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Author details

Feng Li

Publications

11

Citations

210

Publications by Year

20172023

Co-Authors:

Huihui BaiRunmin CongLingzhi HeAnqi LiKang Liao

Show All Co-Authors (19)

Feng Li

Affiliation

Hefei University of Technology, Hefei, China

Publication Topics

Convolutional Layers,
Peak Signal-to-noise Ratio,
Attention Mechanism,
Generative Adversarial Networks,
High-level Features,
High-resolution Images,
Low-resolution Images,
Progressive Learning,
Real-world Applications,
Receptive Field,
Super-resolution,
Super-resolution Network

Biography

Feng Li received the B.S. degree from Anhui Normal University, Wuhu, China, in 2016. He is currently working toward the Ph.D. degree with the Institute of Information Science, Beijing Jiaotong University, Beijing, China. His research interests include image and video compression, image and video super resolution, and other low-level computer vision tasks, with the focus on deep-learning-based methods.(Based on document published on 12 July 2022).

Publications

11

Citations

210

Publications by Year

20172023

Co-Authors:

Huihui Bai
Runmin Cong
Lingzhi He
Anqi Li
Kang Liao

Show All Co-Authors (19)

Author's Published Works

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Showing 1-25 of 114 results

Conferences (102)

Journals (12)

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R. Trebino(59)
Rick Trebino(55)
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School of Physics, Georgia Institute of Technology, Atlanta, GA, USA(50)
Combustion Research Facility, Sandia National Laboratories, Livermore, CA, USA(7)
School of Physics, Georgia Institute of Technology, Atlanta, Georgia, USA(7)
Georgia Institute of Technology, Atlanta, GA, USA(6)
Georgia Institute of Technology, School of Physics, Atlanta, GA, USA(6)
IEEE Journal of Quantum Electronics(9)
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference(6)
CLEO '97., Summaries of Papers Presented at the Conference on Lasers and Electro-Optics(6)
2020 Conference on Lasers and Electro-Optics (CLEO)(5)
CLEO: 2011 - Laser Science to Photonic Applications(5)
IEEE(114)
San Jose, CA, USA(31)
Baltimore, MD, USA(27)
Long Beach, CA, USA(9)
San Francisco, CA, USA(9)
Munich, Germany(7)
Optical Pulse(57)
Frequency-resolved Optical Gating(20)
Pulse Wave(18)
Spectral Phase(18)
Pulse Phase(16)

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Results

Reliable Characterization of Unstable Pulse Trains in Third-Order Versions of Frequency-Resolved Optical Gating

Rana Jafari;Rick Trebino

2021 Conference on Lasers and Electro-Optics (CLEO)

Year: 2021 | Conference Paper |

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We show that the RANA approach, which reliably retrieves pulses in stable trains, reliably retrieves pulses in third-order FROG even in the presence of unstable pulse shapes. Importantly, it reliably indicates the presence of instability.Show More

Reliable Characterization of Unstable Pulse Trains in Third-Order Versions of Frequency-Resolved Optical Gating

Rana Jafari;Rick Trebino

2021 Conference on Lasers and Electro-Optics (CLEO)

Year: 2021 | Conference Paper |

Measuring Ultraviolet, Femtosecond Pulses in a Medium with a Slow Response

Travis Jones;William Peters;Anatoly Efimov;Dmitry Yarotski;Richard Sandberg;Rick Trebino;Pamela Bowlan

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

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We demonstrate that with transient grating, ultraviolet pulse shapes can be encoded in near-infrared nonlinear optical signals, even in a non-instantaneous medium. We present measurements of chirped 400 nm pulses made in an absorbing medium.Show More

Measuring Ultraviolet, Femtosecond Pulses in a Medium with a Slow Response

Travis Jones;William Peters;Anatoly Efimov;Dmitry Yarotski;Richard Sandberg;Rick Trebino;Pamela Bowlan

