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Name: | Lanthanum Gallium Silicate (LGS) | Chemical Formula: | La3Ga5SiO14 |
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Growth Method: | Czochralski | Hardness: | 6.6 Moh's |
Density: | 5.754 G/cm3 | Melt Point: | 1470℃ |
Thermal-expansion Coefficient: | α 11=5.10 α 33=3.61 | Acoustic Velocity, SAW: | 2400 ( M/sec ) |
Frequency Constant, BAW: | 1380 ( KHz/mm ) | Temperature Frequency Coefficient: | 1.6х10-5 |
High Light: | Saw Device LGS Crystal,5.754 g/cm3 La3Ga5SiO14 Crystals,5.754 g/cm3 La3Ga5SiO14 LGS Crystal |
Langasite - Lanthanum Gallium Silicate, is a piezoelectric crystal. Though langasite was initially developed as a laser crystal, it revealed a remarkable combination of piezoelectric qualities, which opened up new opportunities to use the LGS crystal in radio frequency devices. The main applications of langasite crystals now are SAW filters and SAW resonators.
Crystal Structure | regional system, group 33 a= 8.1783 c = 5.1014 |
Growth Method | Czochralski |
Hardness | 6.6 Moh's |
Density | 5.754 g/cm3 |
Melt Point | 1470 o C ( phase transition point: N/A) |
Thermal expansion (x10-6/ oC) | α 11: 5.10 α 33: 3.61 |
Acoustic velocity, SAW | 2400 ( m/sec ) |
Frequency constant, BAW | 1380 ( kHz/mm ) |
Piezoelectric coupling | K2 (%) BAW: 2.21 SAW: 0.3 |
Inclusions | N0 |
electro-optic Q-switch
SAW device
BAW device
Sensor
High power high repetition rate all-solid-state laser
High and low temperature change the laser
Contact Person: Zheng
Tel: +86 18255496761
Fax: 86-551-63840588
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