Jahr | 2006 |
Autor(en) | Hui Sun |
Titel | All-solid-state femtosecond medical lasers and nonlinear laser-tissue interactions |
KIP-Nummer | HD-KIP 06-10 |
KIP-Gruppe(n) | F1 |
Dokumentart | Dissertation |
Abstract (en) | This dissertation describes the development of an all-solid-state ultrafast laser system, including a Nd:glass femtosecond laser and a Nd:YAG picosecond laser. Experiments in this dissertation also includes the results from a Yb:KYW femtosecond laser. Diode pumped all-solid-state ultrafast lasers are promising for mini-invasive refractive surgery and keratoplasty. A fundamental systematical study concerning ultrafast laser tissue interactions is crucial before applying the state of the art laser technology to ophthalmic applications. The pulse width of the ultrafast laser pulses ranges from 800 femtoseconds to 20 picoseconds. The corneal ablation threshold as a function of the laser pulse width and the depth in the corneal stroma was precisely determined by simultaneous monitoring of the intensity of the laser-induced plasma and the second harmonic generation signals. Systematic investigations of the ultrafast laser-tissue interaction based on ex-vivo nonlinear multi-photon microscopy were performed. |
Datei | Titelblatt |
Datei | Dissertation |