The graph shows the SERS spectra of 10-6 M to 10-9 M Rhodamine 6G on the Premium-Silver substrate.
Laser wavelength: 785 nm
Laser power: 100-300 mW
Integration time: 3 – 10 seconds, Average: 5
Raman Spectrometer: EZ Raman from Enwave Optronics, USA
Lens magnification: 0.3 NA
Detector: The detector is a thermoelectric controlled 2D CCD array detector with a pixel resolution 1.45 cm^(-1) per pixel.
Results sent by Pabitra Nath and Sritam Biswas from the Department of Physics, Tezpur University, India