Figure 3
From: Amplified spontaneous emission and gain in highly concentrated Rhodamine-doped peptide derivative
(a) Absorbance spectra—Rhodamine B (blue line) and Rho-peptide (orange line). The dyes are dissolved in HFIP with a molar concentration of 10−5 M. (b) Absorbance spectra of Rho-PEG1300-F6 in HFIP, HFIP/H2O (20/80) and in HFIP/PBS (20/80) at pH 7.4. Spectra are recorded between 350 and 650 nm.
