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State Government

CTN :41535673 Due date: 09 Sep, 202509 Sep, 2025 NA
Tender For e- tenders are invited on behalf of the director, national institute of science education and research, jatni from the manufacturers(indian or foreign) or their authorised reseller/indian agent only for supply & installation of the following item--, unmounted linear polarizer, , description of item -, , wavelength range: 600-1100 nm, , extinction ratio bands: >1000:1 for 695-1100, , nm, , parallelism: <0.5 arcmin, , diameter: 25.4 mm (ø1"), , n-bk7 broadband precision window, , description of item -, , size: 25.4 mm (ø1"), , size tolerance: +0.0/-0.2 mm, , thickness: 1.0 mm, , thickness tolerance: ±0.1 mm, , clear aperture: >90% of diameter, , surface quality: 20-10 scratch dig, , ar coating range: 650-1050 nm, , parallelism: ≤1 arcmin, , reflectance over ar coating range: ravg< 0.5%, , damage threshold: 7.5 j/cm^2 at 810 nm, 10 ns, 10 hz, ø0.144 mm, , n-bk7 broadband precision window, , description of item -, , size: 50.8 mm (ø2"), , size tolerance: +0.0/-0.2 mm, , thickness: 12.0 mm, , thickness tolerance: ±0.3 mm, , clear aperture: 2045.72 mm, , surface flatness: ≤2/10 over ca, , surface quality: 20-10 scratch dig, , ar coating range: 650-1050 nm, , parallelism: ≤5 arcsec, , reflectance over ar coating range: ravg< 0.5%, , damage threshold: 7.5 j/cm^2 at 810 nm, 10 ns, 10 hz, 00.144 mm, , mid-infrared enhanced gold mirror, , description of item:-, , diameter: 7.0 mm, , diameter tolerance: +0.0 mm/-0.1 mm, , thickness: 2.0 mm (0.08"), , thickness tolerance: ±0.2 mm, , reflectance: rang> 98%, rats 95% from 2 µm to, , clear aperture: >06.3 mm, , 20 µm @ 0° to 45° αοι, , front surface flatness (peak to valley): <2/10 @ 633 nm, , substrate: fused silica, , surface quality: 40-20 scratch-dig, , parallelism:<3 arcmin, , 0.1 j/cm2 at 1.064 µm, 10 ns, 10 hz, ø1.06 mm 3 j/cm2 at 10.6 µm, 100 ns, 1 hz, ø1.29 mm, , damage threshold (pulsed):, , low-gdd ultrafast mirror, , description of item: -, , design wavelength range: 700-930 nm, , diameter: 38.1mm (ø1.5"), , diameter tolerance: +0.00/-0.10 mm, , clear aperture: >80% of diameter, , thickness: 12.0mm, , reflectance: r> 99% (700-930 nm); r> 99%, , thickness tolerance: ±0.20 mm, , (730-870 nm), , group delay dispersion:, , gdd < 30 fs² (700-930 nm), , angle of incidence: 45°, , gdd < 30 fs² (730-870 nm), , substrate: fused silica, , front surface flatness: 2/4, , front surface quality: 15-5 scratch-dig, , parallelism: ≤3 arcmin, , back surface: polished, , kinematic rotation mount, , description of item:-, , for mounting ø1" optics, , three 1/4"-80 lockable stainless-steel adjusters with removable knobs and brass bushings for, , smooth adjustments, , six #8 (m4) counterbored mounting holes al-, , low left-handed or right-handed orientations sm1-threaded (1.035-40) rotation ring with locking screw

CTN :41395671 Due date: 01 Sep, 202501 Sep, 2025 NA
Tender For supply of infrared long pass filter 1050nm , infrared long pass filter 2400nm , infrared long pass filter 3600nm , infrared long pass filter 4500nm , infrared long pass filter 7300nm , infrared long pass filter 6000nm , zinc selenide wedged window , protective window znse substrate , protective window
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