ZnGeP2 - Infrared Optics aan toos ahayn oo buuxa
Sharaxaada Alaabta
Sababo la xiriira sifooyinkan gaarka ah, waxaa loo yaqaanaa mid ka mid ah agabyada ugu rajo-gelinta badan ee codsiyada indhaha ee aan tooska ahayn. ZnGeP2 waxay soo saari kartaa 3-5 μm laser tunable oo joogto ah oo la saaray iyada oo la adeegsanayo tignoolajiyada oscillation parametric (OPO). Laser, ka shaqeeya daaqada gudbinta atmospheric ee 3-5 μm ayaa muhiimad weyn u leh codsiyo badan, sida cabbirka miiska infrared, la socodka kiimikada, qalabka caafimaadka, iyo dareenka fog.
Waxaan bixin karnaa ZnGeP2 tayo sare leh oo leh isugeyn aad u hooseeya oo nuugista α <0.05 cm-1 (mawjadaha dhererka bamka 2.0-2.1 µm), kaas oo loo isticmaali karo in lagu dhaliyo laser-tunable-infrared dhexdhexaad ah oo leh hufnaan sare iyada oo loo marayo hababka OPO ama OPA.
Awoodeena
Tiknoolajiyada goobta heerkulka firfircoon ayaa la sameeyay oo lagu dabaqay si loo farsameeyo ZnGeP2 polycrystalline. Iyada oo loo marayo tignoolajiyadan, in ka badan 500g oo nadiif ah oo sarreeya ZnGeP2 polycrystalline oo leh miro waaweyn ayaa lagu sameeyay hal orod.
Habka qaboojinta Horizontal Gradient oo ay weheliso Tignoolajiyada Qoorta Toosan (taas oo hoos u dhigi karta cufnaanta kala-baxa si hufan) ayaa si guul leh loogu dabaqay kobaca tayada sare leh ee ZnGeP2.
Heerka kiiloogaraam ee tayada sare leh ZnGeP2 oo leh dhexroorka adduunka ugu weyn (Φ55 mm) ayaa si guul leh u koray habka Gradient Freeze.
Qallafsanaanta dusha sare iyo fidsanaanta aaladaha crystal, in ka yar 5Å iyo 1/8λ siday u kala horreeyaan, ayaa lagu helay tignoolajiyada daawaynta dusha fiican ee dabinka.
Xagasha ugu dambeeya ee aaladaha crystal-ka ayaa ka yar 0.1 darajo sababtoo ah adeegsiga jihaynta saxda ah iyo farsamooyinka goynta saxda ah.
Aaladaha leh waxqabad aad u wanaagsan ayaa la gaarey sababtoo ah tayada sare ee kiristaalo iyo tignoolajiyada farsamaynta heer-sare ee crystal (3-5μm dhexda-infrared tunable laser ayaa la soo saaray iyadoo hufnaanta beddelka ka weyn tahay 56% marka lagu shubo iftiinka 2μm isha).
Kooxdayada cilmi-baarista, iyada oo loo marayo sahaminta joogtada ah iyo hal-abuurka farsamada, ayaa si guul leh u bartay tignoolajiyada isku-dhafka ah ee ZnGeP2 polycrystalline ee nadiifka ah, tignoolajiyada kobaca ee cabbirka weyn iyo tayada sare ee ZnGeP2 iyo hanuuninta crystal iyo farsamada farsamaynta saxda ah; waxay ku siin kartaa aaladaha ZnGeP2 iyo kiristaalo asalka u koray oo cabirkoodu sarreeyo oo leh lebbis sare, isugeyn hoose oo nuugista, xasillooni wanaagsan, iyo hufnaanta beddelka sare. Isla mar ahaantaana, waxaanu samaynay dhamaan qalabka tijaabada waxqabadka crystal kaas oo naga dhigaya awooda aan ku bixino adeegyada tijaabada waxqabadka crystal ee macaamiisha.
Codsiyada
● Jiilka labaad, saddexaad, iyo afraad ee isku-dhafan ee CO2-laser
● Jiilka parametric ee indhaha leh oo bamgareynaya dhererka hirarka 2.0 µm
● Jiilka labaad ee iswada leh ee CO-laser
● Soo saarida shucaac isku xidhan oo u dhexeeya 70.0 µm ilaa 1000 µm
● Dhalinta isku-darka isku-darka CO2- iyo shucaaca CO-laser-ka iyo laysarka kale ayaa ka shaqaynaya gobolka daah-furnaanta.
Guryaha aasaasiga ah
| Kiimiko | ZnGeP2 |
| Crystal Symmetry iyo Fasalka | tetragonal, -42m |
| Halbeegyada Lattice | a = 5.467 Å c = 12.736 Å |
| Cufnaanta | 4.162 g/cm3 |
| Mohs Hardness | 5.5 |
| Heerka indhaha | Uniaxial togan |
| Xadka Gudbinta Faa'iidada leh | 2.0 um - 10.0 um |
| Habdhaqanka kulaylka @ T= 293 K | 35 W/m∙K (⊥c) 36 W/m∙K ( ∥ c) |
| Balaadhinta kulaylka @ T = 293 K ilaa 573 K | 17.5 x 106 K-1 (⊥c) 15.9 x 106 K-1 ( ∥ c) |
Qiyaasaha Farsamada
| Dulqaadka dhexroorka | +0/-0.1 mm |
| Dulqaadka dhererka | ±0.1 mm |
| Dulqaadka Hanuuninta | <30 arcmin |
| Tayada dusha sare | 20-10 SD |
| Fiican | <λ/4@632.8 nm |
| Isbarbar yaac | <30 arc |
| Si toos ah | <5 arcmin |
| Chamfer | <0.1 mm x 45° |
| Kala duwanaanshaha daahfurnaanta | 0.75 - 12.0 ?m |
| Iskuxidhka aan tooska ahayn | d36 = 68.9 pm/V (waqtiga 10.6μm) d36 = 75.0 pm/V (9.6 μm) |
| Xadka Burburka | 60 MW/cm2 ,150ns@10.6μm |
