Synchrotron infrared nanospectroscopy in fourth-generation storage rings

Autor(es)

Santos, Thiago M. ; Lordano, Sergio ; Mayer, Rafael A. ; Volpe, Lucas ; Rodrigues, Gustavo M. ; Meyer, Bernd ; Westfahl, Harry, Jr. ; Freitas, Raul O.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF SYNCHROTRON RADIATION; v. 31, p. 10-pg., 2024-05-01.

Resumo

Fourth-generation synchrotron storage rings represent a significant milestone in synchrotron technology, offering outstandingly bright and tightly focused X-ray beams for a wide range of scientific applications. However, due to their inherently tight magnetic lattices, these storage rings have posed critical challenges for accessing lower-energy radiation, such as infrared (IR) and THz. Here the first-ever IR beamline to be installed and to operate at a fourth-generation synchrotron storage ring is introduced. This work encompasses several notable advancements, including a thorough examination of the new IR source at Sirius, a detailed description of the radiation extraction scheme, and the successful validation of our optical concept through both measurements and simulations. This optimal optical setup has enabled us to achieve an exceptionally wide frequency range for our nanospectroscopy experiments. Through the utilization of synchrotron IR nanospectroscopy on biological and hard matter samples, the practicality and effectiveness of this beamline has been successfully demonstrated. The advantages of fourth-generation synchrotron IR sources, which can now operate with unparalleled stability as a result of the stringent requirements for producing low-emittance X-rays, are emphasized. (AU)

• Processo FAPESP: 19/14017-9 - De ondas de éxcitons a THz-fônons: a nano-óptica de materiais 2Ds via nanoespectroscopia de infravermelho síncrotron
• Beneficiário: Raul de Oliveira Freitas
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 21/10487-0 - EMU concedido no processo 2019/14017-9: unidades de iluminação mid-IR-VIS para s-SNOM síncrotron
• Beneficiário: Raul de Oliveira Freitas
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 20/15740-3 - Nanofotônica de óxidos semicondutores de baixa dimensionalidade nas faixas de infravermelho e terahertz
• Beneficiário: Rafael Alves Mayer
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 22/11987-0 - EMU concedido no processo 2019/14017-9: nanoscópio s-SNOM customizado e aprimorado para operação com IR-THz síncrotron
• Beneficiário: Raul de Oliveira Freitas
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários