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Lucia Ganzer
Istituto di Fotonica e Nanotecnologie (IFN), Consiglio Nazionale delle Ricerche (CNR), Dipartimento di Fisica, Politecnico di Milano, P.zza Leonardo da Vinci 32, 20132 Milano, Italy

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Short Biography

Lucia Ganzer studied Physics at the University of Milano-Bicocca where she graduated in Biophotonics. After graduation, she worked for almost a year at San Raffaele Research Institute in Milano. In 2019 she took her PhD in Physics at Politecnico of Milano and then she worked at the Institute of Photonics and Nanotechnogies (IFN-CNR) in Milan with a research fellowship.

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Review
Published: 31 December 2020 in Molecules
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The 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY)-based molecules have emerged as interesting material for optoelectronic applications. The facile structural modification of BODIPY core provides an opportunity to fine-tune its photophysical and optoelectronic properties thanks to the presence of eight reactive sites which allows for the developing of a large number of functionalized derivatives for various applications. This review will focus on BODIPY application as solid-state active material in solar cells and in photonic devices. It has been divided into two sections dedicated to the two different applications. This review provides a concise and precise description of the experimental results, their interpretation as well as the conclusions that can be drawn. The main current research outcomes are summarized to guide the readers towards the full exploitation of the use of this material in optoelectronic applications.

ACS Style

Benedetta Maria Squeo; Lucia Ganzer; Tersilla Virgili; Mariacecilia Pasini. BODIPY-Based Molecules, A Platform for Photonic and Solar Cells. Molecules 2020, 26, 153 .

AMA Style

Benedetta Maria Squeo, Lucia Ganzer, Tersilla Virgili, Mariacecilia Pasini. BODIPY-Based Molecules, A Platform for Photonic and Solar Cells. Molecules. 2020; 26 (1):153.

Chicago/Turabian Style

Benedetta Maria Squeo; Lucia Ganzer; Tersilla Virgili; Mariacecilia Pasini. 2020. "BODIPY-Based Molecules, A Platform for Photonic and Solar Cells." Molecules 26, no. 1: 153.

Journal article
Published: 16 June 2018 in Applied Sciences
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We describe a transient absorption (TA) spectroscopy system in the ultraviolet (UV) spectral range, for the study of the ultrafast optical response of biomolecules. After reviewing the techniques for the generation and characterization of ultrashort UV pulses, we describe the experimental setup of our ultrabroadband UV TA spectrometer. The setup combines sub-20-fs UV pump pulses tunable between 3.35 and 4.7 eV, with broadband white-light-continuum probe pulses in the 1.7–4.6 eV range. Thanks to the broad tunability of the pump pulses in the UV spectral range, the extremely high temporal resolution and the broad spectral coverage of the probe, this TA system is a powerful and versatile tool for the study of many biomolecules. As an example of its potential, we apply the TA spectrometer to track ultrafast internal conversion processes in pyrene after excitation in the UV, and to resolve an impulsively excited molecular vibration with 85-fs period.

ACS Style

Rocío Borrego-Varillas; Lucia Ganzer; Giulio Cerullo; Cristian Manzoni. Ultraviolet Transient Absorption Spectrometer with Sub-20-fs Time Resolution. Applied Sciences 2018, 8, 989 .

AMA Style

Rocío Borrego-Varillas, Lucia Ganzer, Giulio Cerullo, Cristian Manzoni. Ultraviolet Transient Absorption Spectrometer with Sub-20-fs Time Resolution. Applied Sciences. 2018; 8 (6):989.

Chicago/Turabian Style

Rocío Borrego-Varillas; Lucia Ganzer; Giulio Cerullo; Cristian Manzoni. 2018. "Ultraviolet Transient Absorption Spectrometer with Sub-20-fs Time Resolution." Applied Sciences 8, no. 6: 989.

Rapid communication
Published: 01 September 2017 in ACS Photonics
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We report on the broadband transient optical response of anisotropic, amorphous silicon nanobricks that exhibit Mie-type resonances. A quantitative model is developed to identify and disentangle the three physical processes that govern the ultrafast changes of the nanobrick optical properties, namely, two-photon absorption, free-carrier relaxation, and lattice heating. We reveal a set of operating windows where ultrafast all-optical modulation of transmission is achieved with full return to zero in 20 ps. This is made possible because of the distinct dispersive features exhibited by the competing nonlinear processes in transmission and despite the slow (nanosecond) internal lattice dynamics. The observed ultrafast switching behavior can be independently engineered for both orthogonal polarizations using the large anisotropy of nanobricks, thus allowing ultrafast anisotropy control. Our results categorically ascertain the potential of all-dielectric resonant nanophotonics as a platform for ultrafast optical devices and reveal the possibility for ultrafast polarization-multiplexed displays and polarization rotators.

ACS Style

Giuseppe Della Valle; Ben Hopkins; Lucia Ganzer; Tatjana Stoll; Mohsen Rahmani; Stefano Longhi; Yuri S. Kivshar; Costantino De Angelis; Dragomir N. Neshev; Giulio Cerullo. Nonlinear Anisotropic Dielectric Metasurfaces for Ultrafast Nanophotonics. ACS Photonics 2017, 4, 2129 -2136.

