Host: Technical University of Denmark (DTU)
Secondments: Technical University of Darmstadt (TUDA) and Innolume
PhD Project: Wideband MEMS VCSEL
MEMS VCSELs are semiconductor-based light sources, have a very small footprint owing to the vertical cavity design. Generally, very highly reflective DBR mirrors along with III-V active material are used to define the cavity. Actuation of one of the mirrors contributes to changing the length of optical cavity and thus continuously tuning the emitting wavelength. The continuous sweep of wavelength makes them promising for low cost OCT applications. In the current project, we will mainly investigate the high-speed wideband MEMS VCSELs for SS-OCT.
Completed workshops, Seminars, and Conferences:
- 1st NETLAS Online Event, 01/07/2021
- 2nd NETLAS Event, Winter School, DTU, Denmark, 1-4th March 2022
- 3rd NETLAS Event, Autumn School, Technical University of Darmstadt (TUDA), Germany, 4-7th October 2022
- Danish Optics and Photonics Congress , Aarhus University, Denmark, 29th November 2022-1st December 2022
- Siegman Summer School on Lasers, Dublin City University, Ireland, 18-24th June 2023
- 4th NETLAS Event, NETLAS Conference in conjunction with Markus Pessa International Summer School “New Frontiers in Optical Technologies”, Tampere, Finland, August 7 – 11, 2023
- Numerical Simulation of Optoelectronic Devices Conference and VCSEL-Day Conference, Polytechnic University of Turin, 18-22nd September 2023
- 49th international conference on Micro and Nano Engineering, Berlin Germany, 25-28 September 2023
Publications:
- Arnhold Simonsen, Masoud Payandeh, Søren Engelberth Hansen, Andrey Marchevsky, Gyeong Cheol Park, Hitesh Kumar Sahoo, Elizaveta Semenova, Ole Hansen, and Kresten Yvind, “Bidirectional electrostatic MEMS-tunable VCSELs,” Opt. Lett. 49, 802-805 (2024), https://doi.org/10.1364/OL.510273
- Arnhold Simonsen; Søren Engelberth Hansen; Masoud Payandeh; Andrey Marchevsky et al., “Bidirectional electrostatic MEMS tunable VCSELs,” 2021 27th International Semiconductor Laser Conference (ISLC), Potsdam, Germany, 2021, pp. 1-2, doi: 10.1109/ISLC51662.2021.9615710.
- Masoud Payandeh, Hitesh Kumar Sahoo, Marika Janka, Jukka Viheriälä, Mircea Guina, Elizaveta Semenova, kresten Yvind, Esteban Andres Proano Grijalva, “Bidirectional 1310 nm MEMS VCSEL”, Proceedings Volume PC12904, Vertical-Cavity Surface-Emitting Lasers XXVIII; PC1290409 (2024) https://doi.org/10.1117/12.3002368
Previous education:
*BSc in Electrical Engineering, Electronics, Shiraz University, Iran
**MSc in Micro and Nano-electronic Devices, Tarbiat Modares University, Iran.