Coherent Chameleon-OPO Tunable Ultrafast Laser
Staff Contact: Hari Jayakumar
This laser is the cornerstone of the Nano-Optics lab ultrafast spectroscopy user program and is a recent upgrade from the original laser system (Coherent MiraTi:SAF + OPG) acquired as part of the original Foundry equipment in 2006. The new laser has more power and broader tuning range, adding near UV and mid IR ultrafast capabilities. It is more reliable and user-friendly due to full computer control with remote vendor alignment, combined with integration of pump and primary laser in one sealed unit. It supports user projects in many experimental modes including:
- Two-photon 3D photoluminescence lifetime mapping for photovoltaic characterization.
- One or two photon TRPL – Time Resolved Photoluminesence Lifetime mapping and spectroscopy, for characterizing nanoscale structures including up-converting nanoparticles and single-photon emitters (antibunching)
- TDTR C Time-Domain Thermo-Reflectance, for characterizing nanoscale thermal properties.
- TPPL – Two-Photon Photo-Luminescence, for characterizing plasmonic devices.
Fianium White Light Super Continuum Laser
Staff Contact: Hari Jayakumar
The Fianium white light super continuum laser provides a tunable laser source for a wide variety of materials spectroscopy and microscopy. Wavelengths are continuously tunable from 450-800nm and adjustable pulse repetition rates range from 1MHz – 40MHz.
It supports user projects in many experimental modes including:
* Photoluminescence Excitation (PLE) spectroscopy measurements
* Time-resolved photoluminescence (TRPL) microscopy
* High resolution photoluminescence (PL) mapping
* Exciton diffusion experiments
Attocube Attodry magnetooptical microscope
Staff Contact: Archana Raja
Samples can be measured at temperatures from 1.67K – 350K under +/-9 magnetic field (Voigt and Faraday) in a confocal geometry with 0.7NA objective and 0.5 micron spot size, with electrical connections. The excitation sources include femtosecond-pulsed laser with second-harmonic generation unit that can excite samples anywhere from 350 to 1300 nm, an ultranarrow (50 kHz), tunable (690 to 1050 nm) continuous wave unit, an several fixed lasers (532 nm/635 nm) as well as white light excitation. The detection capabilities include two spectrometers, one designed for low-frequency Raman and one connected to a Streak Camera which can measure down to 2 ps resolution and several photodiodes.
Montana instruments Cryo Microscope
Staff Contact: Archana Raja
Samples can be measured at temperatures from 4K – 350K, with electrical and RF connections. A number of of pulsed and CW sources and CCD/CMOS/APD detection schemes can be coupled into this system.
UV Photoluminescence Spectrometer
Staff Contact: Shaul Aloni
Tunable Near-infrared Laser (745nm-795nm)
Staff Contact: Hari Jayakumar
