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ZnGeP2 Nonlinear Crystals

ZnGeP2 Nonlinear Crystals

Zinc germanium phosphide (ZnGeP2) yog ib qho khoom siv zoo hauv nruab nrab ntawm IR-nonlinear nonlinear uas muaj ntau yam khoom zoo heev. ZnGeP2 (ZGP) Crystal muaj cov kab mob loj heev uas tsis muaj teeb meem (d36 ~ 75 pm / V), uas yog kwv yees li ntawm 160 zaus ntawm KDP.

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Txhawb tshuaj

Kev piav qhia

Zinc germanium phosphide (ZnGeP 2 ) yog ib qho kev zoo nkauj nruab nrab ntawm Ir-IR nonlinear siv nrog ntau yam khoom siv zog. ZnGeP2 (ZGP) Crystal muaj cov kab mob loj heev uas tsis muaj teeb meem (d36 ~ 75 pm / V), uas yog kwv yees li ntawm 160 zaus ntawm KDP. ZGP tuaj yeem pom qhov muag zoo zoo tshaj qhov ntsuas 0.74 - 12 wavelength thaj tsam thiab qhov ntsuas phaum kuj zoo nkauj, thiab yog vim li ntawd zoo tsim nyog rau kev tsim tawm cov laser tuned nyob hauv lub sab hauv pem teb. ZGP yog ib qho khoom pheej yig heev rau daim ntawv sau npe xws li SHG, SFG, OPO, thiab OPG / OPA hauv thaj av nruab nrab-sab hauv.

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Lus Cim: Qhov kis ntawm 15 hli ntev AR coated ZnGeP 2 siv lead ua

Nta

  • Kab mob kis tau yooj yim cheeb tsam ntawm 0.74 um txog 12um

  • Loj coefficient loj loj

  • Cov khoom siv zoo thiab lub cev zoo

  • Txhim khu muaj kev puas tsuaj loj heev

  • Phase matchable dua thaj av dav spectral

  • Siab thermal conductivity

Daim ntaub ntawv

  • Qhov thib ob, qhov thib peb, thiab qhov thib plaub ntawm CO 2 laser

  • Optical parametric tiam (OPO) nrog rau kev siv ntawm cov kabmob ntawm 2.05-2.94 μm thiab tau los ua kom zoo 3-10 μm ntau yam

  • Ob lub cim harmonic ntawm CO-laser

  • Ua kom muaj hluav taws xob ua ke nyob hauv sub-millimeter-range ntawm 70.0 μm txog 1000 μm - terahertz khwv

  • Kev tsim kom muaj zog ntawm CO 2 - thiab CO-lasers hluav taws xob thiab lwm lub lasers ua hauj lwm hauv thaj chaw crystal transparency

Tshuaj lom neeg thiab lub cev

Cov khoom

Tus nqi

Tshuaj formula

ZnGeP 2

Crystal qauv

Tetragonal, '42m

Lattice Parameter

a = b = 5.467Å, c = 12.736Å

Pawg ceev

4.16 g / cm 3

Moh hardness

5.5

Melting point

Txog 1040 ° C

Thermal conductivity

180 W / m / K

Thermal expansion coefficient

β‖, 5 x 10 -6 / K; Khiav tawm, 7.8 x 10 -6 / K

Birefringence

zoo uniaxial

Tawm Cov Khoom Muag

Cov khoom

Tus nqi

Transparency Ntau

0.74 - 12 Hli

Kev Co Nqis:

α <0.05cm>-1 @ 2050-2100 nm

Refractive Indices

@ 2.05 um

Lus hauv no teb 2.79 um

@ 5.30 um

@ 10.6 um

tsis yog = 3.1478, ne = 3.1891

tsis yog = 3.1333, ne = 3.1744

tsis yog = 3.1136, ne = 3.1547

tsis muaj = 3.0729, ne = 3.1143

Sellmeier sib npaug (λ hauv μm)

n o 2 (λ) = 4.64467 + 5.10087 / (λ 2 -0.13656) + 4.27777-2 2 / (λ 2 -1653.89)

n e 2 (λ) = 4.71539 + 5.26358 / (λ 2 -0.14386) + 2.37310λ 2 / (λ 2 -1000.82)

