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Labs

We have two laser labs equipped for nonlinear surface-selective spectroscopy. 

Lab 614

This set-up is based on a unique custom-built amplified femtosecond Ti:Sapphire laser system by Coherent, Inc.

Femtosecond oscillator: MICRA (pumped by Coherent Verdi 5W CW laser, 532 nm).

Amplifier pump laser: Evolution-HE, 90W @ 527 nm, 3-10 kHz.

Ti:S amplifier: Legend Elite DUO-HP, average output power: 14 W (800 nm) at 3-10 kHz repetition rate (tunable), 40 fs pulse width (~400 cm-1 spectral width).

Optical parametric amplifier: TOPAS-800-fs + NDFG, mid-IR output tunable 3-20 mm.

 

Spectrometer: Princeton Instruments ARC-SP-2558 500 mm monochromator.

Detection: Princeton Instruments SPEC-10 LN2 cooled CCD (512x2054 pixles).

Lab 616

Here we have a versatile set-up for performing both vibrational and electronic surface-selective spectroscopy.

Oscillator: KM Labs (pumped by SpectraPhysics Millenia 5W CW laser, 532 nm).

Amplifier pump laser: Evolution-30, up to 30W @ 527 nm, 1 kHz.

Ti:S amplifier: average output power: 4 W (800 nm) at 1 kHz repetition rate, 40 fs pulse width (~400 cm-1 spectral width).

The amplified output is split 30-70 to pump 2 Optical parametric amplifiers (OPAs):

70% of the amplified output pumps an short -pulse (femtosecond) IR-OPA: : TOPAS-800-fs + NDFG, mid-IR output tunable 3-20 mm.

30% of the amplified output goes through a cross-chirp SHG to generate narrow-band (picosecond) 400 nm pulses of tunable spectral width (2-10 cm-1), which are used to pump vis-OPA: TOPAS-400-ps, output tunable from 450 - 750 nm (signal) and 900 - 2000 nm (idler).

 

Spectrometer 1: Princeton Instruments ARC-SP-2558 500 mm monochromator.

Detection: Princeton Instruments SPEC-10 LN2 cooled CCD (512x2054 pixles).

Spectrometer 2: Roper Scientific  Spectra-Pro-300i 300 mm monochromator.

Detection: Princeton Instruments SPEC-10 LN2 cooled CCD (100x1340 pixels)..

 

Lab 615 - the wet lab is across the hall from the laser labs

 

 

 

Laser Labs Climate Control  

Our laser labs area equipped with an autonomous state-of-the-art climate control system. The temperature and humidity are constantly monitored at several positions in the labs as well as in the key points of the air-handling system. History charts of the temperature and humidity fluctuations can be plotted over 1 day to 1/2 year period (requires Internet Explorer). 

Lab 614 Climate Control

 

Lab 616 Climate Control