Luminosa PDA-23 Add-On
Brand: PicoQuant | Category: Nanotechnology
The PDA-23 add-on equips the Luminosa confocal microscope with a cooled 23-pixel SPAD array for confocal time-resolved detection, combining the higher resolution of image scanning microscopy with quantitative FLIM. Pixel reassignment raises resolution by about 30%, taking 485 nm excitation down to 155 nm FWHM, and deconvolution takes that further to 120 nm FWHM. Computational sectioning improves contrast by rejecting out of focus light, and every pixel of the array is time tagged, with dual-channel acquisition available simultaneously through pulsed interleaved excitation. Integrated in Luminosa, the detector keeps alignment stable and pairs with the MultiHarp 160 multichannel time tagging and TCSPC unit, with analysis handled in NovaISM.
Selected manufacturer specifications
| Parameter | Value |
|---|---|
| Detector architecture | 23 independent SPAD pixels |
| Active area | 100 × 110 µm |
| Effective fill factor with microlenses | Greater than 75%; typically 80% |
| Usable spectral window | 400–950 nm |
| Typical peak photon detection efficiency | 55% at 520 nm |
| Timing jitter | Less than 120 ps FWHM at 510–785 nm |
| Listed cooled operating temperature | 10°C |
PDA-23 section of the Luminosa datasheet, January 2026, page 3. Typical detection efficiency is wavelength-dependent; detector jitter must not be confused with TCSPC bin width. Confirm host-system compatibility. Checked 2026-09-29.
Manufacturer reference document (opens in a new tab)
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