AMA Style

Giuseppe Della Valle, Ben Hopkins, Lucia Ganzer, Tatjana Stoll, Mohsen Rahmani, Stefano Longhi, Yuri S. Kivshar, Costantino De Angelis, Dragomir N. Neshev, Giulio Cerullo. Nonlinear Anisotropic Dielectric Metasurfaces for Ultrafast Nanophotonics. ACS Photonics. 2017; 4 (9):2129-2136.

Chicago/Turabian Style

Giuseppe Della Valle; Ben Hopkins; Lucia Ganzer; Tatjana Stoll; Mohsen Rahmani; Stefano Longhi; Yuri S. Kivshar; Costantino De Angelis; Dragomir N. Neshev; Giulio Cerullo. 2017. "Nonlinear Anisotropic Dielectric Metasurfaces for Ultrafast Nanophotonics." ACS Photonics 4, no. 9: 2129-2136.

Preprint
Published: 03 June 2017
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We report on the broadband transient optical response from anisotropic nanobrick amorphous silicon particles, exhibiting Mie-type resonances. A quantitative model is developed to identify and disentangle the three physical processes that govern the ultrafast changes of the nanobrick optical properties, namely two-photon absorption, free-carrier relaxation, and lattice heating. We reveal a set of operating windows where ultrafast all-optical modulation of transmission is achieved with full return to zero in 20 ps. This is made possible due to the interplay between the competing nonlinear processes and despite the slow (nanosecond) internal lattice dynamics. The observed ultrafast switching behavior can be independently engineered for both or- thogonal polarizations using the large anisotropy of nanobricks thus allowing ultrafast anisotropy control. Our results categorically ascertain the potential of all-dielectric resonant nanophotonics as a platform for ultrafast optical devices, and reveal the pos- sibility for ultrafast polarization-multiplexed displays and polarization rotators.

ACS Style

Giuseppe Della Valle; Ben Hopkins; Lucia Ganzer; Tatjana Stoll; Mohsen Rahmani; Stefano Longhi; Yuri S. Kivshar; Costantino De Angelis; Dragomir N. Neshev; Giulio Cerullo. Nonlinear anisotropic dielectric metasurfaces for ultrafast nanophotonics. 2017, 1 .

AMA Style

Giuseppe Della Valle, Ben Hopkins, Lucia Ganzer, Tatjana Stoll, Mohsen Rahmani, Stefano Longhi, Yuri S. Kivshar, Costantino De Angelis, Dragomir N. Neshev, Giulio Cerullo. Nonlinear anisotropic dielectric metasurfaces for ultrafast nanophotonics. . 2017; ():1.

Chicago/Turabian Style

Giuseppe Della Valle; Ben Hopkins; Lucia Ganzer; Tatjana Stoll; Mohsen Rahmani; Stefano Longhi; Yuri S. Kivshar; Costantino De Angelis; Dragomir N. Neshev; Giulio Cerullo. 2017. "Nonlinear anisotropic dielectric metasurfaces for ultrafast nanophotonics." , no. : 1.

Conference paper
Published: 01 January 2016 in Conference on Lasers and Electro-Optics
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We introduce a scheme to generate collinear, interferometrically locked UV pulse pairs by combining birefringence and sum-frequency generation between a narrowband infrared light and broadband visible pulses. The scheme is applied to 2D electronic spectroscopy.

ACS Style

Rocio Borrego-Varillas; Aurelio Oriana; Lucia Ganzer; Cristian Manzoni; Giulio Cerullo. Two-dimensional spectroscopy in the ultraviolet by a birefringent delay line. Conference on Lasers and Electro-Optics 2016, SF1I.6 .

AMA Style

Rocio Borrego-Varillas, Aurelio Oriana, Lucia Ganzer, Cristian Manzoni, Giulio Cerullo. Two-dimensional spectroscopy in the ultraviolet by a birefringent delay line. Conference on Lasers and Electro-Optics. 2016; ():SF1I.6.

Chicago/Turabian Style

Rocio Borrego-Varillas; Aurelio Oriana; Lucia Ganzer; Cristian Manzoni; Giulio Cerullo. 2016. "Two-dimensional spectroscopy in the ultraviolet by a birefringent delay line." Conference on Lasers and Electro-Optics , no. : SF1I.6.

Conference paper
Published: 01 January 2016 in 15th International Conference on Ultrafast Phenomena
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We introduce a scheme to generate collinear, interferometrically locked UV pulse pairs by combining birefringence and sum-frequency generation between narrowband infrared light and broadband visible pulses. The scheme is applied to 2D electronic spectroscopy.

ACS Style

Rocio Borrego-Varillas; Aurelio Oriana; Lucia Ganzer; Cristian Manzoni; Giulio Cerullo. Two-dimensional Spectroscopy in the Ultraviolet by a Birefringent Delay Line. 15th International Conference on Ultrafast Phenomena 2016, UW4A.40 .

AMA Style

Rocio Borrego-Varillas, Aurelio Oriana, Lucia Ganzer, Cristian Manzoni, Giulio Cerullo. Two-dimensional Spectroscopy in the Ultraviolet by a Birefringent Delay Line. 15th International Conference on Ultrafast Phenomena. 2016; ():UW4A.40.

Chicago/Turabian Style

Rocio Borrego-Varillas; Aurelio Oriana; Lucia Ganzer; Cristian Manzoni; Giulio Cerullo. 2016. "Two-dimensional Spectroscopy in the Ultraviolet by a Birefringent Delay Line." 15th International Conference on Ultrafast Phenomena , no. : UW4A.40.