Mesophotonics - Klarite SERS Peformance


		Klarite SERS Performance Reproducibility - no hot spots Glucose Histamine Urea Phenylalanine L-Alanine Benzenethiol Rhoadamine 6G dye Reproducibility - no hot spots Reproducibility data from 567 spectra taken at 10um intervals over a 200um x 260um area on Klarite SERS substrate. Magnitude of the 1072cm-1 Raman peak is shown. Average signal level 30,000 counts. Relative standard deviation observed <7%. Spectra recorded on Renishaw’s inVia Reflex Raman microscope with 785nm excitation, 10mW laser power, 1sec exposure, 50x magnification, confocal configuration. Sample Benzenethiol monolayer Glucose Spectra recorded on Renishaw’s inVia Reflex Raman microscope with 785nm excitation, 10mW laser power, 10sec exposure time. No background subtraction has been applied. Preliminary Klarite SERS spectrum of 0.1 Molar Glucose solution. Histamine Spectra recorded on Renishaw’s inVia Reflex Raman microscope with 785nm excitation, 10mW laser power, 10sec exposure time. No background subtraction has been applied Typical Klarite SERS spectrum of 0.075 Molar partially crystalline Histamine. Urea Spectra recorded on Renishaw’s inVia Reflex Raman microscope with 785nm excitation, 10mW laser power, 10sec exposure time. No background subtraction has been applied. Typical Klarite SERS spectrum of 2.3x10-4 Molar Urea solution dehydrated to form non-crystalline thin film. Phenylalanine Spectra recorded on Renishaw’s inVia Reflex Raman microscope with 785nm excitation, 10mW laser power, 10sec exposure time. No background subtraction has been applied. Preliminary Klarite SERS spectrum of 0.01 Molar Phenylalanine at different points of crystallisation on dehydrated sample. L-Alanine Spectra recorded on Horiba Jobin Yvon's LabRAM ARAMIS Raman system with 785nm excitation, 15mW laser power, 10 sec exposure time. No background subtraction has been applied. Sample: 0,5 millimolar L-Alanine diluted with purified water. Benzenethiol Typical surface enhanced Raman spectrum obtained with a Benzenethiol sample on a Klarite substrate. Sample- Benzenethiol, laser power at 633 and 785nm <5mW, integration time 10 seconds, Raman systems Renishaw RM1000 and Renishaw RM2000 Rhoadamine 6G dye Spectra recorded on Horiba Jobin Yvon's LabRAM ARAMIS Raman system with 532nm excitation, 0.26mW laser power, 10 sec exposure time. Sample: 1 micromolar concentration Rhoadamine 6G dye in de-ionised water solution.