ATTO 643
ATTO 643 has an excitation maximum at 643 nm and an emission maximum at 665 nm, a Stokes shift of 22 nm. Its extinction coefficient is 150000 M⁻¹cm⁻¹. It is optimally excited by the 633, 650 laser line.
Excitation & emission spectra
Key facts
- Excitation maximum
- 643 nm
- Emission maximum
- 665 nm
- Optimal laser line
- 633, 650
- Relative brightness
- 4 of 5
- Extinction coefficient
- 150000
- Quantum yield
- .62
- Fluorescence lifetime
- 3.5 ns
ATTO 643 has an excitation maximum at 643 nm and an emission maximum at 665 nm, a Stokes shift of 22 nm. Its extinction coefficient is 150000 M⁻¹cm⁻¹. It is optimally excited by the 633, 650 laser line.
Frequently asked questions
- What laser excites ATTO 643?
- ATTO 643 is optimally excited by the 633, 650 laser line. Its excitation maximum is 643 nm.
- How bright is ATTO 643?
- ATTO 643 has a relative brightness of 4 out of 5 (quantum yield .62).