Learning center

Let’s get started learning the analytical principles and basics of laser micro-spectroscopy behind ScienceEdge’s cutting-edge products.

•  Introduction to time-domain thermoreflectance (TDTR)
•  Basic principles of time-domain thermoreflectance (TDTR)
•  Introduction to frequency-domain thermoreflectance (FDTR)
•  Introduction to broadband frequency-domain thermoreflectance (BB-FDTR)
•  About focus

PapersPicks

PapersPicks is the educational material that picks academic papers with a Creative Commons CC BY license that are consistent with the theme of the material and presents measurement data and discussion.

•  Investigation of thermal properties of chalcogenide-based phase-change materials using thermoreflectance method
•  Evaluation of thermal transport and phonon MFPs of wide bandgap semiconductor materials using thermoreflectance method

Topics scheduled.

• History of focus
• Technologies based on the laser focus
• Light ray and wave
• The focus of coherent light and incoherent light
• Scalar theory
• Vector theory and polarization
• Pupil and focal
• Emission, scattering and NA, WD solid angle and sensitivity
• Type of microscope objective lenses
• Aberration chromatic aberration.
• Fresnel lens
• The size of focal spot
• PSF
• Focal depth
• Factors deteriorating focal spot
• Strehl Ratio
• Laser damage threshold and intensity, the density of the intensity
• Coming soon
• Pupil function engineering and adaptive optics
• The spatial resolution of confocal microscope
• Throughput depending on the size of the confocal pinhole
• Laser focal profiler
• Poynting Vector around the focal spot formed by a high-NA lens