Fluorescence Spectroscopy

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TDM - The Time-Domain Monochromator

Overview

The TDM monochromator features low temporal dispersion and high optical throughput, both of which are key requirements of time-domain spectroscopy.

A versatile building block that can easily be incorporated into any optical system, its features include:

  • Full automation of wavelength, exit and entrance slits, and shutter
  • Choice of control interface: USB, or F-link for plug-n-play integration with DeltaFlex components
  • Integral shutter saves space and components in your optical path
  • (shutter may be controlled in software and/or electronically from your own interlock circuit e.g. to protect sensitive detectors)
  • Rugged, compact construction
  • Low time dispersion and high throughput

This unique range of features makes the TDM monochromator an ideal choice for applications requiring compact wavelength selection.  Three models cover the spectral range from 200nm to 1600nm: TDM-800 (200-800nm), TDM-1200 (300-1200nm) and TDM-1600 (400-1600nm).  

The TDM monochromator is a core component of our DeltaFlex range of fluorescence lifetime systems and is therefore readily available with a host of adapters and accessories such as our PPD detectors and diode light sources.


Manufactured by HORIBA

Specifications

Model

TDM-800

TDM-1200

TDM-1600

Focal length

100mm

Geometry

Seya-Namioka with horizontal slit (vertical dispersion)

Linear dispersion

8nm/mm

12nm/mm

16nm/mm

Numerical aperture

f/3

Spectral bandwidths

(motorized)

1, 2, 4, 6, 8, 12,

16 & 32nm

1.5, 3, 6, 9, 12, 18, 24 & 48nm

2, 4, 8, 12, 16, 24, 32 & 64nm

Spectral range
(motorized)

200-800nm

300-1200nm

400-1600nm

Typical Peak transmission

62%@280nm

43%@490nm

33%@600nm

Integrated shutter

Yes

Yes

Yes

Wavelength precision

±1nm

±1.5nm

±2nm

Grating

Aberration corrected concave holographic

Slit height

8mm

Stray light rejection

10e-5

Temporal dispersion

0.13ps/nm

Control interface

USB or F-link (please specify)

Power requirements

15V at 0.75A d.c.

Dimensions

171mm x 145mm x 111mm

Weight

3.9kg