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Optical bistability in an M-type atomic system m型原子系统的光学双稳性
IF 0.8 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-09-04 DOI: 10.1007/s10946-025-10244-7
Hossein Jafarzadeh
{"title":"Optical bistability in an M-type atomic system","authors":"Hossein Jafarzadeh","doi":"10.1007/s10946-025-10244-7","DOIUrl":"10.1007/s10946-025-10244-7","url":null,"abstract":"<div><p>We analyze the optical bistability (OB) and absorption properties of a weak probe field in a five-level M‑type atomic system confined in a unidirectional ring cavity. We find that the threshold of OB and the absorption of the probe field in the M‑type atomic system can be controlled by adjusting the intensity and the detuning of the coupling fields. Finally, by comparison with previous results in <span>(Lambda)</span>- and N‑type atomic systems under similar conditions, we show that the OB threshold in this case is lower than that for <span>(Lambda)</span>- and N‑types.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 5","pages":"557 - 564"},"PeriodicalIF":0.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the operation of eye-safe radiation sources based on OPOs taking into account pump depletion 基于考虑泵耗竭的opo的眼安全辐射源运行分析
IF 0.8 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-09-04 DOI: 10.1007/s10946-025-10240-x
Rena J. Kasumova
{"title":"Analysis of the operation of eye-safe radiation sources based on OPOs taking into account pump depletion","authors":"Rena J. Kasumova","doi":"10.1007/s10946-025-10240-x","DOIUrl":"10.1007/s10946-025-10240-x","url":null,"abstract":"<div><p>We propose a method for calculating parameters of the eye safe parametric converter, considering the largest number of factors existing under real conditions and a limit of the conversion efficiency. We present the results of a theoretical study of single-cavity parametric generation in depleted pump approximation, where it is possible to simultaneously consider the influence of the intensity of the idler wave, the phase mismatch between interacting waves, losses on mirrors during reflection, as well as absorption in a nonlinear medium. When analyzing in the constant intensity approximation (CIA), in contrast to the constant field approximation (CFA), an additional term <span>(Gamma_{i}^{2}sim I_{i0})</span> appears, which leads to increase in the threshold pump intensity. We present a numerical estimate of the threshold intensity for KTP along with a comparison with the experiment. The results hint at a research method that holds promise for the development of efficient parametric frequency converters for visual observation of biological objects and in medical research.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 5","pages":"524 - 535"},"PeriodicalIF":0.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser mode-locking photon-crystal enhancer 激光锁模光子晶体增强器
IF 0.8 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-09-04 DOI: 10.1007/s10946-025-10243-8
Peter P. Vasil’ev
{"title":"Laser mode-locking photon-crystal enhancer","authors":"Peter P. Vasil’ev","doi":"10.1007/s10946-025-10243-8","DOIUrl":"10.1007/s10946-025-10243-8","url":null,"abstract":"<div><p>We consider the impact of a photon crystal (PC) element on mode locking in a laser. We show that placing of an additional PC in an actively/passively mode-locked laser results in the enhancement of the mode-locking effect. The effect is demonstrated on a passively mode-locked ring cavity laser using a numerical model. We show that the laser generates a few times shorter and almost an order of magnitude more powerful pulses due to the PC element.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 5","pages":"550 - 556"},"PeriodicalIF":0.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An auxiliary liquid modulated PCF-LSPR sensor with an adjustable wide detection range and high Ri sensitivity 具有可调宽探测范围和高Ri灵敏度的辅助液体调制PCF-LSPR传感器
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-13 DOI: 10.1007/s10946-024-10232-3
Sihang Lin, Pengxiang Chang, Ailing Zhang, Yanmei Shi, Honggang Pan, Fei Liu, Junfeng Wang, Pengxia Sui, Guangxiao Cao, Nan Cui, Yongning Zhang
