Sensitive high-resolution white-light Schlieren technique with a large dynamic range for the investigation of ablation dynamics.
We developed a modified Hoffman contrast technique with a 12 ns pulsed incoherent extended white-light source that enables an easily interpretable visualization of ablation plumes with high resolution, a large dynamic range, and color information. By comparison, a conventional dark-field setup with a slitlike laser light source provides large sensitivity but a small dynamic range, and it is difficult to interpret the filtered images.
Vogel
Alfred
A
Institute of Biomedical Optics, University of Lübeck, Peter-Monnik Weg 4, D-23562 Lübeck, Germany. vogel@bmo.uni-luebeck.de
Apitz
Ingo
I
Freidank
Sebastian
S
Dijkink
Rory
R
D000465:Algorithms; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D053685:Laser Therapy / Q000379:methods*; D019047:Phantoms, Imaging; D012031:Refractometry / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000379:methods*