Zithunzi za PPKTP

Polid potassium titanyl phosphate (PPKTP) ndi ferroelectric nonlinear crystal yokhala ndi mawonekedwe apadera omwe amathandizira kutembenuka kwafupipafupi kudzera mu quasi-phase-matching (QPM).

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Tsatanetsatane wa Zamalonda

Polid potassium titanyl phosphate (PPKTP) ndi ferroelectric nonlinear crystal yokhala ndi mawonekedwe apadera omwe amathandizira kutembenuka kwafupipafupi kudzera mu quasi-phase-matching (QPM).Kirasiliroyo imapangidwa ndi madera osinthika omwe ali ndi ma polarizations omwe amangoyang'ana modzidzimutsa, zomwe zimathandiza QPM kukonza kusagwirizana kwa gawoli pakulumikizana kosagwirizana.Ma kristalo amatha kupangidwa kuti akhale ndi mphamvu zambiri panjira iliyonse yopanda malire mkati mwa kuwonekera kwake.

Mawonekedwe:

Kusintha kosinthika pafupipafupi mkati mwawindo lalikulu lowonekera (0.4 - 3 µm)
Kuwonongeka kwakukulu kwa kuwala kolowera kuti kukhale kolimba komanso kudalirika
Kusagwirizana kwakukulu (d33=16.9 pm/V)
Crystal kutalika mpaka 30 mm
Zobowola zazikulu zomwe zimapezeka mukafunsidwa (mpaka 4 x 4 mm2)
Zovala zosasankha za HR ndi AR kuti zigwire bwino ntchito komanso kuchita bwino
Aperiodic poling kupezeka kwa high spectral purity SPDC

Ubwino wa PPKTP

Kuchita bwino kwambiri: kupukuta kwanthawi ndi nthawi kumatha kukwanitsa kusinthika kwakukulu chifukwa chotha kupeza ma coefficient apamwamba kwambiri osagwirizana komanso kusakhalapo kwapamtunda.

Wavelength versatility: ndi PPKTP ndizotheka kukwaniritsa gawo lofananira m'chigawo chonse chowonekera cha kristalo.

Kusintha mwamakonda: PPKTP ikhoza kupangidwa kuti ikwaniritse zosowa zenizeni za pulogalamuyo.Izi zimalola kuwongolera bandwidth, kutentha kwa kutentha, ndi polarizations zotuluka.Kuphatikiza apo, imathandizira kuyanjana kosagwirizana ndi mafunde osagwirizana.

Njira Zofananira

Kutembenuka kwapawiri kwapawiri (SPDC) ndikokwera kwambiri kwa ma quantum optics, kutulutsa chithunzithunzi chomangika (ω1 + ω2) kuchokera ku chithunzi chimodzi cholowetsa (ω3 → ω1 + ω2).Ntchito zina zimaphatikizira kupanga maiko ofinyidwa, kugawa makiyi a quantum ndi kujambula kwa mizimu.

Mbadwo wachiwiri wa harmonic (SHG) umawirikiza kawiri kuwirikiza kwa kuwala kolowetsamo (ω1 + ω1 → ω2) nthawi zambiri amagwiritsidwa ntchito popanga kuwala kobiriwira kuchokera ku lasers okhazikika mozungulira 1 μm.

Sum frequency generation (SFG) imapanga kuwala ndi kuchuluka kwa ma frequency a magawo owunikira (ω1 + ω2 → ω3).Mapulogalamuwa amaphatikizapo kuzindikira kwa kutembenuka, spectroscopy, kulingalira kwa biomedical ndi sensing, ndi zina zotero.

Difference frequency generation (DFG) imapanga kuwala ndi mafupipafupi ofanana ndi kusiyana kwafupipafupi kwa magawo a kuwala kolowera (ω1 - ω2 → ω3), kupereka chida chosunthika cha ntchito zosiyanasiyana, monga optical parametric oscillators (OPO) ndi Optical parametric amplifiers (OPA).Izi zimagwiritsidwa ntchito kwambiri mu spectroscopy, sensing ndi kulumikizana.

The backward wave optical parametric oscillator (BWOPO), imakwaniritsa bwino kwambiri pogawanitsa chithunzithunzi chapampu kupita kutsogolo ndi kumbuyo kwa photon zofalitsa (ωP → ωF + ωB), zomwe zimalola kugawidwa kwamkati mkati mwa geometry yotsutsana.Izi zimalola kuti pakhale mapangidwe amphamvu komanso ophatikizika a DFG okhala ndi kusinthika kwakukulu.

Kuyitanitsa zambiri

Perekani zidziwitso zotsatirazi kuti mutenge mtengo:

Njira yomwe mukufuna: kutalika kwa kutalika kwa mawonekedwe ndi kutalika kwa mawonekedwe (ma)
Kulowetsa ndi kutulutsa polarizations
Utali wa Crystal (X: mpaka 30 mm)
Kabowo kotulukira (W x Z: mpaka 4 x 4 mm2)
AR/HR-zopakapaka

Zofotokozera:

	Min	Max
Involvedwavelength	390 nm	3400 nm
Nthawi	400 nm	-
Kukula (z)	1 mm	4 mm
Kuchuluka kwa grating (w)	1 mm	4 mm
Kuchuluka kwa kristalo (y)	1 mm	7 mm
Utali wa kristalo (x)	1 mm	30 mm