Facilities and Equipment
MONSTR
The Multidimensional Optical Nonlinear Spectrometer (MONSTR) is a revolutionary tool for optical multidimensional Fourier transform spectroscopy. With precision translation stages and active feedback electronics, this ultra-stable device enables data of one-, two-, and three-dimensional spectra.
- Two-dimensional nonlinear spectroscopy
- Coherent four-wave mixing
- Transient grating
- Photoluminescence decay
Applications
- Heterodyne Detection
- Stacked and Nested Interferometers
- Active phase stabilization
Technical Details
Bomem DA3
The ABB-Bomem DA3 Fourier Transform InfraRed (FTIR) spectrophotometer provides ultrahigh resolution spectra, quick acquisition times and ample options for expandability. In addition, this system is highly durable and has been upgraded to work with modern computing and software.Original Manufacturer: ABB-Bomem
- Absorption and Photoluminescence Spectroscopy
Applications
- Large Spectral Region: 4 - 25,000 cm-1
- Ultrahigh Spectral Resolution: ~0.0026 cm-1 (with 2.5m scanning tube)
Technical Details
Laser Systems
Our first-rate laser system consists of a Verdi-pumped Mira 900 modelocked Ti:Sapphire master oscillator and a synchronously-pumped Mira OPO. This gives us access to wavelengths from 525-3000 nm with pulses ~120 fs.
The Mira creates ultrashort pulses using a nonlinear technique called Kerr Lens Modelocking (KLM). After tuning to the proper wavelength, these pulses are used to excite and investigate vibration dynamics in condensed matter systems
The use of an Optical Parametric Oscillator yields non-critically phase matched signal and idler beams at wavelengths ranging from 525-3000 nm upon pumping with the Ti:Sapphire oscillator. This wide range of wavelengths allows us to study anything from semiconductors, MQW and quantum dot structures, to thermoelectric materials.
- 2D Nonlinear Spectroscopy
- Coherent four-wave mixing
Applications
- Pulse Repetition Rate = 76 MHz
- Pulse Duration ~ 120 fs (200 fs with OPO)
