KTA Crystal
KTA (Potassium Titanyle Arsenate, KTiOAsO)4 ) bụ kristal nke na - enweghị atụ yiri nke KTP nke atom P dochiri anya dịka. Ọ nwere ezigbo ngwa na-abụghị ahịrị ngwa anya na ngwa elektroki, dịka ọmụmaatụ belata mmụba na bandwidth 2.0-5.0 µm, ogwe sara mbara na bandwidth dị ala, obere ihe ọkụ elekere.
N'iji ya atụnyere KTP, ebumnuche ndị dị mkpa nke KTA gụnyere: ọnụọgụ abụọ nke na-enweghị ọnụọgụ na-enweghị nkwekọrịta, ogologo ngbanwe IR ogologo, na ntinye obere na 3.5 atm. KTA nwekwara arụmọrụ ionic dị ala karịa nke KTP, nke na-ebute ụzọ mbata mebiri emebi nke laser dị elu.
A na-eji KTA eme ihe nke ọma maka ngwa Optical Parametric Oscillation (OPO) nke na-enye arụmọrụ mgbanwe dị elu (karịa 50%) nke radiese laser na-agbanwe agbanwe na lasers siri ike.
Kpọtụrụ anyị maka usoro kachasị mma maka ngwa KTA kristal gị.
Uru WISOPTIC - KTA
• homogeneity dị elu, ịdị mma nke ime
• elu mma nke elu polishing
• Nnukwu ngọngọ maka nha dịgasị iche (dịka 10x10x30mm3, 5x5x35mm3)
• Nnukwu ọnụọgụ anaghị arụ ọrụ, arụmọrụ mgbanwe dị elu
• oke nghọta zuru oke, obosara dakọtara obosara
• Ihe mkpuchi nke AR maka oke nha site na ìhè anya ruo 3300 nm
• ọnụahịa asọmpi dị ukwuu, nnyefe ngwa ngwa
Nkọwapụta WISOPTIC* - KTA
| Nnukwu Ndidi | 0.1 mm |
| Mgbuji ndidi | <± 0.25 ° |
| Ewepụghị akpụ | <λ / 8 @ 632.8 nm |
| Ogo elu | <10/5 [S / D] |
| Yiri | <20 ” |
| Ikele | ≤ 5 ' |
| Chamfer | ≤ 0.2mm @ 45 ° |
| Ngbanwe Wavefront | <λ / 8 @ 632.8 nm |
| Kọwaa Aperture | > 90% mpaghara etiti |
| Mkpuchi | AR @ 1064nm (R <0.2%) & 1533nm (R <0,5%) & 3475nm (R <9%) ma ọ bụ n'arịrịọ |
| Laszọ Ọgwụ Laser | 500 MW / cm2 maka 1064nm, 10ns, 10Hz (mkpuchi nke AR) |
| * Ngwaahịa nwere ihe achọrọ pụrụ iche maka ịrịọ arịrịọ. | |
Isi atụmatụ - KTA
• ọnụọgụ dị elu anaghị arụ ọrụ, ọnụọgụ elektrik na-arụ ọrụ dị elu
• n'akuku nabata obosara, obere mgbidi na - apụ
• oke nghọta zuru oke, obosara dakọtara obosara
• obere dielectric na-adịkarị ala, na-arụ ọrụ mgbakwunye dị ala
• Mbelata nke obere na ụdị 3-4m dị iche iche karịa nke KTP
• reszọ mbata laser dị elu
Ngwa ndị mbụ - KTA
• OPO maka ọgbọ IR - ruo 4 µm
• Ọgụ na Mgbapụta Ọdịiche nke etiti na etiti IR
• Mgbanwe electro-optical na Q-ịgbanwee
• Ugboro ugboro abụọ (SHG @ 1083nm-3789nm).
Ngwongwo Nkịtị - KTA
| Usoro kemịkal | KTiOAsO4 |
| Ihe owuwu kristal | Orthorhombic |
| Otu akara | mm2 |
| Ndị otu oghere | Pna21 |
| Lattice constants | a= 13,103 Å, b= 6.558 Å, c= 10.746 Å |
| Njupụta | 3,454 g / cm3 |
| Ebe ngbanwe | 1130 Celsius C |
| Akpado okpomoku | 881 Celsius C |
| Nessdị siri ike nke Mohs | 5 |
| Traktị na-ekpo ọkụ | k1= 1.8 W / (m · K), k2= 1.9 W / (m · K), k3= 2.1 W / (m · K) |
| Hygroscopicity | abụghị hygroscopic |
Njirimara Ngwa-KTA
| Mpaghara nghọta (na ọkwa “0” transpeance ọkwa) |
350-5300 nm | ||
| Ntughari uche (@ 632.8 nm) | nx | ny | nz |
| 1.8083 | 1.8142 | 1.9048 | |
| Coefficients Linear oriri (@ 532 nm) |
α = 0.005 / cm | ||
|
NLO coefficients (@ 1064 nm) |
d15= 2.3 pm / V, d24= 3.64 pm / V, d31= 2,5 pm / V, d32= 4.2 pm / V, d33= 16,2 pm / V |
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Ihe coefficients electro-optic |
r13 |
r23 |
r33 |
| 11.5 ± 1.2 pm / V | 15,4 ± 1.5 pm / V | 37.5 ± 3.8 pm / V | |
