title: Large-acceptance diamond planar refractive lenses manufactured by laser cutting.
abstract: For the first time, single-crystal diamond planar refractive lenses have been fabricated by laser micromachining in 300 µm-thick diamond plates which were grown by chemical vapour deposition. Linear lenses with apertures up to 1 mm and parabola apex radii up to 500 µm were manufactured and tested at the ESRF ID06 beamline. The large acceptance of these lenses allows them to be used as beam-conditioning elements. Owing to the unsurpassed thermal properties of single-crystal diamond, these lenses should be suitable to withstand the extreme flux densities expected at the planned fourth-generation X-ray sources.
authors.affiliation: Immanuel Kant Baltic Federal University, Nevskogo 14a, 23600 Kaliningrad, Russian Federation.
authors.forename: Maxim
authors.initials: M
authors.lastname: Polikarpov
authors.affiliation: European Synchrotron Radiation Facility, 71 avenue des Martyrs, Grenoble 38043, France.
authors.forename: Irina
authors.initials: I
authors.lastname: Snigireva
authors.affiliation: European Synchrotron Radiation Facility, 71 avenue des Martyrs, Grenoble 38043, France.
authors.forename: John
authors.initials: J
authors.lastname: Morse
authors.affiliation: Institute of Microelectronics Technology RAS, Chernogolovka 142432, Russian Federation.
authors.forename: Vyacheslav
authors.initials: V
authors.lastname: Yunkin
authors.affiliation: Institute of Microelectronics Technology RAS, Chernogolovka 142432, Russian Federation.
authors.forename: Sergey
authors.initials: S
authors.lastname: Kuznetsov
authors.affiliation: European Synchrotron Radiation Facility, 71 avenue des Martyrs, Grenoble 38043, France.
authors.forename: Anatoly
authors.initials: A
authors.lastname: Snigirev
keywords: X-ray optics; beam conditioning; diamond planar lenses; diamond processing; laser micromachining; refractive lenses