NanoSecond-TAS

NS-TAS Nanosecond Transient Absorption Spectrometer System
Features:
• Complete and Fully automated system for transient absorption measurements in nanosecond , microsecond and millisecond time domain
• Reliably and accurately measure transient absorption
• Broad Spectral range UV-NIR
• Adjustable spectral resolution
Includes:
• All optics and mechanics for transient absorption measurement sin UV-VIS and NIR spectral ranges
• Integrated compact short-pulse laser with built-in second, third,and fourth harmonic .for sample excitation
• pulsed, high-intensity 450W Xenon lamp
• Sample chamber with excitation and probe light delivery optics
• Sample holder for standard liquid sample cells , solid samples and thin films
Optical :
• Spectral range: 200 – 850nm
• Sensitivity 0.002RMS (single shot) ,
• Monochromator type: Czerny-Turner with Triple Grating Turret
• Focal length: 200mm
• Slits 0.1nm to 4 mm (continuously adjustable),
• Gratings: Plane, ruled grating 1800 grooves, 500nm blaze 1.8nm/mm
• Spectral resolution: 0.1nm (depending on grating and slit)
• Options A variety of gratings with 150-2400 grooves/mm,1ptimized from UV to NIR
• Detector type: Photomultiplier with 5 stage dynode chain for high current linearity, <3ns rise time,
• Size and Weight,
Laser head: 363 x 364 x 192mm (15.5kg)
Power supply 363 x 364 x 280 (12.5kg)
Cooling system
Remote control 105 x 175 (0.5kg)
• Power requirements: Single phase, 220 V,50–60 Hz, 750W
VIS-NIR Excitation Extension Option
for NS-TAS Nanosecond Transient Absorption Spectrometer (item1)
Includes:
• BBO-OPO optical parametric oscillator pumped by 355nm third harmonic output from the nanosecond laser (in item 1)
Features:
• Reliable and efficient operation.
• Computer control
• One set of cavity mirrors for total tuning range.
• Compensation beam displacement during tuning.
• Protection of optical crystal from humidity by heating.
Specifications:
• Tuning range
410–690 nm ( signal wave )
715–2300 (idler wave)
• Typical linewidth ≤0.5 nm
• Beam divergence, 5 mrad
• Phasematching : Type I
• Pump radiation conversion efficiency at signalmaximum of tuning curve (at 10 Hz), ≤25%
• Pulse duration (FWHM), 5-6 ns
• Polarization at signal and idler Linear, horizontal
• Size L x W x H, mm (Weight, kg) 380 x 176 x 78 (6.5)
Near–Infrared Detection Extension Option
for NS-TAS Nanosecond Transient Absorption Spectrometer (item1)
Includes:
• InGaAs detector NIR detector for lifetime measurements with 1.65μm cut-off. Detector assembly includes 2 stage TE cooled InGaAs photodiode and lens focusing optics.
Specifications:
• spectral range: 900nm-1650nm
• cut-off frequency 2MHz (50Ω input impedance)
• detector response width: 100ns (50Ωinput impedance)
Multichannel UV-VIS Camera Detector extension option
for NS-TAS Nanosecond transient absorption spectrometer (item 1)
Includes:
Andor IStar 320T Gated intensified (ICCD) camera
Features:
• USB 2.0 connectivity - Industry-standard plug-and-play, rugged
interface
• TE-cooling to -40ºC - Efficient minimization of CCD dark
current and pixel blemishes.
• Specifications:
• Spectral range: 200 – 850nm
• Minimum Gating Time 3 ns |