Optical Pump-Probe Techniques

Optical Pump-Probe techniques provide ultrafast, high-resolution thermal characterization by using a modulated pump laser to heat a sample and a probe laser to measure temperature-dependent changes in reflectivity. This method is critical for analyzing thin films, semiconductor devices, and nanoscale materials.

The pump laser delivers a controlled energy pulse to a material, causing localized heating. A probe laser then measures the resulting reflectivity changes, allowing researchers to extract crucial thermal properties such as:

• Thermal Conductivity – The ability of a material to conduct heat.
• Thermal Diffusivity – The speed at which heat propagates through the material.
• Interfacial Thermal Resistance – Heat transfer efficiency between different material layers.

• Sub-Micron Spatial Resolution – Analyze small-scale thermal behavior in advanced materials.
• Nanosecond to Picosecond Temporal Resolution – Capture ultrafast thermal events.
• Non-Destructive Testing – Perform material analysis without physical contact.
• Versatile Material Compatibility – Works with metals, semiconductors, and photonics materials.
• Ideal for Multi-Layer Analysis – Optimize heat dissipation in 3DIC, MEMS, and optoelectronic devices.

• Semiconductor & IC Packaging – Improve thermal efficiency in high-density circuits.
• Photonics & Optoelectronics – Evaluate laser diodes, optical coatings, and integrated photonics.
• Thermal Interface Materials (TIMs) Research – Measure thermal properties of adhesives and composite materials.
• Material Science & Nanotechnology – Study thermal behavior in quantum materials and thin films.