ZnTe Crystal

Semiconductor THz Crystals: ZnTe (Zinc Telluride) crystals nrog <110> kev taw qhia yog siv rau THz tiam los ntawm cov txheej txheem kho qhov muag.Optical rectification yog qhov sib txawv zaus tsim nyob rau hauv xov xwm nrog loj thib ob txiav txim susceptibility.Rau femtosecond laser pulses uas muaj bandwidth loj cov zaus feem cuam tshuam nrog ib leeg thiab lawv qhov sib txawv tsim bandwidth ntawm 0 mus rau ntau THz.Kev kuaj pom ntawm THz pulse tshwm sim los ntawm qhov chaw dawb ntawm electro-optic nrhiav pom hauv lwm qhov <110> taw qhia ZnTe siv lead ua.Lub THz pulse thiab pom pulse yog propagated collinearly los ntawm ZnTe siv lead ua.Lub THz pulse induces ib tug birefringence nyob rau hauv ZnTe siv lead ua uas yog nyeem tawm los ntawm ib tug linearly polarized pom mem tes.Thaum ob qho tib si pom pulse thiab THz mem tes nyob rau hauv cov siv lead ua tib lub sijhawm, qhov pom polarization yuav tig los ntawm THz pulse.Siv lub λ / 4 waveplate thiab beamsplitting polarizer ua ke nrog cov txheej txheem ntawm cov duab sib luag, nws tuaj yeem ua daim ntawv qhia THz mem tes amplitude los ntawm kev saib xyuas qhov pom pom pulse polarization rotation tom qab ZnTe siv lead ua ntawm ntau lub sijhawm ncua nrog kev hwm ntawm THz pulse.Lub peev xwm los nyeem tawm tag nrho cov hluav taws xob, ob qho tib si amplitude thiab ncua sij hawm, yog ib qho ntawm cov yam ntxwv ntxim nyiam ntawm lub sijhawm THz spectroscopy.ZnTe kuj tseem siv rau IR optical Cheebtsam substrates thiab lub tshuab nqus tsev deposition.