Neodymium-doped yttrium lithium fluoride
Neodymium-doped yttrium lithium fluoride (Nd:YLF) is a lasing medium for arc lamp-pumped and diode-pumped solid-state lasers. The YLF crystal (LiYF4) is naturally birefringent, and commonly used laser transitions occur at 1047 nm and 1053 nm.[1]
It is used in Q-switched systems in part due to its relatively long fluorescence lifetime. As with Nd:YAG lasers, harmonic generation is frequently employed with Q-switched Nd:YLF to produce shorter wavelengths. A common application of frequency-doubled Nd:YLF pulses is to pump ultrafast Ti:Sapphire chirped-pulse amplifiers.
Neodymium-doped YLF can provide higher pulse energies than Nd:YAG for repetition rates of a few kHz or less. Compared to Nd:YAG, the Nd:YLF crystal is very brittle and fractures easily. It is also slightly water-soluble — a YLF laser rod may very slowly dissolve in cooling water which surrounds it.[1]
Physical and chemical properties
Materials: Nd:LiYF4
Modulus of Elasticity: 85 GPa
Crystal Structure: Tetragonal
Cell Parameters: a=5.16 Å , c=10.85 Å
Melting Point: 819 °C
Mohs Hardness: 4~5[2]
Density: 3.99 g/cm^3
Thermal Conductivity: 0.063 W/cm/K
Specific Heat: 0.79 J/g/K
See also
- Neodymium doped yttrium orthovanadate (Nd:YVO4)
- Neodymium doped yttrium aluminum garnet (Nd:YAG) laser
References
- ^ Pollak, T.; Wing, W.; Grasso, R.; Chicklis, E.; Jenssen, H. (1982). "CW laser operation of Nd:YLF". IEEE Journal of Quantum Electronics. 18 (2). Institute of Electrical and Electronics Engineers (IEEE): 159–163. Bibcode:1982IJQE...18..159P. doi:10.1109/jqe.1982.1071512. ISSN 0018-9197.
- ^ Nd:YLF Crystal
- v
- t
- e
Neodymium compounds
- Nd2C
- NdF2
- NdCl2
- NdBr2
- NdH2
- NdI2
- NdS
- NdAl3(BO3)4
- NdAsO4
- Nd(CH3COO)3
- Nd(acac)3
- NdBi
- NdBr3
- Nd4C3
- Nd2(CO3)3
- Nd2(C2O4)3
- NdCl3
- Nd(ClO4)3
- NdF3
- NdH3
- Nd(OH)3
- NdI3
- Nd(IO3)3
- Nd2(MoO4)3
- NdNiO3
- NdN
- Nd(NO3)3
- Nd2O3
- Nd(ReO4)3
- NdPO4
- NdP
- Nd2S3
- Nd2(SO4)3
- NdTaO4
- Nd2(WO4)3
- NdVO4
- Nd(C5H5)3
- NdF4
| |
|---|---|
| Distinct subtypes | |
| Yttrium aluminium garnet |
|
| Glass |
|
| Other gain media |
|
| Structures | |
| Specific lasers |
|
 | This optics-related article is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e
