Tunable Top Notch Filter
For those seeking tunability, we offer our Tunable Top Notch Filter. Optimized for Resonant Raman Spectroscopy using Ti:Saph lasers, it can be customized to any specific wavelength range, typically 300 nm wide.
The Tunable Top Notch Filter has a high throughput (up to 80%), with a selectivity similar to that of a triple spectrograph, but at a fraction of the price. Our Tunable Top Notch Filter is a compact, easy to align instrument with an intuitive user interface that allows easy and precise control of the blocked wavelength.
This filter is perfectly matched to our Laser Line Tunable Filter for Raman applications. The Tunable Top Notch Filter's extremely narrow bandwidth rejection has a slightly larger bandwidth than our Laser Line Tunable Filter to attenuate the excitation light in Resonant Raman Spectroscopy. The same user interface is used to simultaneously control both instruments through a single USB port.
TECHNICAL SPECIFICATIONS
| Spectral Window | 633 to 1700 nm |
| Bandwidth (FWHM) | 0.4 nm @ 633 nm (< 10 cm-1) |
| Tuning Range | 300 nm @ 850 nm |
| Optical Density | 4.0 |
| Signal Out-of-Band Throughput | Up to 80% |
| Damage Threshold | > 100 kW/cm2 average power |
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> 5 GW/cm2 peak power @ 1064 nm, 8 ns |
| Aperture diameter | ≤ 5 mm |
| Dimensions (L x W x H) | 10" x 7.5" x 9.25" |
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25.4 cm x 19.1 cm x 23.5 cm |
| Operating Temperature | 10 to 40°C |
| Storage Temperature | 5 to 50°C |
| Software | PHySpec included or ActiveX drivers |
| Computer Connection | USB 2.0 (compatible 1.1) |
| Power Supply | 100 - 240 V, 50 - 60 Hz |
| Input Beam Divergence | < 1 mrad |
| Wavelength Relative Resolution | 0.05 nm (FWHM = 0.3nm) |
STANDARD PRODUCTS
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SPECTRAL RANGE |
BANDWIDTH (FWHM) |
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(nm) | (nm) |
| TTNF 850 | 715-1000 | 0.4 |
| TTNF 950 | 800-1100 | 0.4 |