{"title":"An auxiliary liquid modulated PCF-LSPR sensor with an adjustable wide detection range and high Ri sensitivity","authors":"Sihang Lin,&nbsp;Pengxiang Chang,&nbsp;Ailing Zhang,&nbsp;Yanmei Shi,&nbsp;Honggang Pan,&nbsp;Fei Liu,&nbsp;Junfeng Wang,&nbsp;Pengxia Sui,&nbsp;Guangxiao Cao,&nbsp;Nan Cui,&nbsp;Yongning Zhang","doi":"10.1007/s10946-024-10232-3","DOIUrl":"10.1007/s10946-024-10232-3","url":null,"abstract":"<div><p>In this paper, an auxiliary liquid modulated photonic crystal fiber (PCF) refractive index (RI) sensor based on local surface plasmon resonance (LSPR) is proposed, featuring an adjustable wide detection range and high RI sensitivity. The modulation of the electric field intensity distribution within the PCF is achieved by filling specific air holes with auxiliary liquid, leading to improved properties of the PCF-LSPR sensor. Moreover, the detection range of the sensor can be tailored by adjusting the RI of the auxiliary liquid. Using the full-vector finite element method (FEM), simulations of sensor performance are conducted. Results demonstrate that with an auxiliary liquid RI of 1.41, the sensor achieves a maximum RI sensitivity of 52438.02 nm/RIU and a detection range of 1.27–1.41. Similarly, with an auxiliary liquid RI of 1.43, the sensor achieves a maximum RI sensitivity of 46611.18 nm/RIU and maintains a detection range of 1.23–1.41. This approach allows for customization without altering the sensor geometry, facilitating the adjustment of the auxiliary liquid RI based on specific sensing requirements. Consequently, it offers tailored solutions for various sensing needs, thereby expanding the potential applications of PCF-LSPR sensors.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"444 - 453"},"PeriodicalIF":0.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilizing black phosphorus as a Q-switcher in Nd-doped fiber laser system 利用黑磷作为掺nd光纤激光系统的调q器
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10229-y
Turki Ali Alghamdi, Hamzah Arof, Sulaiman Wadi Harun
{"title":"Utilizing black phosphorus as a Q-switcher in Nd-doped fiber laser system","authors":"Turki Ali Alghamdi,&nbsp;Hamzah Arof,&nbsp;Sulaiman Wadi Harun","doi":"10.1007/s10946-024-10229-y","DOIUrl":"10.1007/s10946-024-10229-y","url":null,"abstract":"<div><p>We successfully develop a pulsed fiber laser, operating at 1088 nm, by utilizing a neodymium-doped fiber (NDF) as the gain medium and black phosphorus (BP) material as a saturable absorber (SA). We construct the SA by transferring multilayer BP material onto a fiber ferrule tip via mechanical exfoliation, subsequently integrated into an NDFL ring cavity to modulate the cavity loss and generate <i>Q</i>-switched pulses. Notably, as the 808 nm pumping power increases from 44.7 to 90.6 mW, the laser’s output pulse duration decreased from 15.1 to 10.6 µs, while the repetition rate increases from 21.93 to 42.92 kHz. Demonstrating stable pulse train output, the laser exhibits a fundamental frequency with a signal to background noise ratio of 35 dB. This pioneering work represents the first report to employ BP as SA within an NDFL cavity.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"422 - 428"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Irreducible Lie su(2) algebra representations in terms of probability distribution functions 用概率分布函数表示不可约李苏(2)代数
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10228-z
Olga V. Man’ko
{"title":"Irreducible Lie su(2) algebra representations in terms of probability distribution functions","authors":"Olga V. Man’ko","doi":"10.1007/s10946-024-10228-z","DOIUrl":"10.1007/s10946-024-10228-z","url":null,"abstract":"<div><p>Using spin-1/2 state (qubit state) description by the conditional probability distributions of dichotomic random variables, we construct the irreducible Lie <i>su</i>(2) algebra representations by means of the probability distribution functions. We obtain explicit 2×2-matrices of the Lie algebra elements and express them in terms of Pauli matrices. Then we discuss the possibility to obtain the probability representation of arbitrary Lie algebra, using the symmetry Lie group of quantum system states. Finally, we write Pauli matrices in the probability representation of dichotomic random variables.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"411 - 421"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chaotic dynamics of cold atoms in multidimensional optical lattices 多维光学晶格中冷原子的混沌动力学
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10226-1
Sergey V. Prants
{"title":"Chaotic dynamics of cold atoms in multidimensional optical lattices","authors":"Sergey V. Prants","doi":"10.1007/s10946-024-10226-1","DOIUrl":"10.1007/s10946-024-10226-1","url":null,"abstract":"<div><p>Optical lattices, created by interfering laser beams, are efficient tools to manipulate cold atoms by adjusting the lattice geometry and parameters. A number of dynamical effects has been studied with cold atoms in one-dimensional optical lattices in classical, quantum, and semiclassical regimes. Recently, it has been shown that multi-dimensional optical lattices may lead to deeply different dynamics of non-interacting atoms allowing us to investigate the quantum–classical correspondence. We discuss the recent progress in studying classical, semiclassical, and quantum chaotic dynamics of cold atoms in two-dimensional and three-dimensional optical lattices with non-trivial geometry. The special attention is paid to classical versus quantum dynamics of atoms with the coupling between the internal and translational degrees of freedom. The dynamical mechanisms of transition to chaos and inhibition of the onset of chaos for atoms trapped inside wells of the optical potential and moving between different wells are discussed. We propose the experimental schemes that could distinguish between the regular and chaotic dynamics. The perspectives for observation of quantum chaos with cold atoms, that is the quantum regime of a system, whose classical dynamics is chaotic, are considered.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"395 - 403"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolution of two correlation edge dislocations carried by partially coherent beams in oceanic turbulence 海洋湍流中部分相干光束携带的两个相关边缘位错的演化
