Multi-Spectral Detectors

PML-Spec, PML-Spec GaAsP, MW-FLIM, MW-FLIM GaAsP
  • Simultaneous Recording in 16 Wavelength Channels
  • PML-Spec - Single-Point Recording of Decay Curves in 16 Wavelength Intervals
  • MW-FLIM - Simultaneous Recording of 16 FLIM Images in 16 Wavelength Intervals
  • Time Resolution (IRF width) 180 ps FWHM
  • Count Rate Up to 4 MHz
  • Power Supply and Control via DCC-100 or DCU-400 Module
  • Direct Interfacing to all bh TCSPC Systems
  • Super Bialkali, Multialkali, GaAsP Versions Available

The PML-SPEC and MW-FLIM multispectral detectors use PML-16  16-channel detectors in combination with a small spectrograph. The spectrograph projects a spectum of the light signal on the detector, and the signals arriving at the PMT channels are recorded in separate memory blocks of the TCSPC module. The recording principle is described under Multi-Channel Detectors.

The optical principle of the PML-SPEC and MW-FLIM detectors is shown in the figure below, left and right. The devices differ in the way the light is deliverd into the spectrograph. The PML-SPEC uses a single fibre, the MW-FLIM a fibre bundle. The bundle collects light from a circular area about 3mm across, and converts it into as narrow slit at the output. This way, the MW-FLIM detector can be used at the non-descanned ouput of a multiphoton microscope.

 

 

MW-FLIM & PML-Spec

Optical System

Spectrograph

LOT MS125

Grating Part No.

77417

77414 (Standard)

77411

Primary Wavelength Region Adjustable by Set Screw

340 - 820

Type of Grating / lines/mm

400

600

1200

Width of Recorded Wavelength Interval, Channel 1 to16

300

200

100

Wavelength Channel Width / nm

18.75

12.50

6.25

Detector

PML-16-C

Cathode Type

-100 (Super Bialkali)

-1 (Multialkali)

-GASP (GaAsP)

Wavelength Range / nm 1)

300 - 650

300 - 880

360 - 720

Detector Quantum Efficiency 1)

35 % @ 350 nm

20 % @ 420 nm

45 % @ 540 nm

 

Spectral sensitivity: click here

Transit Time Spread (TCSPC IRF / FWHM, Typ. Value)

180 ps

240 ps

280 ps

Count Rate

up to 4 MHz

Number of Channel

16

Arrangement

Linear (1 by 16), Opt. Quadratic (4 x 4)

Active Area (Each Channel)

 

Linear (0.8 x 16) mm, Quadratic (4 by 4) mm

 

Linear (0.8 x 5.0) mm

Channel Pitch

1 mm

Signal Output

 

Timing Output Polarity

negative

Timing Output Connector

SMA

Timing Output Impedance

50 Ω

Routing Signal

4 bit + Error Signal, TTL/CMOS

Routing Signal Connector

15 pin Sub-D / HD

Power Supply

(from DCC-100 Card)

±5 V , +12 V

General

Dimensions (Width x Height x Depth)

(52 x 52 x 145) mm

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