KTA Crystal
KTA (Potassium Titanyle Arsenate, KTiOAsO4 ) yog nonlinear optical crystal zoo ib yam li KTP uas atom P hloov los ntawm As. Nws muaj cov khoom zoo uas tsis yog-txoj hauv kev kho qhov muag thiab cov khoom siv hluav taws xob, piv txwv li txo kev nqus ntawm cov khoom ntim ntawm 2.0-5.0 µm, qhov dav ntawm lub kaum ntse ntse thiab qhov kub thiab txias, qhov tsis tshua muaj qhov tsis xws luag.
Piv nrog KTP, cov txiaj ntsig tseem ceeb ntawm KTA suav nrog: siab dua thib ob kev txiav txim siab nonlinear coefficient, ntev IR cut-off wavelength, thiab qhov nqus tsawg dua ntawm 3.5 µm. KTA tseem muaj qis dua ionic conductivity dua li ntawm KTP, uas ua rau muaj kev teeb tsa ntau dua laser ua rau kev puas tsuaj.
KTA nrov heev siv rau Optical Parametric Oscillation (OPO) daim ntawv thov uas muab lub zog hloov dua siab tshiab kev ua haujlwm (siab dua 50%) ntawm cov teeb tsa hluav taws xob laser tig tau hauv cov khoom siv lev.
Tiv tauj peb rau cov tshuaj zoo tshaj rau koj daim ntawv thov KTA muaju.
Kev Txawj Ntse WISOPTIC - KTA
• Muaj homogeneity siab, zoo heev sab hauv
• Sab saum toj zoo ntawm ntug polishing
• Cov block loj rau ntau qhov loj me (piv txwv li 10x10x30mm3, 5x5x35mm3)
• Cov kab hluav taws xob loj uas tsis muaj qhov hloov pauv, siab hloov ua haujlwm siab
• Muaj qhov pom tseeb ntau, qhov kub thiab txias txuam qhov dav
• AR txheej txheej rau yoj ntau txij li lub teeb pom kev mus txog 3300 nm
• Cov nqi sib tw heev, xa khoom ceev
WISOPTIC Cov Lus Qhia Tshwj Xeeb Cov Lus Qhia* - KTA
| Qhov Kev Zam Txim Siab | ± 0.1 hli |
| Txiav Lub Ruaj Khov | <± 0.25 ° |
| Lub Hauv Paus | <λ / 8 @ 632,8 nm |
| Deg Zoo | <10/5 [S / D] |
| Parallelism | <20 ” |
| Kev Txiav Txim | ≤ 5 ' |
| Tshaj | ≤ 0.2 hli @ 45 ° |
| Kis Tau Hloov Wavefront Kev Ntxeev Siab | <λ / 8 @ 632,8 nm |
| Ntshiab Aperture | > 90% hauv nruab nrab cheeb tsam |
| Kev Txheej Txheem | AR @ 1064nm (R <0.2%) & 1533nm (R <0.5%) & 3475nm (R <9%) lossis raws li qhov kev thov |
| Laser ua kev ceeb toom txog kev puas tsuaj | 500 MW / cm2 rau 1064nm, 10ns, 10Hz (AR-coated) |
| * Cov khoom lag luam nrog cov tshwj xeeb xav tau thaum thov. | |
Cov Tseem Ceeb Ntxiv - KTA
• High tsis-hloov cov coefficient, siab electro-optical coefficient
• Dav lees txais lub kaum ntse ntse, me me ntawm phab ntsa-tshem tawm
• Muaj qhov pom tseeb ntau, qhov kub thiab txias txuam qhov dav
• Me me dielectric tas mus li, qis ionic conductivity
• Kev nqus qis hauv 3-4 µm spectrum ntau dua li cov KTP
• Lub laser ua kom puas tsuaj ntau
Cov Ntawv Thov Ua Ntej - KTA
• OPO rau nruab nrab IR tiam - txog 4 µm
• Zaus thiab Qhov Ntau Zaus Ua Ntej nyob hauv nruab nrab IR ntau
• Electro-optical tes taws los piav thiab Q-hloov
• Zaus ob npaug (SHG @ 1083nm-3789nm).
Lub Cev Khoom Siv - KTA
| Siv cov mis tshuaj | KTiOAsO4 |
| Crystal qauv | Orthorhombic |
| Taw tes pab pawg | hli2 |
| Chaw pab pawg | Pna21 |
| Lattice constants | a= 13.103 Å, b= 6.558 Å, c= 10.746 Å |
| Qhov ceev | 3.454 g / cm3 |
| Melting taw tes | 1130 ° C |
| Curie kub | 881 ° C |
| Mohs hardness | 5 |
| Thermal conductivity | k1= 1.8 W / (m · K), k2= 1.9 W / (m · K), k3= 2.1 W / (m · K) |
| Hygroscopicity | tsis-hygroscopic |
Cov khoom kho qhov muag- KTA
| Hloov pauv cheeb tsam (ntawm “0” transmittance level) |
350-5300 nm | ||
| Indices kev nthuav qhia (@ 632.8 nm) | nx | ny | nz |
| 1.8083 | 1.8142 | 1.9048 | |
| Cov kab co raws tsis haum (@ 532 nm) |
= 0.005 / cm | ||
|
NLO coefficients (@ 1064 nm) |
d15 15= 2.3 pm / V, d24= 3.64 pm / V, d31= 2.5 pm / V, d32. 32= 4.2 pm / V, d33= 16.2 pm / V |
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Electro-optic coefficients |
r13. 13 |
r23 |
r33 |
| 11.5 ± 1.2 tsaus ntuj / V | 15.4 ± 1.5 teev tsaus ntuj / V | 37.5 ± 3.8 teev tsaus ntuj / V | |