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

Retrieving the Coherent Artifact with FROG

Esmerando Escoto;Rana Jafari;Rick Trebino;Günter Steinmeyer

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

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The coherent artifact hinders accurate inversion of pulse measurements. Here we demonstrate a FROG algorithm to accurately retrieve not only the average pulse shape but also the artifact itself, providing access to the underlying coherence properties.Show More

Retrieving the Coherent Artifact with FROG

Esmerando Escoto;Rana Jafari;Rick Trebino;Günter Steinmeyer

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

Complete, Single Shot, Spatiotemporal Measurement of a Terawatt Laser System

Elizabeth Grace;Tammy Ma;Rana Jafari;Zhe Guang;Jaebum Park;Brent Stuart;Jerry Clark;Elijah Kemp;Stephen Maricle;Jim Moody;Ronnie Shepherd;Rick Trebino

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

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A single shot, complete spatiotemporal measurement of the complex electric field E(x, y, z, t) emitted by a high power (> 0.1 TW) laser is demonstrated for the first time. We generate movies of the laser's electric field E(x, y, z, t) before and after the chirped pulse amplification chain and examine the temporal, spectral, and spatial field features.Show More

Complete, Single Shot, Spatiotemporal Measurement of a Terawatt Laser System

Elizabeth Grace;Tammy Ma;Rana Jafari;Zhe Guang;Jaebum Park;Brent Stuart;Jerry Clark;Elijah Kemp;Stephen Maricle;Jim Moody;Ronnie Shepherd;Rick Trebino

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

Pulse Recovery from Frequency-Resolved-Optical-Gating Traces of Trains of Unstable Pulse Shapes

Rana Jafari;Rick Trebino

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

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We show that the recently introduced RANA FROG pulse-retrieval approach provides an exceptionally reliable indication of pulse-shape stability vs. instability in trains of pulses.Show More

Pulse Recovery from Frequency-Resolved-Optical-Gating Traces of Trains of Unstable Pulse Shapes

Rana Jafari;Rick Trebino

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

Single-Shot Measurement of Extreme Ultraviolet Free Electron Laser Pulses

William Peters;Travis Jones;Anatoly Efimov;Emanuele Pedersoli;Laura Foglia;Riccardo Mincigrucci;Ivaylo Nikolov;Rick Trebino;Richard Sandberg;Miltcho Danailov;Flavio Capotondi;Filippo Bencivenga;Pamela Bowlan

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

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We demonstrate an all-optical approach for measuring spectrograms of individual FEL pulses by measuring a spectrally-resolved EUV-EUV-optical four-wave-mixing signal. We experimentally demonstrate that this is phase-sensitive can be applied to structured and unstable pulse trains.Show More

Single-Shot Measurement of Extreme Ultraviolet Free Electron Laser Pulses

William Peters;Travis Jones;Anatoly Efimov;Emanuele Pedersoli;Laura Foglia;Riccardo Mincigrucci;Ivaylo Nikolov;Rick Trebino;Richard Sandberg;Miltcho Danailov;Flavio Capotondi;Filippo Bencivenga;Pamela Bowlan

2020 Conference on Lasers and Electro-Optics (CLEO)

Year: 2020 | Conference Paper |

High-Sensitivity, Simple Frequency-Resolved-Optical-Gating Device

Travis Jones;Peter Šušnjar;Rok Petkovšek;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 3 | Journal Article |

Cited by: Papers (1)

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We introduce a practical self-referenced device for the complete temporal intensity-and-phase measurement of few-femtojoule-level fs and ps pulses based on the simple version of frequency-resolved-optical gating, called GRENOUILLE. We replace the usual crossed-beam line-focus geometry with a point-focus near-collinear-beam geometry and a traditional delay line that allows a longer path length in t...Show More

High-Sensitivity, Simple Frequency-Resolved-Optical-Gating Device

Travis Jones;Peter Šušnjar;Rok Petkovšek;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 3 | Journal Article |

Crystal-Configuration Considerations for Higher-Sensitivity Picosecond-Pulse SHG FROG

Peter Šušnjar;Travis Jones;Rick Trebino;Rok Petkovšek

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 2 | Journal Article |

Cited by: Papers (2)

