Improvement of the bulk laser damage threshold of potassium dihydrogen phosphate crystals by ultraviolet irradiation

Yokotani, A.; Sasaki, T.; Yoshida, K.; Yamanaka, T.; Yamanaka, C.
April 1986
Applied Physics Letters;4/21/1986, Vol. 48 Issue 16, p1030
Academic Journal
Potassium dihydrogen phosphate (KDP) crystals were grown under the irradiation of ultraviolet light. The bulk laser damage threshold was improved to two to three times (15–20 J/cm2) compared to the case of crystals grown by conventional methods. Microbes such as germs and bacteria are frequently generated in the KDP solution with the usual growth method. The ultraviolet light reduces or eliminates organic materials such as microbes or their carcasses incorporated into the crystal, which are the cause of low damage threshold.


Related Articles

  • UV Irradiation Effect on the Surface KTaO3 Crystals. Suwanwong, Sanit; Hutem, Artit; Kerdmee, Supoj; Moonsri, Piyarut // Applied Mechanics & Materials;2017, Vol. 855, p121 

    The perovskite oxides property are wider band-gap semiconductors and are sensitive to visible light but opaque In this paper, we are interested in the resistance change of insulating KTaO3 crystals could decrease as much as 3-4 orders of magnitudes under exposure to focused sunlight. But, these...

  • Laser-induced photochromic damage in potassium titanyl phosphate. Blachman, R.; Bordui, P.F.; Fejer, M.M. // Applied Physics Letters;3/14/1994, Vol. 64 Issue 11, p1318 

    Examines the photochromic damage induced in potassium titanyl phosphate crystals by ultraviolet irradiation. Characteristics of the photochromic damage; Duration of recovery from damaged crystals; Significance of irradiation intensity for damage formation; Analysis of damage during second...

  • Proton Ordering and Spontaneous Polarization in Mixed KDP–ADP Crystals. Korotkov, L. N. // Physics of the Solid State;Jun2001, Vol. 43 Issue 6, p1112 

    Temperature dependences of the transverse permittivity of mixed K[sub 1-x](NH[sub 4])[sub x]H[sub 2]PO[sub 4] crystals (x asymp; 0, 0.04, 0.09, and 0.19) are experimentally investigated with the aim of determining the parameter P[sub A] that characterizes proton ordering in the region of the...

  • Structure and properties of crystals in the potassium titanyl phosphate family: A review. Sorokina, N. I.; Voronkova, V. I. // Crystallography Reports;Jan2007, Vol. 52 Issue 1, p80 

    This paper presents an overview of the data available in the literature and the results obtained by the authors in the study of the influence of the chemical composition on the structure and properties of crystals in the potassium titanyl phosphate family. The structure and properties of...

  • Continuous-wave light source at 317 nm based on frequency doubling of a diode laser. Talvitie, H.; Seppänen, A.; Äijälä, A.; Ikonen, E. // Applied Physics B: Lasers & Optics;1998, Vol. 66 Issue 4, p397 

    Abstract. Continuous-wave ultraviolet radiation has been generated by frequency doubling the output of a 15-mW, 634-nm diode laser with a rubidium dihydrogen phosphate (RDP) crystal inside an external resonant cavity. Single-frequency operation (2 MHz linewidth) of the diode laser is obtained by...

  • The synthesis of the novel vacuum ultraviolet double frequency crystal KBe2BO3F2 (KBBF). Yaowen Ban; Wenli Wang; Wei Zhang; Jian Han // Advanced Materials Research;2014, Vol. 1004-1005, p348 

    KBe2BO3F2 (KBBF) crystal is a sole important and practical ultraviolet nonlinear optical material. It can realize the output of vacuum ultraviolet laser below 200nm with the method of phase-matching. However, it is difficult to grow a practical crystal size with the general growth methods such...

  • Broadband supercontinuum generation in a single potassium di-hydrogen phosphate (KDP) crystal achieved in tandem with sum frequency generation. Kumar, R. Sai Santosh; Harsha, S. Sree; Rao, D. Narayana // Applied Physics B: Lasers & Optics;Mar2007, Vol. 86 Issue 4, p615 

    We present here an enhanced broadband supercontinuum generation in a potassium di-hydrogen phosphate (KDP) crystal. The enhancement in the bandwidth of the white light is obtained towards the shorter wavelength regime (<400 nm) by employing supercontinuum generation and sum frequency generation...

  • Mechanical response of KD[sub 2x]H[sub 2(1-x)]PO[sub 4] crystals during nanoindentation. Kucheyev, S.O.; Siekhaus, W.J.; Land, T.A.; Demos, S.G. // Applied Physics Letters;3/29/2004, Vol. 84 Issue 13, p2274 

    The deformation behavior of rapidly grown tetragonal KD[sub 2x]H[sub 2(1-x)]PO[sub 4] (KDP and DKDP) single crystals, with a deuteration degree x of 0.0, 0.3, and 0.6, is studied by nanoindentation with a 1 μm radius spherical indenter. Within experimental error, the deformation behavior is...

  • Microscopic theory of the electrocaloric effect in the paraelectric phase of potassium dihydrogen phosphate. Dunne, Lawrence J.; Valant, Matjaz; Manos, George; Axelsson, Anna-Karin; Alford, Neil // Applied Physics Letters;9/22/2008, Vol. 93 Issue 12, p122906 

    Here we present a microscopic theory of the electrocaloric effect in potassium dihydrogen phosphate, KH2PO4, based on Slater’s lattice model. The model reproduces the essential features of the experimentally observed behavior and also gives a remarkably accurate description of the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics