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https://hdl.handle.net/10356/106945
Title: | Pulse propagation in hollow-core fiber at high-pressure regime : application to compression of tens of μJ pulses and determination of nonlinear refractive index of xenon at 103 μm | Authors: | Lo, Alencious Shu-Zee Wang, Lin Loh, Zhi-Heng |
Keywords: | Ultrafast Nonlinear Optics Ultrafast Optics Science::Physics |
Issue Date: | 2018 | Source: | Lo, A. S.-Z., Wang, L., & Loh, Z.-H. (2018). Pulse propagation in hollow-core fiber at high-pressure regime: application to compression of tens of μJ pulses and determination of nonlinear refractive index of xenon at 103 μm. Applied Optics, 57(16), 4659-4664. doi:10.1364/AO.57.004659 | Series/Report no.: | Applied Optics | Abstract: | Classical expression for the propagation constant and absorption coefficient derived by Marcatili and Schmeltzer for hollow-core fiber (HCF) has been slightly modified to account for noble gas material dispersion at high gas pressure. As a proof of concept, the nonlinear refractive index of xenon (Xe) gas has been investigated by numerically fitting to experimentally obtained spectral broadening in HCF under intense high repetition rate pulses. By varying the Xe pressure inside the HCF, a pressure-dependent nonlinear refractive index value of 𝜅�����2=(50.1±0.3)×10−20 cm2/W atm at 1.03 μm is obtained, which compares favorably with literature reported values. Finally, temporal compression of 50 μJ, 320 fs pulses at 0.6 MHz repetition rate to 61 fs with 0.29 GW peak power in a HCF filled with 5 bars of Xe gas has been demonstrated using a single HCF compression stage. | URI: | https://hdl.handle.net/10356/106945 http://hdl.handle.net/10220/50045 |
ISSN: | 1559-128X | DOI: | 10.1364/AO.57.004659 | Rights: | © 2018 Optical Society of America. All rights reserved. This paper was published in Applied Optics and is made available with permission of Optical Society of America. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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Pulse propagation in hollow core fiber at high pressure regime-application to compression of tens .pdf | 2.11 MB | Adobe PDF | ![]() View/Open |
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