Thermally excited near-field source
AssigneeInternational Business Machines Corporation
InventorsHendrik F. Hamann, Snorri Ingvarsson, James A. Lacey
Life of this patent
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Abstract
A high resolution material observation system includes an object having at least one spatial dimension sufficient to support production of near-field infrared emissions, a holder adapted to receive a sample to be observed, the holder further adapted to position the sample in the near-field infrared emissions, and a thermal excitation unit, adapted to be thermally coupled to at least one of the object and the sample. The thermal excitation unit is further adapted to causing black body radiation in either the object or the sample within the infrared spectrum.
Claims15
A high resolution material observation system, comprising:
- an object having at least one spatial dimension sufficient to support production of near-field infrared emissions;
- a holder adapted to receive a sample to be observed,
- wherein one of the object and the sample operates as a near-field infrared source, and wherein one of the object and the sample is a near-field infrared receiver, the near-field infrared receiver being different than the near-field infrared source, and
- wherein the holder is further adapted to position the sample so as to place the near-field infrared receiver in the near-field infrared emissions produced by the near-field infrared source;
- a thermal excitation unit, adapted to be thermally coupled conductively to the near-field infrared source so as to conduct thermal energy to and thermally excite the near-field infrared source, thereby generating a temperature difference between the object and the sample so as to cause black body radiation within the infrared spectrum;
- and
- a detector operable to measure at least one of a far-field response and a near-field response, the at least one of the far-field response and the near-field response produced by an excitation of the near-field infrared receiver by the near-field infrared emission produced by the near-field infrared source.
A method for high-resolution observation of material, the method comprising:
- thermally exciting, with a thermal excitation unit, a near-field infrared source, the near-field infrared source comprising one of an object having at least one spatial dimension sufficient to support production of near-field infrared emissions and a sample,
- the thermal excitation unit being thermally coupled conductively to the near-field infrared source so as to conduct thermal energy to and thermally excite the near-field infrared source, thereby generating a temperature difference between the object and the sample so as to cause black body radiation within the infrared spectrum;
- positioning the sample so as to place a near-field receiver in the near-field infrared emissions, wherein the near-field receiver is one of the object and the sample, and wherein the near-field receiver is different than the near-field infrared source;
- and
- measuring at least one of a far-field response and a near-field response, the at least one of the far-field response and the near-field response produced by an excitation of the near-field receiver by the near-field infrared emission produced by the near-field infrared source.
A computer program product for high-resolution observation of material, the computer program product comprising:
- a storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
- thermally exciting, with a thermal excitation unit, a near-field infrared source, the near-field infrared source comprising one of an object having at least one spatial dimension sufficient to support production of near-field infrared emissions and a sample,
- the thermal excitation unit being thermally coupled conductively to the near-field infrared source so as to conduct thermal energy to and thermally excite the near-field infrared source, thereby generating a temperature difference between the object and the sample so as to cause black body radiation within the infrared spectrum;
- positioning the sample so as to place a near-field receiver in the near-field infrared emissions, wherein the near-field receiver is one of the object and the sample, and wherein the near-field receiver is different than the near-field infrared source;
- and
- measuring at least one of a far-field response and a near-field response, the at least one of the far-field response and the near-field response produced by an excitation of the near-field receiver by the near-field infrared emission produced by the near-field infrared source.
Dependencies are inferred from the claim text.