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Optics and lasers

Xem 1-20 trên 145 kết quả Optics and lasers
  • In this paper, we present an in-house flexible and portable lidar system integrating an inexpensive, passively Q-switched laser Nd: YAG and a detection module operating in both analog and photon counting mode. This system is designed to study the atmospheric boundary layer (BL) and cirrus clouds (CC). The passively Q-switched Nd:YAG pulsed laser, operating at a second-harmonic generation (SHG) wavelength of 532 nm, features a pulse energy up to 200 mJ, a repetition rate of 1 Hz to 15 Hz, and a pulse duration of 15 ns.

    pdf14p dianmotminh02 03-05-2024 3 1   Download

  • The derived temperature dependences of the peak intensities, separations and half-widths of the separate spectral peaks in the A-band phonon progressions indicate the different trends for vibration-free zero-phonon electronic transition and vibration-related lower-energy electronic transitions to high vibrational levels of the ground electronic state – lower thermal damping and more softened phonon for the zero-phonon transition, also implying the extended defect origin of the A-band photoluminescence.

    pdf9p dianmotminh02 03-05-2024 3 1   Download

  • Ebook "Ultrashort laser pulses in biology and medicine" gives an overview of biological and medical applications of these laser pulses. The briefness of these laser pulses permits the tracing of the fastest processes in photo-active bio-systems, which is one focus of the book. The other focus is applications that rely on the high peak intensity of ultrashort laser pulses. Examples covered span non-linear imaging techniques, optical tomography, and laser surgery.

    pdf326p ladongphongthanh1008 22-04-2024 2 2   Download

  • Part 2 book "Introduction to quantum optics - From the semi-classical approach to quantized light" includes content: Free quantum radiation; interaction of an atom with the quantized electromagnetic field; nonlinear optics from the semi classical approach to quantum effects complement; parametric amplification and oscillation semi classical and quantum properties complement; nonlinear optics in optical kerr media; laser manipulation of atoms from incoherent atom optics to atom lasers.

    pdf325p muasambanhan10 11-04-2024 1 1   Download

  • Ebook "Structure-property relationships in non-linear optical crystals I: The UV-Vis region" is devoted to the UV-vis region and contains six review-type chapters written by seven of our faculty members who are the leading scientists in their fields. These chapters discuss the structural design and characterization of second-harmonic generation materials; the nonlinear optical properties of iodates, selenites, and tellurites; the structure, growth, nonlinear optics, and laser properties of RX3(BO3)4;...

    pdf246p coduathanh1122 27-03-2024 1 1   Download

  • Ebook "Laser photodissociation and spectroscopy of mass-separated biomolecular ions (Lecture notes in Chemistry, Volume 83)" is to introduce students and researchers to exciting developments in laser-based photodissociation of trapped biomolecular ions inside mass spectrometers. The convergence of mass spectrometry (MS) and lasers in fact draws from a rich history in mass spectroscopy in the realm of physical chemistry and chemical physics.

    pdf128p coduathanh1122 27-03-2024 1 1   Download

  • Ebook "New frontiers in photochromism" focused not only on the above-mentioned classical subjects in photochromism, such as color changes, optical memory, and optical switches, but also on fundamental physicochemical studies and unprecedented application fields that have not yet been explored in photochromism. The latter topics include light-driven mechanical motion, photocontrol of surface wettability, metal deposition on solid materials, photocontrol of chiral properties, ultrafast decoloration dyes, and femtosecond laser experiments, among others.

    pdf297p coduathanh1122 27-03-2024 3 1   Download

  • Part 2 book "Quantum optics for beginners" by author Zbigniew Ficek includes contents: Heisenberg equations of motion; dressed atom model; fokker– planck equation; quantum trajectory theory; interaction - free measurements; classical and quantum interference; atom– atom entanglement; classical and quantum lithography; laser model in the high; input– output theory; motion of atoms in a laser field.

    pdf171p muasambanhan09 16-03-2024 5 0   Download

  • Part 2 book "Classical and modern optics" includes content: Thin films; fourier analysis II, convolution, fourier optics, acousto optic diffraction, coherence, laser physics, dispersion and wave propagation, classical light–atom interactions.

    pdf187p muasambanhan07 08-02-2024 1 0   Download

  • Part 2 book "Quantum theory of the optical and electronic properties of semiconductors" includes content: Semiconductor bloch equations, excitonic optical stark effect, wave mixing spectroscopy, optical properties of a quasi equilibrium electron hole plasma, optical bistability, semiconductor laser,... and other contents.

