Caesium lithium borate
CsLiB6O10 (Caesium lithium borate, CLBO) is a non-linear crystal for UV applications and generates the 4th and 5th harmonics of the Nd:YAG fundamental laser wavelength (1064 nm).
Properties
- Transparency range : 180 nm - 2750 nm
- Symmetry : tetragonal, point group 4m2
- Cell parameters : a = 10.494, c = 8.939 Å
- Mohs hardness : 4
- Refractive indexes:
- at 1064 nm : no= 1.4852; ne = 1.4353
- at 532 nm : no = 1.4985; ne = 1.4462
- Sellmeier equations (Range:of 400 - 2400 nm ; Ref: Proc. SPIE , 4453, 106 (2001))
- Non-linear coefficient at 1064 nm : d36 = 0.86 pm/V
- Optical damage threshold : 25 GW/cm2 (1064 nm; 1.1 ns pulses)
- Walk off:
- at 532 nm : 1.83°
- at 488 nm : 0.98°
- Cut off SHG : 471 nm
- Chemical properties : slightly hygroscopic
Nonlinear Optical Properties of CLBO
Harmonics wavelength
(nm)
| Phase-matching angle
(°)
| Calculated deff
(pm/V)
| Walk-off angle
(°)
| Angular bandwidth
(mrad·cm)
| Spectral bandwidth
(nm·cm)
| Temperature bandwidth
(°C·cm)
|
| 266 | 61.6 | 0.84 | 1.83 | 0.49 | 0.13 | 8.3
|
| 213 | 67.3 | 0.87 | 1.69 | 0.42 | 0.16 | 5.1
|
Ref: Y. Mori, I. Kuroda, S. Nakajima, T. Sasaki, and S. Nakai, Appl. Phys. Lett. 67, 1818 (1995).
Y. Mori, Y. K. Yap, M. Inagaki, S. Nakajima, A. Taguchi, W. L. Zhou, and T. Sasaki, in Advanced Solid-State Lasers, Vol. 1 of Topics in Optics and Photonics (OSA, Washington, D.C., 1996), p. 341.
Applications
- generation highest harmonics (SHG, THG, 4HG, 5HG) of laser radiation Nd:YAG
- generation second, third lasers harmonics on the alexandrite, Ti:sapphire laser
Further reading
- D. Gerstenberger, T. Trautmann, and M. Bowers, "Noncritically phase-matched second-harmonic generation in cesium lithium borate ," Opt. Lett. 28, 1242-1244 (2003)
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