Algebraic expressions for the polarisation response of spin-VCSELs

Mike Adams, Nianqiang Li, Ben Cemlyn, Hadi Susanto, Ian Henning

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Closed-form expressions are derived for the relationship between the polarisation of the output and that of the pump for spin-polarised vertical-cavity surface-emitting lasers. These expressions are based on the spin-flip model (SFM) combined with the condition that the carrier recombination time is much greater than both the spin relaxation time and the photon lifetime. Allowance is also included for misalignment between the principal axes of birefringence and dichroism. These expressions yield results that are in excellent agreement both with previously published numerical calculations and with further tests for a wide range of parameters. Trends with key parameters of the SFM are easily deduced from these expressions.

Original languageBritish English
Article number064002
JournalSemiconductor Science and Technology
Issue number6
StatePublished - 2 May 2018


  • spin injection
  • spin-flip model
  • vertical-cavity surface-emitting lasers


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