Potassium dideuterium phosphate (DKDP) luhlobo lwekristale ye-optical nonlinear eneempawu ezibalaseleyo ze-electro-optic ezaphuhliswa ngo-1940s. Isetyenziswa ngokubanzi kwi-optical parametric oscillation, i-electro-optic Q-ukutshintsha, i-electro-optic modulation njalo njalo. DKDP crystal ineizigaba ezibini: isigaba se-monoclinic kunye nesigaba se-tetragonal. I luncedo Ikristale ye-DKDP sisigaba se-tetragonal esika-D_2d-42m iqela point kunye ID¹²_2d -42d iqela lendawo. I-DKDP yi-isomorphicisakhiwo yepotassium dihydrogen phosphate (KDP). I-Deuterium ithatha indawo ye-hydrogen kwikristale ye-KDP ukuphelisa impembelelo yokufunxa kwe-infrared ebangelwa kukungcangcazela kwe-hydrogen.DKDP crystal nge ibuzi eliphezulu deuterationio unayo ngcono electro-optical iipropati kwaye ngcono iipropati ezingaqhelekanga.

Ukususela ngo-1970, uphuhliso laser Iphakathi Cukuhlawula Fiteknoloji yokusetyenziswa (ICF) ikhuthaze kakhulu ukuphuhliswa kweekristale zefotoelectric, ngakumbi i-KDP kunye ne-DKDP. Njengoko i i-electro-optical kunye ne-nonlinear optical material isetyenziswe kwi I-ICF, ikristale yi Kuyafuneka ukuba kubekho ukuhanjiswa okuphezulu kwiibhanti zamaza ukusuka kufuphi ne-ultraviolet ukuya kufuphi ne-infrared, i-coefficient enkulu ye-electro-optical kunye ne-nonlinear coefficient, i-threshold yomonakalo omkhulu, kunye ukuba ekwaziyo ukuba lungiselelad kwi umngxuma omkhulu kunye ne umgangatho ophezulu-optical. Ukuza kuthi ga ngoku, kuphela iikristale ze-KDP kunye ne-DKDP ukuhlangabezana nese iimfuno.

I-ICF ifuna ubukhulu be-DKDP icandelo ukufikelela kwi-400 ~ 600 mm. Ngokuqhelekileyo kuthatha iminyaka eyi-1 ~ 2 ukukhulaDKDP crystal nge ubungakanani obukhulu kangaka ngendlela yemveli ye ukupholisa isisombululo samanzi, ngoko ke umsebenzi omninzi wophando uye wenziwa zuza ukukhula ngokukhawuleza kweekristale ze-DKDP. Ngowe-1982, uBespalov et al. wafunda iteknoloji yokukhula ngokukhawuleza kwe-crystal ye-DKDP enecandelo elinqamlezayo le-40 mm×I-40 mm, kwaye izinga lokukhula lifike kwi-0.5-1.0 mm / h, eyayingumyalelo wobukhulu obuphezulu kunendlela yendabuko. Ngowe-1987, uBespalov et al. ukhule ngempumelelo iikristale zeDKDP ezikumgangatho ophezulu nge ubukhulu be-150 mm×150 mm×80 mm nge usebenzisa indlela efanayo yokukhula ngokukhawuleza. Ngowe-1990, Chernov et al. ifunyenwe iikristale ze-DKDP ezinobunzima be-800 g ngokusebenzisa inqaku-indlela yembewu. Izinga lokukhula kweekristale ze-DKDP kwi Z-indlela ukufikelelad 40-50 mm/d, kunye nabo bangaphakathi X- kunye neY-imiyalelo ukufikelelad 20-25 mm/d. Lawrence Livermore Kuzwelonke ILabhoratri (LLNL) yenze uphando oluninzi malunga nokulungiselela ubungakanani obukhulu bekristale zeKDP kunye neekristale zeDKDP kwiimfuno ze-N.ngokwendalo Indawo yokutshisa (NIF) yaseMelika. Ngo-2012,Abaphandi baseTshayina baphuhlisiwe ikristale ye-DKDP enobungakanani be-510 mm×390 mm×520 mm apho icandelo le-DKDP ekrwada yohlobo II ukuphindaphinda kabini kunye nobungakanani be-430 mm yaba yenziwe.

