fsTA - femtosecond Transient Absorption

Instrument Specification

This is a home-built system that utilizes an amplified femtosecond laser system (Spectra Physics – Spitfire Ace). The system has an instrument response time of ~0.3 ps, and a delay line capable of measuring up to 2ns. Standard excitation wavelengths: 400nm, 800 nm, 500-780 nm; other wavelengths are optional, pending consultation with the laboratory staff. Detection wavelengths by continuum white light generation using Sapphire or Calcium Fluoride: 400 nm – 950 nm with a gap at 800nm. The system is flexible and can accept many types of samples and sample holders. Magnetic stirring is available. Temperature-controlled experiments between 5oC and 100oC are possible.