LBO (Lithium Triborate - LiB3O5) joale ke lisebelisoa tse sebelisoang haholo bakeng sa Second Harmonic Generation (SHG) ea 1064nm high power lasers (e le sebaka sa KTP) le Sum Frequency Generation (SFG) ea mohloli oa laser oa 1064nm ho fihlela leseli la UV ho 355nm. .
LBO e ka tsamaellana le SHG le THG tsa Nd:YAG le Nd:YLF lasers, ho sebelisoa mofuta oa I kapa mofuta oa II oa ho sebelisana.Bakeng sa SHG mochesong oa kamore, ho bapisa karolo ea mofuta oa I ho ka fihlelleha 'me ho na le palo e phahameng ka ho fetisisa ea SHG coefficient sefofaneng sa XY le XZ se seholo ka bophara ba maqhubu ho tloha ho 551nm ho isa ho 2600nm.Ho sebetsa hantle ha SHG ho feta 70% bakeng sa pulse le 30% bakeng sa cw Nd:YAG lasers, le katleho ea phetoho ea THG e fetang 60% bakeng sa pulse Nd:YAG laser e hlokometsoe.
LBO ke kristale e ntle ka ho fetisisa ea NLO bakeng sa li-OPO le li-OPA tse nang le mefuta e mengata ea bolelele ba maqhubu le matla a phahameng.Li-OPO tsena le OPA tse pompetsoeng ke SHG le THG ea Nd:YAG laser le XeCl excimer laser ka 308nm li tlalehiloe.Thepa e ikhethang ea mofuta oa I le mofuta oa II oa ho bapisa le NCPM e siea phaposi e kholo lipatlisisong le lits'ebetsong tsa LBO's OPO le OPA.
Melemo:
• Ponaletso e pharalletseng e tloha ho 160nm ho isa 2600nm;
• Homogeneity e phahameng ea optical (δn≈10-6 / cm) le ho ba ntle ho kenyelletso;
• Coefficient ea SHG e sebetsang hantle haholo (hoo e ka bang makhetlo a mararo ho feta ea KDP);
• Moeli o phahameng oa tšenyo;
• Tsela e pharaletseng ea kamohelo le sebaka se senyenyane sa ho tsamaea;
• Mofuta oa I le mofuta oa II o bapisang mohato o sa hlokahaleng (NCPM) ka bongata bo boholo ba maqhubu;
• Spectral NCPM haufi le 1300nm.
Lisebelisoa:
• Phatlalatso e fetang 480mW ho 395nm e hlahisoa ka makhetlo a mabeli a 2W a notletsoeng ka mokhoa oa Ti:Sapphire laser (<2ps, 82MHz).Leqhubu la bolelele ba 700-900nm le koahetsoe ke kristale ea 5x3x8mm3 LBO.
• Ho feta 80W tlhahiso e tala e fumanoa ke SHG ea Q-switched Nd: YAG laser ka mofuta oa II 18mm bolelele ba kristale ea LBO.
• Ho imena habeli ha diode pumped Nd:YLF laser (>500μJ @ 1047nm,<7ns, 0-10KHz) ho fihlella ho feta 40% ea katleho ea phetoho ka kristale ea LBO e bolelele ba 9mm.
• Phallo ea VUV ho 187.7 nm e fumanoa ka tlhahiso ea kakaretso ea maqhubu.
• 2mJ / pulse diffraction-limited beam ho 355nm e fumanoa ka intracavity frequency tripling Q-switched Nd: YAG laser.
• Phetoho e sebetsang hantle ka kakaretso le 540-1030nm leqhubu la bolelele bo fumanweng ka OPO e pompetsoeng ka 355nm.
• Mofuta oa I OPA o pompetsoeng ka 355nm ka matla a phetolo ea pompo-to-signal a 30% e tlalehiloe.
• Mofuta oa II oa NCPM OPO o pompetsoeng ka laser ea XeCl excimer ho 308nm e fihletse katleho ea phetoho ea 16.5%, 'me mefuta e itekanetseng ea maqhubu a maqhubu e ka fumanoa ka mehloli e fapaneng ea ho pompa le ho lokisa mocheso.
• Ka ho sebelisa mokhoa oa NCPM, mofuta oa I OPA o pompetsoeng ke SHG ea laser ea Nd:YAG e 532nm e ile ea boela ea hlokomeloa ho koahela mefuta e mengata e fapaneng e ka sebelisoang ho tloha ho 750nm ho ea ho 1800nm ka tokiso ea mocheso ho tloha 106.5℃ ho ea 148.5℃.
• Ka ho sebelisa mofuta oa II NCPM LBO e le jenereithara ea optical parametric (OPG) le mofuta oa I critical phase-matched BBO e le OPA, mola o mosesaane (0.15nm) le matla a phahameng a ho fetola pompo-to-signal (32.7%) a fumanoe. ha e pompeloa ka laser ea 4.8mJ, 30ps ho 354.7nm.Leqhubu la tokiso ea maqhubu ho tloha 482.6nm ho isa 415.9nm le ne le koaheloa ke ho eketsa mocheso oa LBO kapa ka ho potoloha BBO.
Thepa ea motheo | |
Sebopeho sa Crystal | Orthorhombic, sehlopha sa Space Pna21, sehlopha sa lintlha mm2 |
Lattice Parameter | a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2 |
Melting Point | Hoo e ka bang 834 ℃ |
Mohs Hardness | 6 |
Botenya | 2.47g/cm3 |
Li-Coeficients tsa Katoloso ea Mocheso | αx=10.8×10-5/K, αy=-8.8×10-5/K,αz=3.4×10-5/K |
Thermal Conductivity Coefficients | 3.5W/m/K |
Transparency Range | 160-2600nm |
SHG Phase Matchable Range | 551-2600nm (Mofuta oa I) 790-2150nm (Mofuta II) |
Therm-optic Coefficient (/℃, λ in μm) | dnx/dT=-9.3X10-6 |
Li-coefficients tsa ho monya | <0.1%/cm ho 1064nm <0.3%/cm ho 532nm |
Kamohelo ea Angle | 6.54mrad·cm (φ, Mofuta oa I,1064 SHG) |
Kamohelo ea Mocheso | 4.7℃·cm (Mofuta oa I, 1064 SHG) |
Kamohelo ea Spectral | 1.0nm·cm (Mofuta oa I, 1064 SHG) |
Walk-off Angle | 0.60° (Mofuta oa I 1064 SHG) |
Tekheniki Parameters | |
Mamello ea boholo | (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) limilimithara) (L<2.5mm) |
Phapang e hlakileng | bohareng ba 90% ea bopharaHa ho litsela kapa litsi tsa ho hasana tse bonahalang ha li hlahlojoa ke laser e tala ea 50mW |
Bophatlalatsi | ka tlase ho λ/8 @ 633nm |
Ho fetisoa ho sotha ha maqhubu | ka tlase ho λ/8 @ 633nm |
Chamfer | ≤0.2mm x 45° |
Chip | ≤0.1mm |
Qhepa/ Cheka | betere ho feta 10/5 ho MIL-PRF-13830B |
Ho bapisa | molemo ho feta 20 arc metsotsoana |
Perpendicularity | ≤5 arc metsotso |
Ho mamellana le angle | △θ≤0.25°, △φ≤0.25° |
Moeli oa tšenyo[GW/cm2] | >10 bakeng sa 1064nm, TEM00, 10ns, 10HZ (e betliloeng feela)>1 bakeng sa 1064nm, TEM00, 10ns, 10HZ (AR-coated)>0.5 bakeng sa 532nm, TEM00, 10ns, 10HZ (AR-coated) |