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400~2300nm光學(xué)可調(diào)諧濾波器

LLTF系列 Tunable Filter是一款非色散的亞納米帶寬可調(diào)諧光學(xué)濾波器。值得一提的是，因?yàn)椴捎玫膿碛械捏w光柵技術(shù)，這款可調(diào)諧光學(xué)濾波器具有驚人的60%的非偏振透過率，這是FTS, Fabry-Perot, 聲光（AOTF），液晶（LCTF）等方法所無法企及的。波長調(diào)諧通過電腦程序控制，省去了重新調(diào)整光路帶來的不便。此外，由于TNF系列超窄帶寬Notch Filter中的filter是由全玻璃材料制成，所以和傳統(tǒng)的Notch Filter比較，它具有更高的損傷閾值及工作壽命。

400~2300nm光學(xué)可調(diào)諧濾波器

Illustration of the out-of-band rejection of a volume holographic grating at λc= 632 nm. Bands of ±45 nm are presented and an out-of-band rejection of -60 dB is obtained.

Output from Photon etc’s tunable laser source. Visible option covering 400 - 1000 nm and SWIR option covering 1000 - 2500 nm.

典型應(yīng)用：

•Photoluminescence (PL)

•Photoluminescence excitation (PLE)

•Reflection/Transmission Spectroscopy

•Hyperspectral imaging

•Photovoltaic (EQE Mapping)

•Photochemistry

•LBIC (Light Beam Induced Current)

•Steady State Pump-Probe experiment

•Fluorescence spectroscopy

•Detector calibration

•Photobiology

•Solar Simulators

技術(shù)指標(biāo)：

Source Type	Spectral range (nm)	FWHM(nm)
Dye Laser	540 - 800	<0.3
Ti:Saphire Laser	715 - 1000	<0.3
Ti:Saphire Laser	800 - 1100	<0.4
High Power Supercontinuum source (up to 8 W)	400 - 1000	<0.4
High Power Supercontinuum source (up to 8 W)	1000 - 2300	<2
Medium power Supercontinuum source (up to 50 mW)	400 - 1000	<0.4
Medium power Supercontinuum source (up to 50 mW)	1000 - 2300	<2

Custom possibilities
Available spectral window	400 - 2300 nm
Available bandwidths (FWHM)	From 0.3 nm to 3 nm depending on wavelength
Tuning range	From 260 nm to 1300 nm
Pointing stability	< 1 mm lateral displacement (for 1.3 μm spectral range)
Peak transmission	Up to 60%
Wavelength relative resolution	0.05 nm (for FWHM = 0.3 nm)
Damage threshold	> 100 kW/cm2 average power > 5 GW/cm2 peak power @ 1064 nm, 8 ns
Aperture diameter	≤ 5 mm
Out of band rejection (with a fiber output)	< -60 dB @ ± 40 nm (VIS), < -60 dB @ ± 80 nm (SWIR)
Wavelength relative resolution:	FWHM/8
Operating temperature	10 to 40°C
Software	included
Computer connection	USB 2.0 (compatible 1.1)
Power supply	100 - 240 V , 50 - 60 Hz

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400~2300nm光學(xué)可調(diào)諧濾波器

400~2300nm光學(xué)可調(diào)諧濾波器

400~2300nm光學(xué)可調(diào)諧濾波器

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