Thermo-optic refraction in MoS2 medium for “Normally on” all optical switch

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1016/j.optmat.2020.110777

Ключевые слова: 2d nanomaterials, all optical switch, molybdenum disulfide, optical modulation, thermal lens spectroscopy, thermal lensing

Аннотация: Two dimensional (2D) nanomaterials like Molybdenum disulfide (MoS2) have been drawing a lot of interest due to their excellent nonlinear optical response. In this research we study thermal lens formation in MoS2 nanoflakes dispersion using mode mismatched pump probe configuration. Observation of the pump and probe beam intensity paПоказать полностьюtterns gave visual insights on time evolution of photothermal lens formation. Effect of MoS2 nanoflakes concentration on thermo-optic properties of dispersions were studied using thermal lens spectroscopy technique. Further, a thermo-optic refraction based technique to measure thermal lens size is proposed. Thermal lens region size increased with increase in pump power. The observed thermal lens modulation is applied to demonstrate ‘normally on’ all optical switch which showed excellent modulation of output beam signal by pump beam. © 2020 Elsevier B.V.

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Издание

Журнал: Optical Materials

Выпуск журнала: Vol. 112

Персоны

  • Shetty Pritam P. (Indian Inst Informat Technol Design & Mfg IIITDM, Bioinspired Res & Dev BiRD Lab, Photon Devices & Sensors PDS Lab, Chennai 600127, Tamil Nadu, India)
  • Babu Mahalingam (Indian Inst Informat Technol Design & Mfg IIITDM, Bioinspired Res & Dev BiRD Lab, Photon Devices & Sensors PDS Lab, Chennai 600127, Tamil Nadu, India)
  • Maksimov Dmitrii N. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Bingi Jayachandra (Indian Inst Informat Technol Design & Mfg IIITDM, Bioinspired Res & Dev BiRD Lab, Photon Devices & Sensors PDS Lab, Chennai 600127, Tamil Nadu, India)