Lithium triborate
__Li+ __ B3+ __ O2− | |
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Properties | |
Chemical formula | LiB3O5 |
Molar mass | 119.37 g·mol−1 |
Appearance | Colorless crystalline solid |
Density | 2.747 g/cm3 |
Melting point | 834 °C (1,533 °F; 1,107 K) |
Refractive index (nD) | 1.5656 |
Structure | |
Molecular shape | Orthorhombic |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references |
Lithium triborate (LiB3O5) or LBO is a non-linear optical crystal. It has a wide transparency range, moderately high nonlinear coupling, high damage threshold and desirable chemical and mechanical properties. This crystal is often used for second harmonic generation (SHG, also known as frequency doubling), for example of Nd:YAG lasers (1064 nm → 532 nm). LBO can be both critically and non-critically phase-matched. In the latter case the crystal has to be heated or cooled depending on the wavelength.
Lithium triborate was discovered and developed by Chen Chuangtian and others of the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences. It has been patented.[1]
Chemical properties
- Point group: mm2
- Lattice parameters: a=8.4473 Å, b=7.3788 Å, c=5.1395 Å
- Mohs hardness: 6
- Transmission range: 0.16 – 2.6 μm
- Damage threshold: 25 J/cm2 (1064 nm, 10 ns pulses)
- Thermal expansion coefficients: x: 10.8×10−5/K, y: −8.8×10−5/K, z: 3.4×10−5/K
- Specific heat: 1060 J/kg·K
- Melting point: 834 °C
Applications of lithium triborate (LBO) crystal
Lithium triborate (LBO) crystals are applicable in various nonlinear optical applications:[2]
- Frequency doubling (SHG) and frequency tripling of high peak power pulsed Nd doped, Ti:Sapphire lasers and Dye lasers
- NCPM (non-critical phase matching for frequency conversion of CW and quasi CW radiation
- OPO (Optical parametric oscillator) of both Type 1 and Type 2 phase-matching
References
External links
- LBO Crystal (Lithium Triborate) at www.redoptronics.com
- v
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- FLiBe
- LiFePO4
- FLiNaK
- LiGaH4
- Li2GeF6
- Li2GeO3
- LiGe2(PO4)3
- LiH
- LiH2AsO4
- Li2HAsO4
- LiHCO3
- Li3H(CO3)2
- LiH2PO3
- LiH2PO4
- LiHSO3
- LiHSO4
- LiHe
- LiI
- LiIO
- LiIO2
- LiIO3
- LiIO4
- Li2IrO3
- Li7La3Zr2O12
- LiMn2O4
- Li2MoO4
- Li0.9Mo6O17
- LiN3
- Li3N
- LiNH2
- Li2NH
- LiNO2
- LiNO3
- LiNO3·H2O
- Li2N2O2
- LiNa
- Li2NaPO3
- LiNaNO2
- LiNbO3
- Li2NbO3
- LiO−
- LiO2
- LiO3
- Li2O
- Li2O2
- LiOH
- Li3P
- LiPF6
- Li3PO4
- Li2HPO3
- Li2HPO4
- Li3PO3
- Li3PO4
- Li2Po
- Li2PtO3
- Li2RuO3
- Li2S
- LiSCN
- LiSH
- LiSO3F
- Li2SO3
- Li2SO4
- Li[SbF6]
- Li2Se
- Li2SeO3
- Li2SeO4
- LiSi
- Li2SiF6
- Li4SiO4
- Li2SiO3
- Li2Si2O5
- LiTaO3
- Li2Te
- LiTe3
- Li2TeO3
- Li2TeO4
- Li2TiO3
- Li4Ti5O12
- LiTi2(PO4)3
- LiVO3·2H2O
- Li3V2(PO4)3
- Li2WO4
- LiYF4
- LiZr2(PO4)3
- Li2ZrO3
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- LiN(C3H7)2
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- C6H13Li
- C4H9Li
- CH3CHLiCH2CH3
- (CH3)3CLi
- C12H28BLi
- CH3Li
- Li+C10H8−
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- C6H5Li
- LiC2CH3
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- LiEt3BH
- LiOC(CH3)3
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11H
23COO
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- Emeleusite
- Eucryptite LiAlSiO4
- Faizievite
- Hectorite
- Hsianghualite
- Jadarite LiNaSiB3O7OH
- Keatite Li(AlSi2O6)
- Kunzite
- Lavinskyite
- Lepidolite
- Lithiophilite LiMnPO4
- Lithiophosphate Li3PO4
- Manandonite
- Manganoneptunite
- Nambulite
- Neptunite
- Olympite
- Petalite LiAlSi4010
- Pezzottaite Cs(Be2Li)Al2Si6O18
- Rossmanite
- Saliotite
- Sogdianite
- Spodumene LiAl(SiO3)2
- Sugilite
- Tiptopite
- Tourmaline
- Triphylite LiFePO4
- Zabuyelite Li2CO3
- Zektzerite
- Zinnwaldite
- LixBey
- HLiHe+
- LiFHeO
- LiHe2
- (HeO)(LiF)2
- La2/3-xLi3xTiO3He
- Aluminium–lithium alloys
- Heteroatom-promoted lateral lithiation
- LB buffer
- Lithium atom
- Lithium medication
- LiNixCoyAlzO2
- LiNixMnyCozO2
- Lithium soap
- Lithium Triangle
- Lucifer yellow
- Magnesium–lithium alloys
- NASICON
- Environmentally friendly red light flare