We have generated planar blast waves over the large area using carbon\nnanotubes(CNT)-poly-dimethylsiloxane(PDMS) optoacoustic transducer. Pulse laser\nis absorbed by CNT and converted to heat, and the heat is transferred to PDMS\ninducing its thermal expansion and blast wave generation. To theoretically describe\nthe planar blast wave generation, we build one-dimensional simulation model and\nfind analytical solutions for temperature and pressure distributions. The analytical\nsolution validated by the experimental data sheds light on how to improve the performance\nof the new transducer. Resonance of acoustic waves inside the transducer is\nalso discussed. The new optoacoustic transducer optimized based on the fundamental\nunderstandings will be useful in generating high quality blast waves for research\nand industrial applications.
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