University, 8 December 2014. From left: Shuji Nakamura, Isamu Akasaki and Hiroshi Amano.

Copyright © Nobel Media 2014

All three Physics Laureates assembled at the Royal Swedish Academy of Sciences on 7 December 2014. From left: Hiroshi Amano, Isamu Akasaki and Shuji Nakamura.

Copyright © The Royal Swedish Academy of Sciences 2014 Photo: Markus Marcetic