Gandubert, Gabriel, Nkeck, Joel Edouard, Ropagnol, Xavier, Morris, Denis and Blanchard, François.
2024.
« Spatial and temporal thermal management of a spintronic terahertz emitter ».
Applied Physics Express, vol. 17, nº 8.
Preview |
PDF
Blanchard-F-2024-29436.pdf - Published Version Use licence: Creative Commons CC BY. Download (993kB) | Preview |
Abstract
This work presents methods for addressing undesirable thermal effects induced by the pump beam of an oscillator laser to improve the efficiency of a terahertz (THz) spintronic emitter. We explore two approaches: spatial distribution of pump energy using a 2D lens array and temporal modulation of the pump duty cycle. Optimizing the spatial distribution approximately doubles the THz signal by increasing local heat dissipation, delaying the saturation limit. Similarly, temporal spreading of pump pulses by adjusting the duty cycle allows greater thermal relaxation within the heterostructure, enhancing the overall efficiency of THz wave generation.
Item Type: | Peer reviewed article published in a journal |
---|---|
Professor: | Professor Blanchard, François |
Affiliation: | Génie électrique |
Date Deposited: | 10 Sep 2024 15:56 |
Last Modified: | 28 Oct 2024 14:55 |
URI: | https://espace2.etsmtl.ca/id/eprint/29436 |
Actions (login required)
View Item |