Gravitational lensing: dark energy models in non-flat FRW Universe

Abstract In a non-flat FRW model, we have considered our Universe to be filled with non-interacting dark energy and matter. For the models, assumed Tachyonic Field (TF), Generalized Cosmic Chaplygin Gas (GCCG), New Variable Modified (NVMCG), Chaplygin–Jacobi (MCJG), Chaplygin–Abel (MCAG). We then analyzed these models varying cosmological parameters in their optical depth behaviour presented result graphically. Later on, comparison of findings corresponding flat $$\Lambda CDM$$ Λ C D M model has also been presented.