Recent progress on radiation detection from near-infrared to mid-infrared based on frequency upconversion

Yi Jiang; Yujie J. Ding; Ioulia B. Zotova; Narasimha S. Prasad

doi:10.1117/12.861949

14 September 2010 Recent progress on radiation detection from near-infrared to mid-infrared based on frequency upconversion

Yi Jiang, Yujie J. Ding, Ioulia B. Zotova, Narasimha S. Prasad

Author Affiliations +

Proceedings Volume 7817, Nanophotonics and Macrophotonics for Space Environments IV; 78170B (2010) https://doi.org/10.1117/12.861949
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

We review our previous results on frequency upconversion. Frequency upconversion of laser pulses at 10.26 μm to those at 1.187 μm was measured in the presence of Nd:YAG laser pulses based on differencefrequency generation in a 10-mm-long GaSe crystal. The highest power conversion efficiency for the parametric conversion was determined to be 20.9%, corresponding to the photon conversion efficiency of 2.42%. This value is two orders of magnitude higher than the highest value reported on GaSe in the literature. The saturation of the output power at 1.187 μm as the input power at 10.26 μm was increased, due to the back conversion, i.e. 1.187 μm + 10.26 μm → 1.064 μm, was clearly evidenced. Besides the midinfrared region, we have also investigated frequency upconversion of the input signals at 1.27 μm and 1.57 μm in the presence of the pump beam at 1.064 μm in bulk periodically-poled LiNbO₃ (PPLN) crystals. The quantum efficiencies of 11.2% and 13.2% have been achieved at these two input wavelengths. The detections of low-level photons at these two wavelengths are important to the NASA Active Sensing of CO₂ Emissions over Nights, Days, and Seasons (ASCENDS) mission.

Citation Download Citation

Yi Jiang, Yujie J. Ding, Ioulia B. Zotova, and Narasimha S. Prasad "Recent progress on radiation detection from near-infrared to mid-infrared based on frequency upconversion", Proc. SPIE 7817, Nanophotonics and Macrophotonics for Space Environments IV, 78170B (14 September 2010); https://doi.org/10.1117/12.861949

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