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10225-2
Haitao Chen, Qiang Li, Zenghui Gao, Yang Xiang
{"title":"Evolution of two correlation edge dislocations carried by partially coherent beams in oceanic turbulence","authors":"Haitao Chen,&nbsp;Qiang Li,&nbsp;Zenghui Gao,&nbsp;Yang Xiang","doi":"10.1007/s10946-024-10225-2","DOIUrl":"10.1007/s10946-024-10225-2","url":null,"abstract":"<div><p>Besides the correlation vortices, the correlation edge dislocation of partially coherent beams is shown to be in existence. The analytical expression of the cross-spectral density (CSD) for the Gaussian Schell-model (GSM) beams with two correlation edge dislocations propagating through oceanic turbulence is derived, which is used to study the interaction of them in free space and oceanic turbulence. It is shown that the correlation edge dislocations are generally unstable and easy to vanish, while correlation vortices or correlation edge dislocation may appear with propagation. The interaction is influenced by the propagation distance and parameters, such as the spatial correlation length, the off-axis distances, and the slope of the edge dislocations. Besides, the oceanic turbulence parameters affect the appearance, position and number of correlation singularities in the fields. The stronger oceanic turbulence, the faster the decrease of the distance for the first reappearance of the correlation vortices.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"377 - 387"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theoretical study of composite cavity fiber MZI refractive index sensor based on transverse offset structure 基于横向偏移结构的复合腔光纤MZI折射率传感器的理论研究
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10237-y
Yuxuan Qi, Yanjie Zhao, Ying Chen, Yubo Liu, Jiacheng Lv, Jiasheng Ni
{"title":"Theoretical study of composite cavity fiber MZI refractive index sensor based on transverse offset structure","authors":"Yuxuan Qi,&nbsp;Yanjie Zhao,&nbsp;Ying Chen,&nbsp;Yubo Liu,&nbsp;Jiacheng Lv,&nbsp;Jiasheng Ni","doi":"10.1007/s10946-024-10237-y","DOIUrl":"10.1007/s10946-024-10237-y","url":null,"abstract":"<div><p>In this paper, we present a Mach–Zehnder interferometer (MZI) sensor utilizing an optical fiber offset. The sensor core comprises multimode fiber (MMF), single-mode fiber (SMF), and offset no-core fiber (NCF), enabling it to detect the refractive index (RI) of liquids. The sensing mechanism of the sensor is theoretically analyzed, and various structural parameters are simulated, using the Beam Propagation Module (BPM). Simulation results indicate that the sensor efficiently operates across the entire wavelength range of 1.5–1.61 µm, providing continuous calibration curves for RI measurement. The sensor sensitivity to RI ranges of 1.3330–1.3340, 1.3334–1.3335, 1.3530–1.3540, and 1.3630–1.3640 are –14342, –14700, –17628, and –19600 nm/RIU, respectively. Additionally, the sensor exhibits a favorable linear response, laying a crucial foundation for developing the high-sensitivity liquid RI sensor design. The sensor boasts a simple, compact design, high sensitivity, and significant application potential in liquid RI measurements.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"490 - 499"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The difference logical operation for images in accumulated echo holography 累积回波全息图像的差分逻辑运算
IF 0.7 4区 物理与天体物理
Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10235-0
E. N. Akhmedshina, A. R. Sakhbieva, L. A. Nefediev, Y. A. Nefedyev, A. O. Andreev
{"title":"The difference logical operation for images in accumulated echo holography","authors":"E. N. Akhmedshina,&nbsp;A. R. Sakhbieva,&nbsp;L. A. Nefediev,&nbsp;Y. A. Nefedyev,&nbsp;A. O. Andreev","doi":"10.1007/s10946-024-10235-0","DOIUrl":"10.1007/s10946-024-10235-0","url":null,"abstract":"<div><p>In this paper, we consider an implementation of the difference logical operation on sets represented as images in the accumulated photon echo mode. We show that this operation can be performed in the presence of a phase difference between pairs of exciting laser pulses.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"478 - 482"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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