785nm Lasers for Raman Spectroscopy: Why 785 Is the Standard
Why 785nm is the default Raman excitation wavelength — balancing signal strength against fluorescence background — and what to specify when buying a Raman laser.
633nm Diode Laser: The Modern HeNe Replacement
Why 633nm diode lasers are replacing helium-neon lasers — more power, faster warm-up, direct modulation, and a smaller footprint. Plus the one spec to check first.
What Laser Do I Need for Optogenetics?
Matching laser wavelength, power, and modulation to your opsin — a practical guide to choosing the right light source for optogenetics experiments.
Laser Wavelengths for Fluorescence Microscopy
Which laser wavelength for GFP, mCherry, DAPI, and more? A complete reference matching excitation wavelengths to fluorophores for fluorescence microscopy.
How to Choose a Laser for Flow Cytometry
A practical guide to selecting flow cytometry lasers — which wavelengths for which fluorophores, what power you need, and why RMS noise matters for tight CVs.
Diode Laser vs. DPSS Laser: How to Choose
Diode lasers vs. DPSS lasers — beam quality, modulation speed, noise, size, and cost compared. A practical guide to choosing the right laser for your application.