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We experimentally compare a thick BIBO crystal, a walk-off compensating configuration of thin BBO crystals, and a thin PPLN crystal for the use as a nonlinear medium in SHG FROG, aiming for increased sensitivity required for complete pulse characterization of low-energy (below pJ) pulses a few picoseconds long at wavelengths near 1030 nm. We investigate the dependence of the spectral bandwidth of ...Show More

Crystal-Configuration Considerations for Higher-Sensitivity Picosecond-Pulse SHG FROG

Peter Šušnjar;Travis Jones;Rick Trebino;Rok Petkovšek

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 2 | Journal Article |

Extremely Robust Pulse Retrieval From Even Noisy Second-Harmonic-Generation Frequency-Resolved Optical Gating Traces

Rana Jafari;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 1 | Journal Article |

Cited by: Papers (8)

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We further improve and then demonstrate the reliability of the previously introduced RANA approach for the second-harmonic-generation frequency-resolved optical gating (SHG FROG) phase-retrieval algorithm in the presence of significant noise in the traces. We provide a set of relevant parameters for this approach according to the noise level and trace size. Using it, we achieve 100% convergence fo...Show More

Extremely Robust Pulse Retrieval From Even Noisy Second-Harmonic-Generation Frequency-Resolved Optical Gating Traces

Rana Jafari;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2020 | Volume: 56, Issue: 1 | Journal Article |

100% Reliable Frequency-Resolved Optical Gating Pulse-Retrieval Algorithmic Approach

Rana Jafari;Travis Jones;Rick Trebino

2019 Conference on Lasers and Electro-Optics (CLEO)

Year: 2019 | Conference Paper |

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We introduce a FROG algorithmic approach that always converges and is faster. It involves retrieving the correct spectrum directly from the trace and implementing a multi-grid scheme with multiple initial guessesShow More

100% Reliable Frequency-Resolved Optical Gating Pulse-Retrieval Algorithmic Approach

Rana Jafari;Travis Jones;Rick Trebino

2019 Conference on Lasers and Electro-Optics (CLEO)

Year: 2019 | Conference Paper |

Sensitive Interferometric GRENOUILLE Device

Travis Jones;Peter Šušnjar;Rok Petkovšek;Rick Trebino

2019 Conference on Lasers and Electro-Optics (CLEO)

Year: 2019 | Conference Paper |

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We introduce a practical, sensitive and self-referenced frequency-resolved optical gating technique for measuring picosecond pulses with femtojoule energies. We demonstrate the capability of this technique to measure a pulse with complex temporal and spectral structure. © 2019 The Author(s)Show More

Sensitive Interferometric GRENOUILLE Device

Travis Jones;Peter Šušnjar;Rok Petkovšek;Rick Trebino

2019 Conference on Lasers and Electro-Optics (CLEO)

Year: 2019 | Conference Paper |

Highly Reliable Frequency-Resolved Optical Gating Pulse-Retrieval Algorithmic Approach

Rana Jafari;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2019 | Volume: 55, Issue: 4 | Journal Article |

Cited by: Papers (14)

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Frequency-resolved optical gating (FROG) is widely used to measure ultrashort laser pulses, also providing an excellent indication of pulse-shape instabilities by disagreement between measured and retrieved FROG traces. However, FROG requires-but currently lacks-an extremely reliable pulse-retrieval algorithm; therefore, this work provides one. It uses a simple procedure for directly retrieving th...Show More

Highly Reliable Frequency-Resolved Optical Gating Pulse-Retrieval Algorithmic Approach

Rana Jafari;Rick Trebino

IEEE Journal of Quantum Electronics

Year: 2019 | Volume: 55, Issue: 4 | Journal Article |

The Measurement of Ultrashort Laser Pulses

Rick Trebino;Zhe Guang;Ping Zhu;Michelle Rhodes

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC)

Year: 2018 | Conference Paper |

Cited by: Papers (2)

