Thermocouple Probes

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Nanonics produces unique cantilevered thermocouples probes. Thermocouple probe operate has a capabilities of the AFM probe with ability to measure the temperature distribution with high resolution. In addition this thermocouple probe can operate as a apertureless optical sensor.

 

 

Probe design: The external metal coating extends over the protruding wire at the tip to create a junction across which the voltage drop is temperature dependent. The time response of this thermocouple is orders of magnitude higher than any other thermocouple in existence. Thus, one gains the ability to perform both static and dynamic thermal measurements in much localized regions with high precision. measure the temperature distribution with high resolution. In addition this thermocouple probe can operate as a apertureless optical sensor.

 

 

KEY FEATURES

HIGH SENSITIVITY
EXPOSED TIP FOR OPTICAL INTEGRATION
MULTIPROBE CAPABILITES
Thermocouple probe has a high sensitivity and microseconds response time due to the nano metric size of the thermal junction. Thus this probe operates as AFM probe with ability to measure temperature distribution and topgraphy with high resolution&nbsp
Provides complete optical access from above and below for full integration with optical microscopes, Raman spectrometers and thus enables to combine thermal imaging with optical and spectral measurements. 
Cantilevered shape and exposed tip enable to bring the tips of the thermocouple probe and probe for other SPM methods ( AFM, NSOM, Conductive, Nanoheater)  within nanometric distance one to another. The multiprobe capabilities allow to study heat transport properties as function of optical, electrical and other action on the nanoscale level.   

 

SPECIFICATIONS:
MINIMUM SENSING AREA
THEMAL RESPONSE TIME
TEMPERATURE SENSITIVITY
EMF COEFFICIENT ( Pt/Au)/td>
OPERATING RANGE
SHANK DIAMETER
TAPER LENGTH
TOTAL LENGTH
ELECTRODE MATERIAL
COATING MATERIAL
PIPETTE MATERIAL
CANTILEVER LENGTH
FORCE CONSTANT (BEAM BOUNCE/LASER BASED FEEDBACK)
RESONANSE FREQUENCY ( TUNING FORK FEEDBACK)
>100 nm
m
5>0.5 µs
10 milli-degrees
6-7 µV/degree C°
More that 400
1.0-1.5 mm
3-10 mm
5 mm- 5 cm
Pt
Au
Borosilicate glass
100- 1000 µm
5-20 N/m
34.2 kHz

 

Applications

Temperature Distribution In Plasmonic Structures

The capability of measuring temperature distribution of plasmonic structures at the nanoscale is shown to be a powerful tool and may be used in applications related to thermal plasmonic applications such as control heating of liquids, thermal photovoltaic, nanochemistry, medicine, heat-assisted magnetic memories, and nanolithography.

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SThM measurement showing the temperature map of the plasmonic nanofocusing device (right).
"Direct Temperature Mapping of Nanoscale Plasmonic Devices" Boris Desiatov, Ilya Goykhman, and Uriel Levi Nanoletters, dx.doi.org/10.1021/nl403872d | Nano Lett. 2014
Multiprobe Heat Transport
thermo5
A Scanning Thermocouple Measuring Heat Transport Of Gold Electrodes On Silicon.
thermo6
The 3D Overlap Image is the Collage Of The Temperature Map (Colors) On The Topography (Right). The Red Arrow (Extreme Right Image) Shows The Heating Probe Temperature in 3D.

 

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