Abstract
A study of transient optical absorption of the ADP (NH4H2PO4) and KDP (KH2PO4) nonlinear crystals in the visible and UV spectral regions is reported. Measurements made by absorption optical spectroscopy with nanosecond-time resolution established that the transient optical absorption (TOA) of these crystals originates from optical transitions in the hole A and B radicals and the optical-density relaxation kinetics is rate-controlled by interdefect tunneling recombination, which involves these hole centers and the electronic H0 centers representing neutral hydrogen atoms. At 290 K, hole polarons and the H0 centers undergo thermally stimulated migration, which is not accompanied by carrier ejection into the conduction or valence band. The slow components of the TOA kinetics with characteristic times from a few tens of milliseconds to a few seconds can be assigned to diffusion-controlled annihilation of hydrogen vacancies associated with impurity or structural defects.
| Original language | English |
|---|---|
| Pages (from-to) | 880-887 |
| Number of pages | 8 |
| Journal | Physics of the Solid State |
| Volume | 44 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2002 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Transient optical absorption of hole polarons in ADP (NH4H2PO4) and KDP (KH2PO4) crystals. / Ogorodnikov, I. N.; Yakovlev, V. Yu; Shul'gin, B. V.; Satybaldieva, M. K.
In: Physics of the Solid State, Vol. 44, No. 5, 01.05.2002, p. 880-887.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Transient optical absorption of hole polarons in ADP (NH4H2PO4) and KDP (KH2PO4) crystals
AU - Ogorodnikov, I. N.
AU - Yakovlev, V. Yu
AU - Shul'gin, B. V.
AU - Satybaldieva, M. K.
PY - 2002/5/1
Y1 - 2002/5/1
N2 - A study of transient optical absorption of the ADP (NH4H2PO4) and KDP (KH2PO4) nonlinear crystals in the visible and UV spectral regions is reported. Measurements made by absorption optical spectroscopy with nanosecond-time resolution established that the transient optical absorption (TOA) of these crystals originates from optical transitions in the hole A and B radicals and the optical-density relaxation kinetics is rate-controlled by interdefect tunneling recombination, which involves these hole centers and the electronic H0 centers representing neutral hydrogen atoms. At 290 K, hole polarons and the H0 centers undergo thermally stimulated migration, which is not accompanied by carrier ejection into the conduction or valence band. The slow components of the TOA kinetics with characteristic times from a few tens of milliseconds to a few seconds can be assigned to diffusion-controlled annihilation of hydrogen vacancies associated with impurity or structural defects.
AB - A study of transient optical absorption of the ADP (NH4H2PO4) and KDP (KH2PO4) nonlinear crystals in the visible and UV spectral regions is reported. Measurements made by absorption optical spectroscopy with nanosecond-time resolution established that the transient optical absorption (TOA) of these crystals originates from optical transitions in the hole A and B radicals and the optical-density relaxation kinetics is rate-controlled by interdefect tunneling recombination, which involves these hole centers and the electronic H0 centers representing neutral hydrogen atoms. At 290 K, hole polarons and the H0 centers undergo thermally stimulated migration, which is not accompanied by carrier ejection into the conduction or valence band. The slow components of the TOA kinetics with characteristic times from a few tens of milliseconds to a few seconds can be assigned to diffusion-controlled annihilation of hydrogen vacancies associated with impurity or structural defects.
UR - http://www.scopus.com/inward/record.url?scp=0036014713&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036014713&partnerID=8YFLogxK
U2 - 10.1134/1.1477487
DO - 10.1134/1.1477487
M3 - Article
VL - 44
SP - 880
EP - 887
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 5
ER -