I-BBO yikristale entsha ye-ultraviole ephindwe kabini. Yikristale engalunganga ye-uniaxial, enesalathiso esiqhelekileyo se-refractive (hayi) esikhulu kune-extraordinary refractive index (ne).Zombini uhlobo lwe-I kunye nohlobo lwe-II oluhambelanayo lwesigaba lunokufikelelwa ngokulungiswa kwe-engile.
I-BBO yikristale ye-NLO esebenzayo kwisizukulwana sesibini, sesithathu kunye nesine se-harmonic ye-Nd: i-lasers ye-YAG, kunye ne-crystal ye-NLO engcono kakhulu ye-harmonic isizukulwana kwi-213nm.Ukuguqulwa kobuchule obungaphezulu kwe-70% ye-SHG, i-60% ye-THG kunye ne-50% ye-4HG, kunye ne-200 mW imveliso kwi-213 nm (5HG) ifunyenwe, ngokulandelanayo.
I-BBO ikwayikristale esebenzayo ye-Intracavity SHG yamandla aphezulu Nd: YAG lasers.Kwi-intracavity SHG ye-acousto-optic Q-switched Nd: YAG laser, ngaphezu kwe-15 W ye-avareji yamandla kwi-532 nm yenziwe yi-AR-coated BBO crystal.Xa impontshwa yi-600 mW SHG isiphumo se-mode-tshix ye-Nd: YLF laser, i-66 mW ephuma kwi-263 nm yaveliswa kwi-BBO ye-Brewster-angle-cut-cut kwi-cavity yangaphandle eyongeziweyo ye-resonant.
I-BBO ingasetyenziselwa izicelo ze-EO. Iiseli ze-BBO Pockels okanye i-EO Q-Switches zisetyenziselwa ukutshintsha imeko ye-polarization yokukhanya okudlula kuyo xa i-voltage isetyenziswe kwii-electrodes ze-electro-optic crystals ezifana ne-BBO.I-Beta-Barium Borate (i-β-BaB2O4, i-BBO) eneempawu ezicacileyo ezibanzi kunye nezigaba ezihambelana nesigaba, i-coefficient enkulu engabonakaliyo, i-threshold yomonakalo ophezulu kunye ne-homogeneity egqwesileyo ye-homogeneity kunye ne-electro-optical properties zibonelela ngeendlela ezikhangayo kwiinkqubo ezahlukeneyo ze-optical kunye ne-electro-optic applications.
Iimpawu zeBBO Crystals:
• Isigaba esibanzi esinokungqamana noluhlu ukusuka kwi-409.6 nm ukuya kuma-3500 nm;
• Ummandla wothumelo olubanzi ukusuka kwi-190 nm ukuya kwi-3500 nm;
• I-coefficient enkulu ye-second-harmonic-generation (SHG) esebenzayo malunga namaxesha ama-6 amakhulu kune-crystal ye-KDP;
• Umda womonakalo omkhulu;
• I-homogeneity ephezulu ye-optical kunye ne-δn ≈10-6 / cm;
• Ubushushu obubanzi-i-bandwidth malunga ne-55℃.
Isaziso esibalulekileyo:
I-BBO inokuchaphazeleka okuphantsi kokufuma.Abasebenzisi bayacetyiswa ukuba babonelele ngeemeko ezomileyo zombini isicelo kunye nokugcinwa kwe-BBO.
I-BBO ithambile ngokwentelekiso kwaye ke ngoko ifuna izilumkiso zokukhusela iindawo zayo ezikhazimlisiweyo.
Xa ukulungiswa kwe-angle kuyimfuneko, nceda ugcine engqondweni ukuba i-angle yokumkela i-BBO incinci.
Ukunyamezela komlinganiselo | (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) |
Umngxuma ocacileyo | embindini we-90% yobubanziAzikho iindlela ezibonakalayo zokuchithachitha okanye amaziko xa ihlolwe yi-50mW yelaser eluhlaza. |
Ukucaba | ngaphantsi kwe L/8 @ 633nm |
Ukugqwetheka kwamaza | ngaphantsi kwe L/8 @ 633nm |
Chamfer | ≤0.2mm x 45° |
Itshiphu | ≤0.1mm |
Krwela/Yemba | ngcono kune-10/ 5 ukuya kwi-MIL-PRF-13830B |
Ukufana | ≤20 imizuzwana yearc |
Perpendicularity | ≤5 imizuzu ye-arc |
Ukunyamezela i-angle | ≤0.25 |
Umda womonakalo[GW/cm2] | >1 ye-1064nm, TEM00, 10ns, 10HZ (epolishiwe kuphela)>0.5 ye-1064nm, TEM00, 10ns, 10HZ (AR-coated)>0.3 ye-532nm, TEM00, 10ns, 10HZ (AR-coated) |
Iimpawu eziphambili | |
Ulwakhiwo lweCrystal | I-Trigonal,Iqela leSithuba R3c |
Iparamitha yeLattice | a=b=12.532Å,c=12.717Å,Z=6 |
Indawo yokunyibilika | Malunga ne-1095 ℃ |
Mohs Ubunzima | 4 |
Ukuxinana | 3.85 g/cm3 |
I-Thermal Expansion Coefficients | α11=4 x 10-6/K;α33=36x 10-6/K |
I-Thermal Conductivity Coefficients | ⊥c: 1.2W/m/K;//c: 1.6W/m/K |
Uluhlu olucacileyo | 190-3500nm |
Uluhlu lweSigaba se-SHG esinokuMatchable | 409.6-3500nm (Uhlobo I) 525-3500nm (Udidi II) |
I-Thermal-optic Coefficients (/℃) | dno/dT=-16.6x 10-6/℃ dne/dT=-9.3x 10-6/℃ |
Ii-Coefficients zokufunxa | <0.1%/cm(ku-1064nm) <1%/cm(ku-532nm) |
Ukwamkeleka kweAngle | 0.8mrad·cm (θ, Uhlobo I, 1064 SHG) 1.27mrad·cm (θ, Uhlobo II, 1064 SHG) |
Ukwamkeleka kobushushu | 55℃·cm |
Ukwamkelwa kweSpectral | 1.1nm·cm |
I-Angle yokuhamba | 2.7° (Udidi I 1064 SHG) 3.2° (Udidi II 1064 SHG) |
NLO Coefficients | deff(I)=d31sinθ+(d11cos3Φ- d22 sin3Φ) cosθq deff (II)= (d11 sin3Φ + d22 cos3Φ) cos2θ |
Ukuchaphazeleka kwe-NLO okungaphelanga | d11 = 5.8 x d36(KDP) d31 = 0.05 x d11 d22 < 0.05 x d11 |
Sellmeier Equations (λ kwi μm) | no2=2.7359+0.01878/(λ2-0.01822)-0.01354λ2 ne2=2.3753+0.01224/(λ2-0.01667)-0.01516λ2 |
I-Electro-optic coefficients | γ22 = 2.7 pm/V |
Isiqingatha sombane wamaza | 7 KV (ku-1064 nm,3x3x20mm3) |