Izicelo ze-Electro-optical Q-switching zifuna iikristale ze-DKDP ezinomxholo ophezulu we-deuterium. Ngowe-1995, Zaitseva et al. ikhule i-crystals ye-DKDP enomxholo ophezulu we-deuterium kunye nesantya sokukhula kwe-10-40 mm / d. Ngowe-1998, Zaitseva et al. ifunyenwe iikristale ze-DKDP ezinomgangatho olungileyo we-optical, ingxinano ephantsi ye-dislocation, i-optical uniformity kunye nomda womonakalo ophezulu ngokusebenzisa indlela yokucoca eqhubekayo. Kwi-2006, indlela ye-photobath yokulima i-deuterium ephezulu ye-DKDP crystal yayinelungelo lobunikazi. Kwi-2015, iikristale ze-DKDP kunye impuku deuterationio ye-98% kunye nobukhulu be-100 mm×105 mm×Ama-96 mm akhuliswe ngempumelelo ngamanqaku-imbewu indlela kwiYunivesithi yaseShandong yaseTshayina. Thyi ikristale ayinayo i-macro defect ebonakalayo, kwaye yayo i-refractive index asymmetry ingaphantsi kwe-0.441 ppm. Kwi-2015, iteknoloji yokukhula ngokukhawulezayekristale ye-DKDP nge deuteration ratio ye 90% yasetyenziswa okokuqala eTshayina ukulungiselela Q-tshintshaimathiriyeli, ebonisa ukuba iteknoloji yokukhula ngokukhawuleza ingasetyenziselwa ukulungiselela i-430 mm ububanzi be-DKDP electro-optical Q-switchnge icandelo ifunwa yi-ICF.

Ikristale ye-DKDP iphuhliswe yi-WISOPTIC (Deuteration> 99%)

Iikristale ze-DKDP ezivezwe emoyeni ixesha elide ziya babe umphezulu delirium kunye nebulukufakwa, okuya kukhokelela ekunciphiseni okukhulu kumgangatho we-optical kunye nokulahleka kokusebenza koguqulo. Ngoko ke, kuyimfuneko ukutywina i-crystal xa ulungiselela i-electro-optic Q-switch. Ukuze kuncitshiswe ukubonakaliswa kokukhanyakwi ifestile yokutywinas ye-Q-switch kunye kwi iindawo ezininzi zekristale, isalathiso serefractive ehambelana nolwelo luhlala lutofwa esithubeni phakathi kwekristale kunye nefestiles. Nokuba wngaphandle umchasi-Ukwaleka okukhanyayo,tugqithiso ingayi inyuke ukusuka kuma-92% ukuya kuma-96%-97% (ubude obuyi-1064 nm) ngo usebenzisa Isalathiso esihambelanayo serefractive. Ukongeza, ifilimu ekhuselayo ikwasetyenziswa njengomlinganiselo wobungqina bokufuma. Xionget al. walungisa uSiO₂ ifilimu ye-colloidal kunye imisebenzi ye Ubungqina bokufuma kunye ne-anti-reflectikwi. Ugqithiso lufikelele kuma-99.7% (i-wavelength 794 nm), kunye nomda womonakalo we-laser ufikelele kwi-16.9 J / cm² (ubude be-1053 nm, ububanzi be-pulse 1 ns). Wang Xiaodong et al. ilungisiwe a ifilimu ekhuselayo nge usebenzisa i-polysiloxane glass resin. Umda womonakalo we-laser ufikelele kwi-28 J / cm² (ubude be-wavelength 1064 nm, ububanzi be-pulse 3 ns), kunye neempawu ze-optical zahlala zizinzile ngokufanelekileyo kwindawo engqongileyo kunye nomswakama ophezulu ngaphezu kwe-90% kwiinyanga ze-3.

Yahluke kwikristale ye-LN, ukuze woyise impembelelo ye-birefringence yendalo, Ikristale ye-DKDP ithatha ubukhulu becala ukumodareyitha kwe-longitudinal. Xa i-electrode yeringi isetyenziswa, ubude bekristale kwiumqadi ulwalathiso kufuneka lube lukhulu kunekristale’s ububanzi, ukuze ufumane intsimi yombane efanayo, leyo ke ngoko kwandisa i ukufunxa ukukhanya kwikristale kwaye umphumo we-thermal uya kukhokelela kwi-depolarization at umndilili ophezulu wamandla.

Phantsi kwemfuno ye-ICF, ukulungiswa, ukusetyenzwa kunye neteknoloji yesicelo sekristale ye-DKDP ziye zaphuhliswa ngokukhawuleza, nto leyo eyenza ukuba i-DKDP electro-optic Q-switshi isetyenziswe ngokubanzi kunyango lwe-laser, ubuhle be-laser, ukukrolwa kwelaser, ukuphawula kwe-laser, uphando lwezenzululwazi. kunye neminye imimandla yokusetyenziswa kwelaser. Nangona kunjalo, ubuqhophololo, ilahleko ephezulu yokufaka kunye nokungakwazi ukusebenza kubushushu obuphantsi kuseyimiqobo ethintela ukusetyenziswa okubanzi kweekristale ze-DKDP.

DKDP Pockels iseli eyenziwe WISOPTIC