Optoacoustic and Photothermal Imaging and Microscopy

摘要: Modulated radiation shining on an absorbing sample causes a temperature modulation which can be detected in different ways. The classical method is based the gas pressure when kept gas-filled cell One also detect modulated thermal expansion of solid itself by using piezoceramic material or even strain gauge attached to it 2–4. While these are optoacoustic (also called photo-acoustic) methods5,6 photothermal detection monitored via infrared emission correlated with 7, as described P.E. Nordal and S.O. Kanstad this book. It true remote sensing like “mirage effect” where change deflection monitoring beam light 8 (see article D. Fournier A.C. Boccara book).