Refractive Index Matching for Planar Laser-Induced Fluorescence Imaging of Fluid Mixing in Porous Media

Eric J Roth1,2, Ryan GERALD Tigera3, John P Crimaldi1 and David C Mays4, (1)University of Colorado Boulder, Department of Civil, Environmental and Architectural Engineering, Boulder, CO, United States, (2)University of Colorado at Boulder, Civil, Environmental, and Architectural Engineering, Boulder, CO, United States, (3)University of Colorado Denver, Denver, CO, United States, (4)University of Colorado Denver, Department of Civil Engineering, Denver, CO, United States