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We review the state of the art of ultrashort-laser-pulse measurement. One such set of techniques (and the first) is the well-known class of frequency-resolved-optical-gating (FROG) techniques, which can measure the intensity and phase vs. time (and frequency) for essentially arbitrary pulses without requiring any assumptions about the pulse. Another set includes two methods for measuring the inten...Show More

The Measurement of Ultrashort Laser Pulses

Rick Trebino;Zhe Guang;Ping Zhu;Michelle Rhodes

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC)

Year: 2018 | Conference Paper |

High-Speed "Multi-Grid" Pulse-Retrieval Algorithm for Frequency-Resolved Optical Gating

Rana Jafari;Rick Trebino

2018 Conference on Lasers and Electro-Optics (CLEO)

Year: 2018 | Conference Paper |

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We improved the FROG-algorithm convergence speed for very complex pulses using a "multi-grid" technique, reducing the convergence time by a factor of ~7 for cross-correlation FROG for pulses with time-bandwidth products from 40 to 90.Show More

High-Speed "Multi-Grid" Pulse-Retrieval Algorithm for Frequency-Resolved Optical Gating

Rana Jafari;Rick Trebino

2018 Conference on Lasers and Electro-Optics (CLEO)

Year: 2018 | Conference Paper |

Pulse-Chirp Instability and Issues for Its Measurement

Rana Jafari;Rick Trebino

2018 Conference on Lasers and Electro-Optics (CLEO)

Year: 2018 | Conference Paper |

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Pulses often possess random amounts of linear chirp. We find that SPIDER cannot detect this variation, yielding instead a shorter, flat-phase, coherent artifact. SHG FROG can and provides a better estimate of the average pulse.Show More

Pulse-Chirp Instability and Issues for Its Measurement

Rana Jafari;Rick Trebino

2018 Conference on Lasers and Electro-Optics (CLEO)

Year: 2018 | Conference Paper |

Time-range-extended spatiotemporal measurement technique for multi-mode fiber pulses

Ping Zhu;Travis Jones;Rick Trebino

2017 Conference on Lasers and Electro-Optics (CLEO)

Year: 2017 | Conference Paper |

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A multi-delay spatiotemporal measurement technique is introduced to characterize multi-mode fiber long pulses without additional pulse pre-compression. Two-mode fibers and four-mode fibers were tested with extended temporal measurement range, indicating different modes experiencing different dispersion.Show More

Time-range-extended spatiotemporal measurement technique for multi-mode fiber pulses

Ping Zhu;Travis Jones;Rick Trebino

2017 Conference on Lasers and Electro-Optics (CLEO)

Year: 2017 | Conference Paper |

Unstable multi-pulsing can be invisible to some ultrashort pulse-measurement techniques

Michelle Rhodes;Zhe Guang;Rick Trebino

2016 Conference on Lasers and Electro-Optics (CLEO)

Year: 2016 | Conference Paper |

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Simulations show that variable relative phase of a satellite pulse causes the satellite to wash out of a SPIDER measurement completely. FROG and autocorrelation measurements see satellite pulses but cannot determine their precise properties.Show More

Unstable multi-pulsing can be invisible to some ultrashort pulse-measurement techniques

Michelle Rhodes;Zhe Guang;Rick Trebino

2016 Conference on Lasers and Electro-Optics (CLEO)

Year: 2016 | Conference Paper |

Coherent artifact study of multiphoton intrapulse interference phase scan

Michelle Rhodes;Rick Trebino

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

Cited by: Papers (1)

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We study intensity-and-phase measurements of unstable trains of pulses using multiphoton intrapulse interference phase scan (MIIPS). MIIPS retrieves only a coherent artifact and so can under-estimates pulse lengths, but wider measured traces can indicate instability.Show More

Coherent artifact study of multiphoton intrapulse interference phase scan

Michelle Rhodes;Rick Trebino

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

Pulse characterization in ultrafast microscopy: A comparison of FROG, MIIPS and G-MIIPS

