Sorry, this family of products is no longer available.
Our Coherent Anti-Stokes Raman Scattering Microspectrometer solution is designed to integrate with Ti:Sapphire femtosecond oscillators to perform CARS Microspectroscopy related experiments. This complete solution from Newport includes detailed information on set up, alignment and components used to help researchers save valuable time and resources.
In this solution a Phonic crystal fiber is used to generate broadband Supercontinuum that can be used as a Stokes pulse. Shown is a block diagram of the experimental setup with the following components: FI – Faraday isolator, 1/2 WP – half wave plate, BS – beam splitter, RELP – razor edge long pass filter, LP – long pass filter, SCG-800 – supercontinuum generation kit, FO – focusing objective, CO – collimating objective, SP – combination of short pass filters, FM – flip mount, PMT – photomultiplier. Our CARS Microspectrometer application note provides detailed information on set up, alignment and components used in this experiment.
An energy diagram of the CARS process is shown. The CARS signal is resonantly enhanced when the difference between the pump ωρ and Stokes ωS frequencies matches a vibrational transition ΩΡ of the molecule.
The combination of spectrally narrow picosecond pulse as a pump ωρ and probe ωρ’ and a broadband femtosecond pulse as Stokes is the basis for broadband CARS.
Applications include:
Please see our CARS Microspectrometer application note for more information.
Ultra-High Velocity