Nonlinear Optical Properties

Cov khoom

Tus nqi

SHG Phem Matchable Khwv

3177 ~ 10357nm (Hom Kuv)

NLO coefficients

d 36 = 75 ± 8 teev tsaus ntuj / V

Hom Ⅰ uas yog = d 36 sin2Θcos2φ

Hom Ⅱ d oeo = d eoo = d 36 sinΘsin2φ

Puas tsuaj dua

ntawm 2.79 um

ntawm 10.6 um

30 GW / cm 2 (150 ps)

1 GW / cm 2 (2 ms)

Daim duab 2. OPO tuning curves ntawm ZGP nrog lub teeb twj ntawm 2090 nm

Daim duab 3. OPO tuning curves ntawm ZGP nrog lub teeb twj ntawm 2800 nm

Daim duab 4. SHG curves ntawm ZGP (TypeI (eeo))

Kev Cuam Tshuam

Cov khoom

Tus nqi

Kev Taw Qhia Kev Nyiam

<0.5>

Thickness / Tooj Kev Ncaj Ncees

± 0.05 hli

Kev Xo Caij Nto

<λ 8="" @="" 632="">

Wavefront Distortion

<λ 4="" @="" 632="">

Nto Zoo

10/5

Tshajplaws

30 "

Perpendicular

15 '

Ntshiab Aperture

> 90%

Chamfer

<0.2 ×="" 45="">

Txheem cov khoom

Crystal

dimension / hli

Daim ntawv thov

Kev Taw Qhia

Theta / Moob deg

Coatings

7x5 x 15

OPO @ 2.1-> 3.5-5 μm

54/0

AR @ 2.1μm + BBAR @ 3.5-5μm

7x5x20

OPO @ 2.1-> 3.5-5 μm

54/0

AR @ 2.1μm + BBAR @ 3.5-5μm

7x5 x 25

OPO @ 2.1-> 3.5-5 μm

54/0

AR @ 2.1μm + BBAR @ 3.5-5μm

Q & A

Q: Dab tsi yog qhov tsis haum?

A: Ib pawg ntawm cov tswv yim los mus sib txig sib luag ntawm kev sib koom tes hauv ib nrab. Muaj ntau txheej txheem tsis tshua muaj theem-kev tsis tshua muaj tus qauv, xws li kev ua haujlwm ntau zaus xws li zaus qhov sib xyaw, qhov sib txawv thiab qhov sib txawv ntawm cov cim, qhov kev hloov ua kom haum thiab oscillation, thiab tseem muaj plaub-nthwv sib tov, yuav tsum tau ua rau theem zoo. Yeej tseemceeb, qhov no txhais tau tias kom muaj kev sib raug zoo ntawm cov kev tsis sib haum (rau kev hloov tsis tau zoo txog kev hloov nonlinear) uas yog tswj raws qhov kev qhia tawm. Tsuas yog tias qhov mob ntawd muaj tiav, qhov muaj peev xwm pab tau los ntawm ntau qhov chaw rau cov khoom yoj hluav taws yog tag nrho hauv theem tom kawg ntawm nonlinear Crystal.

Q: Dab tsi yog Second harmonic generation (SHG)?

A: SHG yog ib txoj hlua nonlinear kho, uas cov photons nrog tib zaus sib cuam tshuam nrog cov khoom siv nonlinear zoo "ua ke" los tsim cov photons tshiab nrog ob zaug lub zog, thiab yog li no ob zaug qhov zaus thiab ib nrab ntawm lub wavelength ntawm cov thawj cov photons.


Nrog Nonlinear Crystals muag, nws yog ib qho ntawm cov leading manufacturers thiab cov khoom siv zoo zngep2 nonlinear muaju, txais tos mus yuav thiab cov khoom lag luam wholesale ntawm tus nqi ntawm peb lub koom haum.

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