GaSe Crystal

Gallium Selenide (GaSe) non-linear optical ib leeg siv lead ua, sib txuas cov coefficient loj uas tsis yog-linear, muaj kev puas tsuaj loj thiab ntau qhov pom tseeb.GaSe yog ib qho khoom siv zoo heev rau SHG hauv nruab nrab IR.DIEN TECH UAmuab GaSe siv lead ua muaj qhov tshwj xeeb loj thiab zoo.

Qhov zaus-doubling zog ntawm GaSe tau kawm nyob rau hauv lub wavelength thaj tsam ntawm 6.0 µm thiab 12.0 µm.GaSe tau ntse siv rau SHG zoo ntawm CO2 laser (txog 9% hloov dua siab tshiab);rau SHG ntawm pulsed CO, CO2 thiab tshuaj DF-laser (l = 2.36 µm) hluav taws xob;upconversion ntawm CO thiab CO2 laser hluav taws xob mus rau qhov pom ntau yam;infrared pulses tiam ntawm qhov sib txawv zaus sib xyaw ntawm Neodymium thiab infrared dye laser lossis (F-)-centre laser pulses;OPG lub teeb tsim nyob rau hauv 3.5-18 µm;terahertz (T-rays) hluav taws xob tiam.Nws yog tsis yooj yim sua kom txiav cov crystals rau qee lub sij hawm sib piv cov ces kaum vim cov khoom siv (cleave raws (001) dav hlau) txwv qhov chaw ntawm daim ntawv thov.
GaSe yog mos heev thiab txheej siv lead ua.Rau kev tsim cov khoom siv lead ua nrog cov tuab tuab peb siv cov tuab pib dawb paug, piv txwv li, 1-2 hli tuab thiab tom qab ntawd pib tshem tawm txheej los ntawm txheej sim mus kom ze rau qhov txiav kom tuab thaum ua kom zoo nto smoothness thiab flatness.Txawm li cas los xij, rau cov thicknesses txog 0.2-0.3 hli los yog tsawg dua GaSe phaj yooj yim khoov thiab peb tau txais nkhaus nto es tsis txhob tiaj tus.
Yog li peb feem ntau nyob ntawm 0.2 hli thickness rau 10x10 mm siv lead ua mounted nyob rau hauv dia.1 '' tuav nrog CA qhib dia.9-9.5 hli.
Qee lub sij hawm peb lees txais kev txiav txim rau 0.1 hli crystals, txawm li cas los xij, peb tsis lav zoo flatness rau nyias muaju.
Kev siv ntawm GaSe crystals:
• TSH (T-rays) hluav taws xob tiam;
• THz Range: 0.1-4 THz;
• Ua tau zoo SHG ntawm CO 2 laser (txog 9% hloov dua siab tshiab);
• Rau SHG ntawm pulsed CO, CO2 thiab tshuaj DF-laser (l = 2.36 mkm) hluav taws xob;
• Upconversion ntawm CO thiab CO2 laser hluav taws xob mus rau qhov pom ntau yam;infrared pulses tiam ntawm qhov sib txawv zaus sib xyaw ntawm Neodymium thiab infrared dye laser lossis (F-)-centre laser pulses;
• OPG lub teeb tsim nyob rau hauv 3.5 - 18 mkm.
SHG hauv nruab nrab IR (CO2, CO, tshuaj DF-laser thiab lwm yam)
upconversion ntawm IR laser hluav taws xob mus rau qhov pom ntau yam
Parametric tsim nyob rau hauv 3-20 µm
Cov khoom tseem ceeb ntawm GaSe crystals:
Transparency ntau yam, µm 0.62 - 20
PIB 6m2
Lattice parameters a = 3.74, c = 15.89 Å
Qhov ceev, g / cm3 5.03
Mohs hardness 2
Refractive indexes:
5.3 µm no = 2.7233, ne = 2.3966
10.6 µm tsis = 2.6975, ne = 2.3745
Tsis-linear coefficient, pm / V d22 = 54
Taug kev 4.1° ntawm 5.3 µm
Kev puas tsuaj kho qhov muag, MW / cm2 28 (9.3 µm, 150 ns);0.5 (10.6 µm, hauv CW hom);30 (1.064 µm, 10 ns)