NONLINEAR PHOTOTHERMAL IMAGING

被引：38

作者：

RAJAKARUNANAYAKE, YN

WICKRAMASINGHE, HK

机构：

[1] IBM, Yorktown Heights, NY, USA, IBM, Yorktown Heights, NY, USA

来源：

APPLIED PHYSICS LETTERS | 1986年 / 48卷 / 03期

关键词：

OPTICS - Nonlinear - TEMPERATURE DISTRIBUTION;

D O I：

10.1063/1.96800

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new technique is described whereby one can extract the nonlinear photothermal properties of a sample in photothermal microscopy. The basic scheme relies on chopping a pump heating beam at omega and detecting the temperature variation of the sample using a linear temperature sensor (in our case a mirage detector) tuned to 2 omega . Harmonic images of cracks and other samples show very high contrast when compared with the fundamental image.

引用

页码：218 / 220

页数：3

共 8 条

[1] NEW APPROACHES TO PHOTOTHERMAL SPECTROSCOPY [J].