The history of semiconductor injection lasers is briefly outlined and the need for lasers integrated on Si chips is explained. Several approaches to overcome inadequate properties of silicon are followed; including (i) silicon nanocrystals and other lowdimensional structures (ii) Si Raman laser, (iii) rare-earth doped Si, and (iv) non-silicon-material lasers integrated to Si chips. Finally, the recent germanium laser is described., Jan Valenta., and Obsahuje bibliografii
Motto z webu JB: "Víš ty, že většina vědců vůbec neuznává existenci magie? Když přidáš magii do energetické rovnice, tak se ukáže, že skoro všechny současné zákony fyziky mají vážné trgliny." Eoin Colfer v knize Artemis Fowl a ztracený ostrov and Jiří Bouchala. (Otázky kladl Jan Valenta.)
Starting with the basic principles of light emitting diodes (LED), the history of blue LED development is briefly described in order to justify and explain the awarding of the Nobel Prize for physics in 2014 to I. Akasaki, H. Amano and S. Nakamura. Exploitation of blue LEDs in lighting techniques enables a substantial decrease in energy consumation and enables emerging smart applications, which could be considered as the most important lighting revolution after the introduction of incandescent bulbs more than a century ago., Jan Valenta, Ivan Pelant., and Obsahuje seznam literatury