JASCO｜Circularly Polarized Luminescence (CPL) Spectrophotometer

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JASCO｜Circularly Polarized Luminescence (CPL) Spectrophotometer

Materials that exhibit circularly polarized luminescence are being actively investigated in applications such as liquid crystal display backlights, 3D displays, holographic displays, light sources for controlling plant growth, and security systems for optical communications and printing. It is therefore important to identify molecules that emit one-handed circularly polarized light with high quantum yield. CPL spectra contain important information such as the stable structure of excited molecules, and the behavior of these molecules in chemical reactions that involve an intermediate excited state. The CPL-300 offers high sensitivity for detection of these weak signals over a wide spectral range. The instrument’s unique double-prism excitation and emission monochromators offer very low stray-light and no spurious linear polarization effects caused by instruments that use diffraction gratings.

Model : CPL-300

Q'ty :

Description
Specifications

Feature :

Double-prism monochromator - Low stray light, no second-order radiation and no Wood’s anomalies.
180° sample geometry with unpolarized excitation light - Samples with different transition moments for absorption and fluorescence, that do not become depolarized, can be measured
Excitation (Ex) and emission (Em) monochromators - Selectable Ex wavelength and Em spectral bandwidth
High-throughput optical system and highly sensitive PMT- Increased fluorescence sensitivity.
Data collection and processing- Simultaneous measurements of CPL and fluorescence intensity, one-click data conversion to ΔI and g_lum

Model	CPL-300
Light source	150 W Ozone-free air-cooled Xe lamp (Option:150 W air-cooled HgXe lamp)
Detector	Head-on photomultiplier tube PMT
Modulator	Piezoelastic modulator
Electronic system	Rock-in amplifier
Monochromator	Double prisms monochromators for both Ex (excitation) and Em (emission) parts
Measurement wavelength range	250 to 850 nm 400 to 1100 nm (optional PMT detector)
Wavelength accuracy	± 0.2 nm (250-500 nm) ± 0.5 nm (500-800 nm) ± 1.5 nm (800-1100 nm)
Wavelength reproducibility	± 0.05 nm (250-500 nm) ± 0.1 nm (500-800 nm) ± 0.5 nm (800-1100 nm)
Slit width	1 to 4000 µm
Digital Integration Time (D.I.T.)	0.1 msec to 30 sec
Scanning mode	Continuous scan, Step scan, Auto response (D.I.T) scan
Photometric Mode	CD (AC comportment = CPL), DC (DC comportment = Fluorescence), HT (High tension voltage of PMT), and AC/DC
CPL resolution	0.00001 mdeg
Wavelength resolution	0.025 nm
Stray light	0.001% or less
External input terminal	Two channels (input range: -1 to 1 V DC)
Mercury lamp	Used for the instrument inspection
Shutter	Located on the Ex and Em monochromators
Sample chamber	150 mm wide x 310 mm deep x 165 mm high Exists the water inlet/outlet ports
Dimensions	2000 mm wide x 700 mm deep x 1000 mm high
Weight	180 kg
Power requirements	100, 115, 200, 220, 230, 240 V, 50/60 Hz, 430 VA
Program package	Spectra Manager Ver.2

JASCO｜Circularly Polarized Luminescence (CPL) Spectrophotometer

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