Alberto Comin;Michelle Rhodes;Richard Ciesielski;Rick Trebino;Achim Hartschuh

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

Cited by: Papers (1)

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MIIPS is a popular method for compressing femtosecond pulses. It is not ideal for complex pulses, like those produced by self-phase modulation. We show that several limitations are fixed by an improvement called G-MIIPS.Show More

Pulse characterization in ultrafast microscopy: A comparison of FROG, MIIPS and G-MIIPS

Alberto Comin;Michelle Rhodes;Richard Ciesielski;Rick Trebino;Achim Hartschuh

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

Complete spatiotemporal measurement of ultrashort pulses emerging from multi-mode optical fiber

Zhe Guang;Rick Trebino

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

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Using a newly developed technique, we measure the complete spatiotemporal field of ultrashort pulses emerging from dual-mode optical fibers, finding spatiotemporal complexity, introduced by the different spatial modes, having different group velocities and modal dispersions.Show More

Complete spatiotemporal measurement of ultrashort pulses emerging from multi-mode optical fiber

Zhe Guang;Rick Trebino

2015 Conference on Lasers and Electro-Optics (CLEO)

Year: 2015 | Conference Paper |

The coherent artifact in interferometric pulse-measurement techniques

Michelle Rhodes;Madhuri Mukhopadhyay;Jonathan Birge;Günter Steinmeyer;Saidur Rahaman;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

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We study multi-shot intensity-and-phase measurements of unstable trains of ultrashort pulses using two-dimensional spectral shearing interferometry (2DSI) and self-referenced spectral interferometry (SRSI) in order to identify warning signs of pulse-shape instability.Show More

The coherent artifact in interferometric pulse-measurement techniques

Michelle Rhodes;Madhuri Mukhopadhyay;Jonathan Birge;Günter Steinmeyer;Saidur Rahaman;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

Simple single-shot technique for measuring the complete spatiotemporal intensity and phase of a complex ultrashort pulse

Zhe Guang;Michelle Rhodes;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

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Our simple device measures the complete spatiotemporal field of an arbitrary ultrashort pulse complex in both space and time (x, y, t). We also demonstrate a method for displaying the resulting dual plots of complex four-dimensional data.Show More

Simple single-shot technique for measuring the complete spatiotemporal intensity and phase of a complex ultrashort pulse

Zhe Guang;Michelle Rhodes;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

Single-shot measurement of the complete temporal intensity and phase of supercontinuum

Tsz Chun Wong;Michelle Rhodes;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

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We demonstrate the first technique for the complete temporal measurement of a single supercontinuum pulse. We achieve large ranges and high resolutions using polarization gating, a tilted gate pulse, and the cancellation of geometrical smearing.Show More

Single-shot measurement of the complete temporal intensity and phase of supercontinuum

Tsz Chun Wong;Michelle Rhodes;Rick Trebino

2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications

Year: 2014 | Conference Paper |

Measuring many-picosecond-long ultrashort pulses on a single shot using XFROG and pulse-front tilt

Tsz Chun Wong;Rick Trebino

Year: 2013 | Conference Paper |

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We demonstrate the use of pulse-front tilt in cross-correlation frequency-resolved optical gating (XFROG) to measure complex many-picosecond-long pulses on a single shot.Show More

Measuring many-picosecond-long ultrashort pulses on a single shot using XFROG and pulse-front tilt

Tsz Chun Wong;Rick Trebino

Year: 2013 | Conference Paper |

The coherent artifact in modern pulse-shape measurements

Michelle Rhodes;Günter Steinmeyer;Justin Ratner;Rick Trebino

Year: 2013 | Conference Paper |

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We simulate multi-shot measurements of trains of pulses with unstable shapes using SPIDER, SRSI, SHG FROG, PG FROG, and XFROG. Interferometric methods measure only the coherent artifact, while FROG methods better approximate the trains.Show More

The coherent artifact in modern pulse-shape measurements

Michelle Rhodes;Günter Steinmeyer;Justin Ratner;Rick Trebino

Year: 2013 | Conference Paper |

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