    pdf243p muasambanhan07 18-02-2024 3 1   Download

  • Ebook "Advanced time-correlated single photon counting applications" is an attempt to bridge the gap between the instrumental principles of multi-dimensional time-correlated single photon counting (TCSPC) and typical applications of the technique. Written by an originator of the technique and by sucessful users, it covers the basic principles of the technique, its interaction with optical imaging methods and its application to a wide range of experimental tasks in life sciences and clinical research.

    pdf642p nhanphanguyet 28-01-2024 4 2   Download

  • Ebook "Adaptive beaming and imaging in the turbulent atmosphere" due to the wide application of adaptive optical systems, an understanding of optical wave propagation in randomly inhomogeneous media has become essential, and several numerical models of individual AOS components and of efficient correction algorithms have been developed. This monograph contains detailed descriptions of the mathematical experiments that were designed and carried out during more than a decade's worth of research.

    pdf211p nhanphanguyet 28-01-2024 4 2   Download

  • This energy difference can be an indicator of a compound’s excitability; the more readily a compound can be excited, the narrower the energy gap. The energy gap might be significantly affected by the influence of thermal energy. The non-linear optical (NLO) efficiency of methyl orange-doped (MOD) TBC crystals was contrasted with that of the pure form, and the doped version exhibited greater efficiency, particularly for high-frequency applications.

    pdf6p vimichaelfaraday 28-12-2023 8 6   Download

  • Part 1 book "Handbook of low-level laser therapy" includes content: What is low-level laser (light) therapy; history of low level laser (light) therapy; is coherence important in photobiomodulation, tissue optics; light–tissue interaction and light dosimetry; mitochondrial light absorption and its effect on ATP production, role of reactive oxygen species in low-level laser therapy,... and other contents.

    pdf328p muasambanhan02 25-12-2023 3 2   Download

  • This study observed and described the morphological characteristics of the endometrium of the resected uterus using confocal laser endomicroscopy. This included benign endometrium, non-atypical endometrial hyperplasia, atypical endometrial hyperplasia, and endometrial carcinoma, thereby laying a foundation for finding the precise localization and resection of endometrial lesions, given the feasibility of confocal laser endomicroscopyassisted hysteroscopy.

    pdf11p vialfrednobel 23-12-2023 7 3   Download

  • Continued part 1, part 2 of ebook "Physics of oscillations and waves: With use of Matlab and Python" provides readers with contents including: Chapter 10 - Reflection, transmission and polarization; Chapter 11 - Measurements of light, dispersion, colours; Chapter 12 - Geometric optics; Chapter 13 - Interference diffraction; Chapter 14 - Wavelet transform; Chapter 15 - Coherence, dipole radiation and laser; Chapter 16 - Skin depth and waveguides;...

    pdf280p dangsovu 20-10-2023 8 5   Download

  • Part 1 book "Parsons’ diseases of the eye" includes content: Anatomy of the eye, physiology of the eye, the physiology of vision, the neurology of vision, elementary optics and optical system of the normal eye, clinical refraction and refractive errors, clinical history taking and interpretation of symptoms, clinical examination, ocular therapeutics and lasers, diseases of the conjunctiva, diseases of the cornea, diseases of the sclera.

    pdf535p oursky02 07-08-2023 3 2   Download

  • Direct laser writing (DLW) lithography has been growing rapidly and is widely used for photonic integrated circuit (PIC) fabrication manufacturing in micro optics and photonics to fabricate 2D, 2.5D, and 3D components due to low cost, high precision and no need for mask exposure.

    pdf6p viberbers 09-08-2023 5 3   Download

  • Conventional rigid optical-electronic systems need to be improved to adapt to the current food quality monitoring. This paper aims to propose and develop a flexible wearable optical wireless sensing system (FWOS) by laser ablation of polyethylene terephthalate/polyimide/copper (PET/PI/Cu) film.

    pdf8p viberbers 09-08-2023 4 3   Download

  • Microstructural, optical, AC dielectric impedance, and conductivity properties of pure PVA and PVA: NaSe SCF samples doped with various NaSe salt fillers were investigated. The XRD study confirmed the semicrystalline structure of the PolVA:NaSe SCF samples which explicated the semi-crystalline nature of the pure PolVA as a matrix.

    pdf10p viberbers 09-08-2023 3 3   Download

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