BBO crystal
BBO sabon mitar ultraviole ne mai ninka kristal. Yana da kristal mara kyau na uniaxial, tare da ma'anar refractive na yau da kullun (babu) ya fi girma fiye da ma'anar refractive (ne).Duk nau'in I da nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i)) ta hanyar daidaitawar kusurwa.
BBO shine ingantaccen NLO crystal don ƙarni na biyu, na uku da na huɗu na jituwa na Nd: YAG lasers, kuma mafi kyawun kristal NLO don ƙarni na biyar masu jituwa a 213nm.Canjin canjin fiye da 70% don SHG, 60% don THG da 50% don 4HG, da fitarwa na 200 mW a 213 nm (5HG), bi da bi.
BBO kuma ingantaccen crystal ne don intracavity SHG na babban iko Nd: YAG Laser.Don intracavity SHG na acousto-optic Q-switched Nd:YAG Laser, fiye da 15 W matsakaicin ƙarfi a 532 nm an ƙirƙira ta AR-mai rufi BBO crystal.Lokacin da aka fitar da shi ta hanyar 600mW SHG fitarwa na yanayin kulle Nd:YLF Laser, 66 mW fitarwa a 263 nm an samar dashi daga BBO mai kusurwa-Browster-yanke a cikin ingantaccen rami na waje.
Hakanan ana iya amfani da BBO don aikace-aikacen EO.BBO Pockels Kwayoyin ko EO Q-Switches ana amfani da su don canza yanayin polarization na hasken da ke wucewa ta cikinsa lokacin da aka yi amfani da wutar lantarki zuwa electrodes na crystals na electro-optic kamar BBO.Beta-Barium Borate (β-BaB2O4, BBO) tare da ƙwararrun ma'auni mai faɗin gaskiya da jeri masu daidaitawa lokaci, babban ƙima mara kyau, babban lalacewa kofa da kyakkyawan yanayin yanayin gani da kaddarorin lantarki-na gani suna ba da dama mai ban sha'awa don aikace-aikacen gani da yawa marasa kan layi da aikace-aikacen lantarki-optic.
Siffofin BBO Crystals:
• Faɗin lokaci mai daidaitawa daga 409.6 nm zuwa 3500 nm;
• Yankin watsawa mai faɗi daga 190 nm zuwa 3500 nm;
• Babban tasiri mai tasiri na ƙarni na biyu (SHG) kusan sau 6 mafi girma fiye da na KDP crystal;
• Babban iyakar lalacewa;
• Babban haɗin kai tare da δn ≈10-6 / cm;
• Faɗin zafin jiki-bandwidth na kusan 55 ℃.
Muhimmiyar sanarwa:
BBO yana da ƙarancin sauƙi ga danshi.An shawarci masu amfani da su samar da yanayin bushewa don aikace-aikace da adana BBO.
BBO yana da taushi da ɗanɗano don haka yana buƙatar taka tsantsan don kare abubuwan gogewarta.
Lokacin da gyaran kusurwa ya zama dole, da fatan za a tuna cewa kusurwar karɓar BBO ƙananan ce.
| Haƙurin girma | (W±0.1mm) x (H±0.1mm) x(L+0.5/-0.1mm) (L≥2.5mm)(W±0.1mm) x(H±0.1mm) x(L+0.1/-0.1) mm) (L<2.5mm) |
| Share fage | tsakiyar 90% na diamitaBabu hanyoyin watsawa ko cibiyoyi na bayyane lokacin da Laser kore 50mW ya duba |
| Lalata | kasa da L/8 @ 633nm |
| Karya gaban igiyar ruwa | kasa da L/8 @ 633nm |
| Chamfer | ≤0.2mm x 45° |
| Chip | ≤0.1mm |
| Scratch/Dig | fiye da 10/5 zuwa MIL-PRF-13830B |
| Daidaituwa | ≤20 seconds |
| Daidaitawa | ≤5 mintuna |
| Haƙurin kusurwa | ≤0.25 |
| Ƙofar lalacewa[GW/cm2] | > 1 don 1064nm, TEM00, 10ns, 10HZ (gyara kawai)> 0.5 don 1064nm, TEM00, 10ns, 10HZ (AR-mai rufi)> 0.3 don 532nm, TEM00, 10ns, 10HZ (AR-coated) |
| Abubuwan asali | |
| Tsarin Crystal | Trigonal,Rukunin Sararin Samaniya R3c |
| Lattice Parameter | a=b=12.532Å,c=12.717Å,Z=6 |
| Matsayin narkewa | Kimanin 1095 ℃ |
| Mohs Hardness | 4 |
| Yawan yawa | 3.85 g/cm 3 |
| Ƙididdigar Faɗaɗɗen Ƙarfafawar thermal | α11=4 x 10-6/K;α33=36x 10-6/K |
| Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararru | Ƙimar: 1.2W/m/K;//c: 1.6W/m/K |
| Matsakaicin Rage | 190-3500nm |
| Matsayin SHG Matchable Range | 409.6-3500nm (Nau'in I) 525-3500nm (Nau'in II) |
| Ƙididdigar Thermal-Optic Coefficients (/ ℃) | dno/dT=-16.6x 10-6/℃ dne/dT=-9.3x 10-6/℃ |
| Absorption Coefficients | <0.1%/cm (a 1064nm) <1%/cm (a 532nm) |
| Karɓar kusurwa | 0.8mrad · cm (θ, Nau'in I, 1064 SHG) 1.27mrad · cm (θ, Nau'in II, 1064 SHG) |
| Karɓar Zazzabi | 55 ℃ · cm |
| Karɓar Spectral | 1.1 nm · cm |
| Wurin tafiya | 2.7° (Nau'in I 1064 SHG) 3.2° (Nau'in II 1064 SHG) |
| NLO Coefficients | deff(I)=d31sinθ+(d11cos3Φ- d22 sin3Φ) cosθq deff (II) = (d11 sin3Φ + d22 cos3Φ) cos2θ |
| Matsalolin NLO da ba su ɓace ba | d11 = 5.8 x d36(KDP) d31 = 0.05 x d11 d22 <0.05 x d11 |
| Sellmeier Equations (λ in μm) | no2=2.7359+0.01878/(λ2-0.01822)-0.01354λ2 ne2=2.3753+0.01224/(λ2-0.01667)-0.01516λ2 |
| Ƙididdigar Electro-optic | γ22 = 2.7pm/V |
| Rabin igiyar wutar lantarki | 7 KV (a 1064 nm, 3x3x20mm3) |
