PT-axisymmetric VCSELS

Waqas Waseem Ahmed

Universitat Politècnica de Catalunya

He is a joint PhD student at the Universitat Politècnica de Catalunya (UPC), Barcelona, Spain and European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Italy. Since 2014, he has started his PhD in Europe, sponsored by European Commission under Erasmus Mundus Joint Doctorate (EMJD) Europhotonics program. His PhD study is mainly on dynamics of non-Hermitian and complex modulated optical systems.


Optical Parity-Time (PT-) symmetric systems support unusual properties when the symmetric coupling between internal modes is broken [1,2]. The simplest PT-symmetric 1D optical potential may be taken as: n(x) = n0 exp(iqx),... [ view full abstract ]


  1. Waqas Waseem Ahmed (Universitat Politècnica de Catalunya)
  2. Muriel Botey (Univeritat Politècnica de Catalunya)
  3. Ramon Herrero (Universitat Politècnica de Catalunya)
  4. Kestutis Staliunas (Institució Catalana de Recerca i Estudis Avançats, Catalonia)

Topic Areas

Photonic & plasmonic nanomaterials , Optical properties of nanostructures , Nonlinear nano-optics


OS2b-R207 » Nonlinear nano-optics (16:50 - Thursday, 14th September, Room 207)

Presentation Files

The presenter has requested not to share their files.