Integration and Applications of Nanomaterials for Ultrafast Photonics (Laser Photonics Rev. 16(11)/2022)

Zhao, Xiaoli; Jiang, Hong; Liu, Jiayao; Chao, Jiale; Liu, Tingyi; Wang, Gang; Lyu, Wenhao; Wageh, S.; Al‐Hartomy, Omar A.; Al‐Sehemi, Abdullah G.; Fu, Bo; Zhang, Han

doi:10.1002/lpor.202270056

Cited by 6 publications

(9 citation statements)

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“…The D-shaped fibers have a thick core, so it has good robustness. High-quality D-shaped fibers can be obtained by simple polishing techniques, but this also leads to more polarizationdependent loss [52,53]. Tapered fibers avoid this drawback by controlling the length of the tapered melt zone to modify the nonlinear absorption effect.…”

Section: Evanescent Field Interactionmentioning

confidence: 99%

“…Some nanomaterials have the advantages of nonlinear optical properties and fast response time, qualifying themselves as excellent SAs in lasers. As an alternative to artificial SAs such as the SESAM, nanomaterials as real SAs have wider bandwidth and lower manufacturing cost [53,54]. Therefore, an increasing number of tunable lasers reported in the past few years adopted nanomaterials as SAs to achieve passively mode-locked pulses.…”

Section: Applications Of Nanomaterials In Wavelengthtunable Broadband...mentioning

confidence: 99%

“…Lasers can be classified into several types based on their working media: gas laser, liquid laser, solid-state laser, semiconductor laser, fiber laser, and free-electron laser. Among them, fiber lasers are widely studied due to their compact and stable structure, which facilitate research on Q-switched and mode-locked lasers [7]. The realization methods of Q-switched and mode-locked techniques can be divided into active and passive ones.…”

Section: Introductionmentioning

confidence: 99%

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Wavelength-tunable broadband lasers based on nanomaterials

Zhang,

et al. 2023

Nanotechnology

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Nanomaterials are widely used in the fields of sensors, optoelectronics, biophotonics and ultrafast photonics due to their excellent mechanical, thermal, optical, electrical and magnetic properties. Particularly, owing to their nonlinear optical properties, fast response time and broadband operation, nanomaterials are ideal saturable absorption materials in ultrafast photonics, which contribute to the improvement of laser performance. Therefore, nanomaterials are of great importance to applications in wavelength-tunable broadband pulsed lasers. Herein, we review the integration and applications of nanomaterials in wavelength-tunable broadband ultrafast photonics. Firstly, the two integration methods, which are direct coupling and evanescent field coupling, and their characteristics are introduced. Secondly, the applications of nanomaterials in wavelength-tunable broadband lasers are summarized. Finally, the development of nanomaterials and broadband tunable lasers is reviewed and discussed.

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Section: Evanescent Field Interactionmentioning

confidence: 99%

Section: Applications Of Nanomaterials In Wavelengthtunable Broadband...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wavelength-tunable broadband lasers based on nanomaterials

Zhang,

et al. 2023

Nanotechnology

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“…Vicario, C et al groups investigated the high-field THz generation in organic crystals DSTMS, DAST, and OH1 by optical rectification process using femtosecond Cr: fosterite laser pulse at 10 Hz repetition and they have achieved maximum conversion efficiency as high as 3% which corresponds to energy per pulse up to 270 μJ [15]. Whereas, Zhang B et al reported highest energy of the order of 1.4 mJ terahertz radiation from a Lithium Niobates crystal [16]. In addition, GaSe which is one of the oldest nonlinear single crystal and attracted researchers for improvising its optical and surface hardness properties using different types of dopants.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, dielectric property of GaSe: S was measured using time-domain THz spectroscopy [18,19]. The GaSe:S can be treated as one of the suitable alternatives of LiNbO 3 and ZnTe crystals for the generation of THz radiation in the laboratory [16,31]. The first one is used for strong THz generation but possesses big difference between their optical and THz refractive indices which drastically reduces the coherence length of the LiNbO 3 and not preferred for the detection purpose.…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of terahertz-based optical properties in transmission/reflection modes of GaSe: S and measurement of its scattering losses due to surface roughness for efficient terahertz generation

Ghorui¹,

Arjun²,

Kumar³

et al. 2023

Phys. Scr.

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The paper reports the efficient terahertz generation using nonlinear optical rectification process and comparative studies of optical, dielectric, and surface scattering properties of 1.0 mm thin GaSe: S crystal in transmission/reflection modes. We employed 800 nm wavelength of 140 fs and 50 fs pulse durations obtained from Ti: Sapphire oscillator and amplifier systems at 80 MHz and 1 kHz repetition rates, respectively, and evaluated the THz generation potential and optical properties such as refractive index, absorption coefficients, relative permittivity in transmission mode. In the next step, the crystal was subjected to a commercial THz system of 0.3 picosecond pulses at 100 MHz repetition rate in reflection geometry and once again recorded the similar parameters and compared with the transmission mode data. In addition, these data were used to measure the scattering losses from the surface of the crystal in terms of surface roughness, optical impedance, and Fresnel’s reflection coefficients. The maximum generated THz power was of the order of 4.5 μW with conversion efficiency (η) ~2.2 x 10-3%. The measured THz efficiency was found equivalent to 20 mm thick GaSe crystal used in the difference frequency mixing technique. Finally, we have measured the Rayleigh roughness factor (g) of the crystal surface at different THz frequencies. When g < 1 (for small roughness) the Fresnel reflection loss factor becomes 0.75 at 1.4 THz frequency range which helps to enhance the generated signal.

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Passively mode-locked fiber lasers dynamic behavior by multimode fiber polarization controller

Li,

et al. 2023

Infrared Physics & Technology

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Integration and Applications of Nanomaterials for Ultrafast Photonics (Laser Photonics Rev. 16(11)/2022)

Cited by 6 publications

References 0 publications

Wavelength-tunable broadband lasers based on nanomaterials

Wavelength-tunable broadband lasers based on nanomaterials

Comparative studies of terahertz-based optical properties in transmission/reflection modes of GaSe: S and measurement of its scattering losses due to surface roughness for efficient terahertz generation

Passively mode-locked fiber lasers dynamic behavior by multimode fiber polarization controller

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