E se nang Polarizing
Plate Beamsplitters
Hangata li-beamsplitters li aroloa ho latela kaho ea tsona: cube kapa poleiti. Plate beamsplitter ke mofuta o tloaelehileng oa beamsplitter o entsoeng ka substrate e tšesaane ea khalase e nang le optical coating e ntlafalitsoeng bakeng sa angle ea 45 ° ea ketsahalo (AOI). Li-plate beamsplitters tse tloaelehileng li arola leseli la ketsahalo ka karo-karolelano e ikhethileng e ikemetseng ho bolelele ba maqhubu a leseli kapa boemo ba polarization, athe polarizing plate beamsplitters e etselitsoe ho tšoara linaha tsa S le P ka tsela e fapaneng.
Melemo ea "plate beamsplitter" ha e na chromatic aberration, ho monya hanyane ka lebaka la likhalase tse nyane, meralo e nyane le e bobebe ha e bapisoa le cube beamsplitter. Mefokolo ea poleiti ea beamsplitter ke litšoantšo tsa moea tse hlahisoang ka ho ba le leseli le hlahang mahlakoreng ka bobeli a khalase, ho falla ka mahlakoreng a marang-rang ka lebaka la botenya ba khalase, bothata ba ho nyoloha ntle le deformation, le kutloisiso ea bona ho leseli la polarized.
Li-plate beamsplitters tsa rona li na le bokaholimo bo koahetsoeng ka pele bo khethollang karo-karolelano ea sekhahla ha bokaholimo bo ka morao bo koetsoe 'me AR e koahetsoe. The Wedged Beamsplitter Plate e etselitsoe ho etsa likopi tse ngata tse fokotsehileng tsa phala e le 'ngoe ea ho kenya.
Ho thusa ho fokotsa litlamorao tse sa batleheng tsa tšitiso (mohlala, litšoantšo tsa sepoko) tse bakoang ke ho kopana ha leseli le hlahang ka pele le ka morao ea optic, lipolanete tsena kaofela li na le lera la antireflection (AR) le kentsoeng ka morao. Ho roala hona ho etselitsoe bolelele bo ts'oanang ba ho sebetsa joalo ka ha ho roala beamsplitter ka pele. Hoo e ka bang 4% ea ketsahalo e khanyang ho 45 ° holim'a substrate e sa koahetsoeng e tla bonahala; ka ho sebelisa lesela la AR lehlakoreng le ka morao la beamsplitter, peresente ena e fokotsehile ho ea ho karolelano e ka tlaase ho 0.5% ho bolelele ba maqhubu a ho roala. Ntle le karolo ena, bokaholimo ba li-beamsplitters tsa rona tse chitja bo na le 30 arcmin wedge, ka hona, karoloana ea leseli e hlahang sebakeng sena se koahetsoeng ke AR e tla fapana.
Paralight Optics e fana ka li-plate beamsplitters tse fumanehang ka bobeli le mefuta e seng ea polarizing. Li-beamsplitters tse tloaelehileng tse se nang polarizing li arola leseli la ketsahalo ka karo-karolelano e ikhethileng e ikemetseng ho bolelele ba maqhubu a khanya kapa boemo ba polarization, athe polarizing plate beamsplitters e etselitsoe ho tšoara linaha tsa S le P ka tsela e fapaneng.
Letlapa la rona le se nang polarizingbeamsplittersli entsoe ke N-BK7, Fused Silica, Calcium Fluoride le Zinc Selenide tse koahelang mahlaseli a UV ho ea ho MIR. Re boetse re fana kali-beamsplitters tse sebelisoang le Nd: YAG wavelengths (1064 nm le 532 nm). Bakeng sa tlhaiso-leseling e batsi mabapi le lirafshoa tsa li-beamsplitters tse se nang polarizing ka N-BK7, ka kopo sheba li-graph tse latelang ho tsoa litšupisong tsa hau.
Likaroloana:
Lisebelisoa tsa Substrate:
N-BK7, RoHS e lumellana
Likhetho tsa ho Koahela:
Liaparo tsohle tsa Dielectric
Ts'ebetso ea Optical:
Arohane karo-karolelano ho Polarization ea Ketsahalo ea Ketsahalo
Likhetho tsa Moralo:
Moralo o Tloaelehileng oa Fumaneha
Litlhaloso Tse Tloaelehileng:
Reference Drawing bakeng sa
Non-Polarizing Plate Beamsplitter
Li-plate beamsplitters li na le poleiti e tšesaane, e sephara ea khalase e koahetsoeng ka holim'a karolo ea pele ea substrate. Boholo ba li-plate beamsplitters li na le seaparo se khahlanong le ho bonahatsa sebakeng sa bobeli ho tlosa litšoantšo tse sa batleheng tsa Fresnel. Li-plate beamsplitters hangata li etselitsoe 45° AOI. Bakeng sa li-substrates tse nang le index ea 1.5 ea refraction le 45° AOI, sebaka sa "beam shift" (d) se ka hakanyetsoa ho sebelisoa equation setšoantšong se ka ho le letšehali.
Mekhahlelo
Ranges & Tolerances
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Mofuta
Non-polarizing poleiti beamsplitter
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Mamello ea Dimension
+0.00/-0.20 limilimithara
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Botenya Mamello
+/-0.20 limilimithara
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Boleng ba Bokaholimo (Scratch-Dig)
E tloaelehileng: 60-40 | Ho nepahala: 40-20
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Bophahamo ba Bokaholimo (Lehlakore la Plano)
< λ/4 @632.8 nm ka 25mm
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Ho bapisa
<1 arcmin
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Chamfer
Sireletsoa<0.5mm X 45°
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Ho mamellana karohano (R/T)
±5%, T=(Ts+Tp)/2, R=(Rs+Rp)/2
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Aperture e Hlakileng
90%
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Ho roala (AOI=45°)
Ho roala ha 'mele ka mokhoa o itseng sebakeng sa pele (ka pele), ho roala ha AR sebakeng sa bobeli (ka morao).
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Tšenyo Moetla
> 5 J/cm2, 20ns, 20Hz, @1064nm
Kerafo
Bakeng sa tlhaiso-leseling e batsi ka mefuta e meng ea li-plate beamsplitters joalo ka li-wedged plate beamsplitters (5° wedge angle to separate multiple reflections), dichroic plate beamsplitters (e bonts'ang thepa ea beamsplitting e itšetlehileng ka bolelele ba maqhubu, ho akarelletsa le longpass, shortpass, multi-band, joalo-joalo). polarizing plate beamsplitters, pellicle (ntle le chromatic aberration & ghost images, ho fana ka thepa e ntle ea phetisetso ea wavefront le ho ba molemo ka ho fetisisa bakeng sa lits'ebetso tsa interferometric) kapa polka dot beamsplitters (ts'ebetso ea bona ha e itšetlehe ka mahlakoreng) ka bobeli ba ka koahela mefuta e mengata ea wavelength, ka kopo ikopanye. rona bakeng sa lintlha.
50:50 Non-Polarizing Plate Beamsplitter @450-650nm ho 45° AOI
50:50 Non-Polarizing Plate Beamsplitter @650-900nm ho 45° AOI
