Effect of superposition of light through a beam splitter on nonclassicality

Youngchul Kim, Tai Hyun Yoon, Kisik Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We analyzed the properties of superposition of light through a beam splitter and investigated the variations of the nonclassical measure and Mandel's Q-parameter. We found in the case of single input the output field possesses a reduced nonclassical measure due to the amplitude reduction through the beam splitter. In the case when two input fields are nonclassical, the output field becomes less nonclassical in a sense that the nonclassical measure (Q-parameter) of the output field is bounded below (above) a certain value subjected to the given transmittance or reflectance of the beam splitter. We also show that the nonclassical input field can be changed into a classical field as the result of superposition with thermal light.

Original languageEnglish
Pages (from-to)355-363
Number of pages9
JournalOptics Communications
Issue number4-6
Publication statusPublished - 2002 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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