1. Titanium: Sapphire laser
Presentation Photon Physics
Ruben van der Wel

2. Characteristics Tunable solid-state laser Al2O3  Ti2O3 (0,1m% Ti)
Absorption (pumping) wavelength nm
Emission (lasing) wavelength nm
CW pumped with argon ion laser
Pulsed pumped with Nd:YAG/Nd:YLF

3. Energy levels/transitions

4. Output power A = 10 mm2, g0 = 20 m-1, a = 0.5%,
Use the equations given in Silfvast
A = 10 mm2, g0 = 20 m-1, a = 0.5%,
σul = 3.4 · m2, one highly reflecting mirror
Isat = (1.3 – 2.3) · 109 W m-2
topt = 2 x 0.095
Itopt = (1.2 – 2.1) · 109 W m-2
Ptopt = 2 x (1.2 – 2.1) · 104 W = 24 – 42 kW

5. Applications
Laser assisted micro-injection of exogeneous substances into living cells[1]
Production of nanoholes[2]
Infrared spectroscopy of semiconductors
Laser radar
[1] Lei, M.,et al, Femtosecond laser-assisted microinjection into living neurons, Journal of Neuroscience Methods, Volume: 174, Issue: 2 (September 30, 2008), pp:
[2] N.N. Nedyalkov, T. Miyanishi, M. Obara, Enhanced near field mediated nanohole fabrication on silicon substrate by femtosecond laser pulse,
Applied Surface Science, Volume: 253, Issue: 15 (May 30, 2007), pp:

6. Recent experiment[3]
Accelerated bone repair after corticotomy with Ti:S laser
Accurate controlled removal of tissue
Less damage to surrounding tissue
Bone heals faster
[3] Leucht, P., et al. , Accelerated Bone Repair After Plasma Laser Corticotomies, Annals of Surgery, Volume: 246, Issue: 1 (July 1, 2007), pp:

7. Thank you!