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The Photonics Research Laboratory at CRANN, Trinity College Dublin, is an established optical research center and a key technology platform for Ireland.
It combines unique femtosecond laser systems with different repetition rates and tunability from UV to mid-IR, a Raman Spectroscope, Scanning Near-field Optical Microscope and a Fluorescence Lifetime Imaging Microscope. At CRANN we are carrying out research related to nonlinear dynamics, nonlinear optics, ultrafast optics, near-field optics and surface Plasmon resonance.
For more information on the CRANN Photonics Laboratory and related projects please email Prof John Donegan, jdonegan AT tcd.ie.
CW 532 nm.
80MHz, <130 fs, 700 nm-980 nm.
Pumped 500 mW@ 832 nm, SHG: 70 mW @ 416 nm.
THG: 25 mW@ 277 nm.
80 MHz, <130 fs, 525 nm-750 nm.
80 MHz, <130 fs, 1 050 nm-1600 nm (Signal).
80 MHz, <130 fs, 1600 nm-2600 nm (Idler).
780 nm-820 nm, <130 fs.
500 mW@800 nm, <130 fs.
White light output.
SHG output, 400 nm, <130 fs.
Signal 480 nm-700 nm, <130 fs.
Idler 933 nm-2300 nm, <130 fs.
Signal 1200 nm-1600 nm, <130 fs
Idler 1600 nm-2400 nm, <130 fs.
2.55 µm to >10 µm.
800nm, Repetition Rates @1 kHz, Pulse Energy >1 mJ.
SNOM:
Scanning by sample
Scanning by probe
Scan range
100x100x10 µm
100x100x7 µm
Non-linearity, XY
0.1 % (typically)
<0.15 %
Noise level, Z
<0.2 nm (typically)
0.04 nm (typically)
Noise level, XY
<0.5 nm (typically)
0.2 nm (typically)
Quartz tuning fork base frequency
190 kHz
Optical fiber diameter
90 µm (for 480 nm-550 nm)
Aperture diameter
< 100 nm
Raman spectroscope:
Wavelength coverage: ~ 100 cm-1 to 9000 cm-1. Laser options: 488 nm Argon Iron Laser &, 532 nm, & 633 nm Helium-Neon Laser. Three grating options: 1200/mm, 2400/mm and 3000/mm. Spectral resolution: ~ 1 cm-1(depending on configuration).
AFM:
<0.04 nm (typically)
0.06 nm (typically)
0.1 nm (typically)
System Specifications: