Intangiriro
Umucyo wo hagati (MIR) urumuri ruri hagati ya 2-20 µm ni ingirakamaro mu kumenyekanisha imiti n’ibinyabuzima bitewe no kuba hari imirongo myinshi ya molekuline iranga iyinjira muri kariya karere.Ihuriro, bike-soko yinkomoko hamwe icyarimwe icyarimwe murwego rwagutse rwa MIR irashobora kurushaho gutuma porogaramu nshya nka mirco-spectroscopy, femtosekond pump-probe spectroscopy, hamwe na dinamike-nini-yipima ibyiyumvo Kugeza ubu gahunda nyinshi zifite
byakozwe kugirango bibyare imirasire ya MIR, nk'imirongo ya synchrotron, imirongo ya kwant cascade, amasoko ya supercontinuum, oscillator optique (OPO) hamwe na amplificateur optique (OPA).Izi gahunda zose zifite imbaraga nintege nke zazo mubijyanye ningorabahizi, umurongo mugari, imbaraga, imikorere, hamwe nigihe cyigihe.Muri byo, itandukaniro-intera itandukanya inshuro nyinshi (IDFG) irimo gukurura abantu benshi bitewe niterambere ryimbaraga za femtosecond 2 µm laseri zishobora kuvoma neza-bandgap nto-oxyde idafite umurongo wa kirisiti kugirango habeho urumuri rwinshi rwumurongo mugari wa MIR.Ugereranije na OPO isanzwe ikoreshwa na OPA, IDFG ituma igabanuka rya sisitemu igoye no kongera ubwizerwe, kuko gukenera guhuza ibiti bibiri cyangwa umwobo utandukanijwe neza.Uretse ibyo, ibisohoka MIR ni ubwikorezi-ibahasha-icyiciro (CEP) gihamye hamwe na IDFG.
Igishushanyo 1
Ikwirakwizwa ryikwirakwizwa rya 1-mm-yuburebure budafunzeBGSe kristuyatanzwe na DIEN TECH.Inet yerekana kristu nyayo yakoreshejwe murubu bushakashatsi.
Igishushanyo 2
Ubushakashatsi bwikigereranyo cya MIR hamwe na aBGSe kristu.OAP, indorerwamo ya parabolike idafite uburebure bwa mm 20;HWP, isahani y-igice;TFP, polarize yoroheje;LPF, inzira-ndende.
Mu mwaka wa 2010, biaxial chalcogenide idafite umurongo wa kirisiti, BaGa4Se7 (BGSe), yahimbwe hakoreshejwe uburyo bwa Bridgman-Stockbarger.Ifite umucyo mugari kuva 0.47 kugeza 18 µm (nkuko bigaragara ku gishushanyo 1) hamwe na coefficient idafite umurongo wa d11 = 24.3 pm / V na d13 = 20.4 pm / V.Idirishya rikorerwa muri BGSe ryagutse cyane kurenza ZGP na LGS nubwo kutagira umurongo biri munsi ya ZGP (75 ± 8 pm / V).Bitandukanye na GaSe, BGSe irashobora kandi gucibwa kumurongo wifuzaga guhuza kandi irashobora kuba anti-reaction.
Ubushakashatsi bwerekanwe mubishushanyo 2 (a).Imodoka yo gutwara ibanza ikorwa muburyo bwubatswe na Kerr-lens uburyo bwafunzwe Cr: ZnS oscillator hamwe na polycrystalline Cr: ZnS kristal (5 × 2 × 9 mm3, kwanduza = 15% kuri 1908nm) nkinyungu yapompa na a Tm-ikoporora fibre laser kuri 1908nm.Kunyeganyega mu mwobo uhagaze-utanga impiswi 45-fs ikora ku gipimo cyo gusubiramo cya 69 MHz hamwe n'impuzandengo ya 1 W ku burebure bwa 2,4 µm.Imbaraga zongerewe kuri 3.3 W munzu yubatswe munzu ibyiciro bibiri imwe-imwe ya polycrystalline Cr: amplifier ya ZnS (5 × 2 × 6 mm3, kwanduza = 20% kuri 1908nm na 5 × 2 × 9 mm3, kwanduza = 15% kuri 1908nm), hamwe nibisohoka impiswi igihe cyapimwe hamwe nurugo rwubatswe na kabiri-ihuza-ibisekuruza-byinshyi byakemuwe na optique ya optique (SHG-FROG).
