Observation of the hyperfine structure and anticrossings of hyperfine levels in the luminescence spectra of LiYF4:Ho3+

KN Boldyrev, BZ Malkin, MN Popova - Light: Science & Applications, 2022 - nature.com
Resolved hyperfine structure and narrow inhomogeneously broadened lines in the optical
spectra of a rare-earth-doped crystal are favorable for the implementation of various …

Femtosecond Laser Written Depressed-Cladding Waveguide 2 × 2, 1 × 2 and 3 × 3 Directional Couplers in Tm3+:YAG Crystal

N Skryabin, A Kalinkin, I Dyakonov, S Kulik - Micromachines, 2019 - mdpi.com
Ion-doped crystal-based compact devices capable of beam splitting and coupling are
enthralling for a broad range of classical and quantum integrated photonics applications. In …

Crystal field and hyperfine structure of in :Er single crystals: High-resolution optical and EPR spectroscopy

MN Popova, SA Klimin, SA Moiseev, KI Gerasimov… - Physical Review B, 2019 - APS
We report on a high-resolution optical and magneto-optical spectroscopy, luminescence,
and electron paramagnetic resonance (EPR) studies of yttrium orthophosphate single …

Optical coherence of 166Er: 7LiYF4 crystal below 1 K

N Kukharchyk, D Sholokhov, O Morozov… - New Journal of …, 2018 - iopscience.iop.org
We explore optical coherence and spin dynamics of an isotopically purified 166 Er: 7 LiYF 4
crystal below 1 K and at weak magnetic fields< 0.3 T. Crystals were grown in our lab and …

Optical vector network analysis of ultranarrow transitions in 166Er3+ : 7LiYF4 crystal

N Kukharchyk, D Sholokhov, O Morozov… - Optics Letters, 2018 - opg.optica.org
We present optical vector network analysis (OVNA) of an isotopically purified Er166^ 3+:
LiYF_47 crystal. The OVNA method is based on generation and detection of a modulated …

Electromagnetically induced transparency in an isotopically purified crystal

R Akhmedzhanov, L Gushchin, N Nizov, V Nizov… - Physical Review B, 2018 - APS
We report the first observation of electromagnetically induced transparency (EIT) in an
isotopically purified Nd 3+: YLiF 4 crystal. This crystal demonstrates inhomogeneous …

of functional dielectrics with rare-earth ions

MN Popova, M Diab, KN Boldyrev - Uspekhi Fizicheskikh Nauk, 2024 - ufn.ru
A brief review of recent studies of crystals doped with rare-earth ions performed at the
Institute of Spectroscopy of the Russian Academy of Sciences (ISAN) using high-resolution …

Electromagnetically induced transparency in a mono-isotopic 167Er:7LiYF4 crystal below 1 Kelvin: microwave photonics approach

N Kukharchyk, D Sholokhov, O Morozov… - Optics express, 2020 - opg.optica.org
Electromagnetically induced transparency allows for the controllable change of absorption
properties, which can be exploited in a number of applications including optical quantum …

Manifestation of Memory and Butterfly in the Photon Echo on Erbium Ions in LuLiF4 and YLiF4

AM Shegeda, SL Korableva, OA Morozov, VN Lisin… - JETP Letters, 2023 - Springer
The memory effect in the form of hysteresis has been detected in the measured dependence
of the intensity of the photon echo in YLiF4 and LuLiF4 samples with Er3+ impurity ions on …

Disorder and wave-function intermixing effects in the luminescence spectra of LiYF4: Ho in external magnetic fields

KN Boldyrev, MN Popova - Journal of Luminescence, 2022 - Elsevier
On the basis of the high-resolution low-temperature photoluminescence spectra of LiYF 4:
Ho crystals we discuss spectral manifestations of disorder caused by random distribution of …