title: Thermal effects in thin-film organic solid-state lasers.
abstract: With the recent development of organic solid-state lasers (OSSLs) architectures enabling power scaling and progresses towards continuous-wave operation, the question of thermal effects now arises in OSSLs. In this paper, a Rhodamine 640-PMMA based vertical external cavity surface emitting organic laser is investigated. A thermal microscope is used to record temperature maps at the organic thin film surface during laser action; those maps are compared with time-resolved finite element thermal simulations. The measured and simulated peak temperature rises are in good accordance and are shown to remain below 10 K in standard operating conditions, showing a negligible impact on performance. The validated model is used to investigate typical OSSL structures from the literature, in a virtual high average power regime, and up to the CW regime. It is shown that whenever true CW organic lasing will be realized, significant thermal effects will have to be considered and properly managed.
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Zhao
authors.forename: Oussama
authors.initials: O
authors.lastname: Mhibik
authors.forename: Tatiana
authors.initials: T
authors.lastname: Leang
authors.forename: Sébastien
authors.initials: S
authors.lastname: Forget
authors.forename: Sébastien
authors.initials: S
authors.lastname: Chénais
mesh_terms: D004396:Coloring Agents / Q000737:chemistry; D003198:Computer Simulation; D053844:Lasers, Solid-State; D009716:Numerical Analysis, Computer-Assisted; D055620:Optical Phenomena; D009930:Organic Chemicals / Q000737:chemistry*; D010782:Photolysis; D019904:Polymethyl Methacrylate / Q000737:chemistry; D013696:Temperature
chemical_list: D004396:Coloring Agents; D009930:Organic Chemicals; D019904:Polymethyl Methacrylate