Microscope Slide Peak Power Sensor

• Company: Thorlabs Inc.
• Type: Other
• Applications: Life Science
• Laser Wavelength Range: 780-1300 nm
• SHG Wavelength Range: 390-650 nm
• Max. Peak Power Density: 10 TW/cm^2
• Laser Avg. Power Range: 0.5-350 mW
• SHG Optical Power: Working Range: 10 nW–5 mW
• Resolution: 1 nW

Thorlabs' Microscope Slide Peak Power Sensor is designed to measure the relative peak power of two-photon lasers. It shares the same physical dimensions as a microscope slide, enabling measurements of the relative peak power at the focus of a microscope and making the sensor ideal for laser pulse optimization for multiphoton microscopy. This sensor can be used to optimize group delay dispersion of femtosecond lasers at the focus of a two-photon microscope, ensure laser conditions are consistent between experiments, or quickly evaluate the quality of femtosecond laser pulses.

The NS170C sensor utilizes a second-order nonlinear β-BBO crystal to convert incident ultrafast near-infrared (NIR) pulses into their visible second harmonic. Because the efficiency of second harmonic generation is proportional to the peak power density of the NIR femtosecond pulses, the magnitude of the detected second harmonic light provides a relative measurement of the peak power of the laser.