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400~2300nm光学可调谐滤波器
LLTF系列 Tunable Filter是一款非色散的亚纳米带宽可调谐光学滤波器。值得一提的是,因为采用的拥有的体光栅技术,这款可调谐光学滤波器具有惊人的60%的非偏振透过率,这是FTS, Fabry-Perot, 声光(AOTF),液晶(LCTF)等方法所无法企及的。波长调谐通过电脑程序控制,省去了重新调整光路带来的不便。此外,由于TNF系列超窄带宽Notch Filter中的filter是由全玻璃材料制成,所以和传统的Notch Filter比较,它具有更高的损伤阈值及工作寿命。
400~2300nm光学可调谐滤波器
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.
典型应用:
•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
技术指标:
Source Type |
Spectral range (nm) |
FWHM(nm) |
Dye Laser |
540 - 800 |
<0.3 |
Ti:Saphire Laser |
715 - 1000 |
<0.3 |
800 - 1100 |
<0.4 |
|
High Power Supercontinuum source (up to 8 W) |
400 - 1000 |
<0.4 |
1000 - 2300 |
<2 |
|
Medium power Supercontinuum source (up to 50 mW) |
400 - 1000 |
<0.4 |
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 |