Chromatic second harmonic imaging
Year: 2010
Type: article
Abstract: We report a non-axial-scanning second harmonic imaging technique, in which the chromatic aberration of a Fresnel lens is exploited to focus different wavelengths of a fundamental beam into different axial positions to effectively realize axial scanning. Since the second harmonic signals at different axial positions are generated by different fundamental wavelengths and hence accordingly have different center wavelengths, they can be resolved and detected in parallel by using a spectrometer without axial mechanical scanning. We have demonstrated a system capable of achieving about 8 μm effective axial scanning range. Proof-of-concept imaging results are also presented.
Source: Optics Express
DOI: 10.1364/oe.18.023837
Authors: Chuan Yang, Kebin Shi, Haifeng Li, Qian Xu, Venkatraman Gopalan, Zhiwen Liu
Institution: Pennsylvania State University
Language: English
Subfield: Biophysics
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W2085592692