Method and apparatus for localized infrared spectrocopy and micro-tomography using a combination of thermal expansion and temperature change measurements

A method of analyzing a sample, the method comprising:

• subjecting the sample to heat;
• measuring a temperature change of the sample during the subjecting step;
• and
• measuring a physical expansion of the sample during the subjecting step.

A method of analyzing a sample, the method comprising:

• subjecting the sample to electromagnetic radiation;
• measuring a first temperature change of the sample during the subjecting the sample to electromagnetic radiation step;
• subjecting the sample to heat;
• and
• measuring a second temperature change of the sample during the subjecting the sample to heat step.

A method of analyzing a sample, the method comprising:

• subjecting the sample to electromagnetic radiation;
• measuring a first temperature change of the sample during the subjecting the sample to electromagnetic radiation step;
• measuring a first physical expansion of the sample during the subjecting the sample to electromagnetic radiation step;
• subjecting the sample to heat;
• measuring a second temperature change of the sample during the subjecting the sample to heat step;
• and
• measuring a second physical expansion of the sample during the subjecting the sample to heat step.

An apparatus for analyzing a sample, the apparatus comprising:

• a source of electromagnetic radiation, the source subjecting the sample to the electromagnetic radiation;
• a source of heat, the source subjecting the sample to the heat;
• and
• a near field probe for measuring a first temperature change due to the electromagnetic radiation and a second temperature change due to the heat.

A system for determining a chemical tomography of a sample, the system comprising:

• means for irradiating the sample;
• means for measuring a value of a temperature change of the sample;
• means for measuring a value of a physical expansion of the sample;
• and
• means for generating the chemical tomography of the sample using at least the value of the temperature change and the value of the physical expansion.