LBO Crystal

LBO (Lithium Triborate - LiB3O5) hadda waa sheyga ugu caansan ee loo isticmaalo Jiilka Labaad ee Harmonic (SHG) ee 1064nm leysarka awoodda sare (oo lagu beddelayo KTP) iyo Sum Frequency Generation (SFG) ee 1064nm isha laser si loo gaaro iftiinka UV ee 355nm .
LBO waa weji u dhigma SHG iyo THG ee Nd:YAG iyo Nd:YLF lasers, iyadoo la adeegsanayo isdhexgalka nooca I ama nooca II.SHG-ga heerkulka qolka, nooca I wejiga u dhigma waa la gaari karaa oo wuxuu leeyahay isku-dhafka SHG ee ugu waxtarka badan ee maamulaha XY iyo XZ ee mawjadaha dhererka ballaaran ee u dhexeeya 551nm ilaa 2600nm.Waxtarka beddelka SHG oo ka badan 70% garaaca wadnaha iyo 30% cw Nd: YAG lasers, iyo wax ku oolnimada beddelka THG ee ka sarreeya 60% garaaca wadnaha Nd: YAG laser ayaa la arkay.
LBO waa crystal NLO heer sare ah oo loogu talagalay OPOs iyo OPA-yada leh mawjadaha dhererka dhererka ballaaran iyo awood sare.OPO iyo OPA kuwaas oo ay shubaan SHG iyo THG ee Nd:YAG laser iyo XeCl excimer laser oo ah 308nm ayaa la soo sheegay.Sifooyinka gaarka ah ee nooca I iyo nooca II ee iswaafajinta iyo sidoo kale NCPM waxay ka tagayaan qol weyn oo ku jira cilmi baarista iyo codsiyada LBO's OPO iyo OPA.
Faa'iidooyinka
• Daah-furnaan ballaaran oo u dhexeysa 160nm ilaa 2600nm;
Isku-naanshaha indhaha sare (δn≈10-6/cm) oo xor ka ah ka mid noqoshada;
• Iskuxidhka SHG oo wax ku ool ah oo aad u weyn (qiyaastii saddex jeer ka KDP);
Heerka waxyeelada sare;
• xagal aqbalaad ballaaran iyo socod yar;
Nooca I iyo nooca II ee u dhigma wejiga aan muhiimka ahayn (NCPM) ee baaxadda hirarka ballaaran;
• Spectral NCPM oo u dhaw 1300nm.
Codsiyada:
• In ka badan 480mW wax soo saarka ee 395nm waxaa soo saara inta jeer ee la labanlaabo habka 2W ee xiran Ti: Sapphire laser (<2ps, 82MHz).Baaxadda hirarka dhererka ee 700-900nm waxaa daboolay 5x3x8mm3 LBO crystal.
• In ka badan 80W wax soo saarka cagaarka ah waxaa helay SHG ee Q-switched Nd:YAG laser oo ah nooca II 18mm dhererka LBO crystal.
• Inta jeer ee labanlaabida diode la bamgareeyay Nd:YLF laser (>500μJ @ 1047nm,<7ns, 0-10KHz) waxay gaartaa wax ka badan 40% waxtarka beddelka ee 9mm dhererka LBO crystal.
• Wax soo saarka VUV ee 187.7 nm waxaa lagu helaa jiilka wadarta-soo noqnoqda.
• 2mJ/pulse diffraction-ku xaddidan beam at 355nm waxaa lagu helaa inta jeer ee dalool-galka oo saddex jibaarmaya Q-switched Nd:YAG laser.
Waxtarka guud ee beddelka aad u sarreeya iyo 540-1030nm dhererka hirarka dhererka ayaa la helay iyadoo OPO lagu shubay 355nm.
Nooca I OPA oo lagu shubay 355nm oo leh bamka-to-signal tamarta beddelka waxtarka ee 30% ayaa la soo sheegay.
Nooca II NCPM OPO oo lagu shubay XeCl excimer laser at 308nm ayaa gaadhay 16.5% hufnaanta beddelka, iyo kala duwanaanta hirarka dhererka dhexdhexaadka ah waxaa lagu heli karaa ilo bamgareyn kala duwan iyo hagaajinta heerkulka.
Isticmaalka farsamada NCPM, nooca I OPA ee uu shubay SHG of a Nd:YAG laser at 532nm ayaa sidoo kale lagu arkay in uu daboolo kala duwanaansho la isku hagaajin karo laga bilaabo 750nm ilaa 1800nm ​​iyadoo la hagaajinayo heerkulka laga bilaabo 106.5℃ ilaa 148.5℃.
• Adigoo isticmaalaya nooca II NCPM LBO oo ah koronto-dhaliyaha indhaha (OPG) iyo nooca I wejiga muhiimka ah ee u dhigma BBO ahaan OPA ahaan, xariiq cidhiidhi ah (0.15nm) iyo hufnaanta beddelka tamarta bamka-ilaa-signal sare (32.7%) ayaa la helay marka lagu shubo 4.8mJ, 30ps laser at 354.7nm.Hagaajinta hirarka dhererka dhererka laga bilaabo 482.6nm ilaa 415.9nm ayaa lagu daboolay iyada oo la kordhinayo heerkulka LBO ama iyada oo la beddelayo BBO.