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Apparatus and methods for probing a material as a function of depth using depth-dependent second harmonic generation
Apparatus and methods for probing a material as a function of depth using depth-dependent second harmonic generation
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机译:使用依赖于深度的二次谐波生成来探测作为深度函数的材料的设备和方法
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摘要
A method for non-invasively probing at least one physics property of a solid material. In one embodiment, the method has the steps of splitting a photon beam into a first photon beam and a second photon beam, exposing the solid material to the first photon beam to generate a coherent acoustic phonon wave in the solid material at time t, and exposing the solid material to the second photon beam at a time t+Δt, where t+Δt≥t, to generate corresponding second harmonic generation signals, where from the corresponding second harmonic generation signals, the at least one physics property of the solid material is determinable.
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