Nonlinear optical properties of two-dimensional palladium ditelluride (PdTe2) and its application as aerosol jet printed saturable absorbers for broadband ultrafast photonics

Cheng, Ping; Ahmed, Syed M.; Qiao, Jian‐Tian; Wong, Lok Wing; Yuen, Chun Fai; Saleque, Ahmed Mortuza; Ivan, Md. Nahian Al Subri; Hani, Sumaiya Umme; Hossain, Mohammad Ismail; Zhao, Jiong; Qiao, Wen

doi:10.1016/j.apmt.2021.101296

Cited by 23 publications

(17 citation statements)

References 66 publications

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“…The CA Z -scan experiment was also performed for two different wavelengths of 1066 and 1560 nm, respectively, as demonstrated in Figure S15 (Supporting Information). By using eq , the experimental results are fitted with, where ΔΦ is the nonlinear phase shift value . From eq , the value of ΔΦ can be determined, where n 2 is the nonlinear refractive index, λ c is the central wavelength, I 0 is the peak intensity at the focus, and L eff is the effective length.…”

Section: Resultsmentioning

confidence: 99%

“…By using eq 3, the experimental results are fitted with, where ΔΦ is the nonlinear phase shift value. 61 From eq 4, the value of ΔΦ can be determined, where n 2 is the nonlinear refractive index, λ c is the central wavelength, I 0 is the peak intensity at the focus, and L eff is the effective length. Furthermore, the nonlinear refraction response without the nonlinear absorption effect was determined by measuring the values of n 2 from CA/OA Z-scan results.…”

Section: Resultsmentioning

confidence: 99%

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Nonlinear Optical Activities in Two-Dimensional Gallium Sulfide: A Comprehensive Study

et al. 2022

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The nonlinear optical (NLO) properties of two-dimensional (2D) materials are fascinating for fundamental physics and optoelectronic device development. However, relatively few investigations have been conducted to establish the combined NLO activities of a 2D material. Herein, a study of numerous NLO properties of 2D gallium sulfide (GaS), including second-harmonic generation (SHG), two-photon excited fluorescence (TPEF), and NLO absorption are presented. The layer-dependent SHG response of 2D GaS identifies the noncentrosymmetric nature of the odd layers, and the second-order susceptibility (χ2) value of 47.98 pm/V (three-layers of GaS) indicates the superior efficiency of the SHG signal. In addition, structural deformation induces the symmetry breaking and facilitates the SHG in the bulk samples, whereas a possible efficient symmetry breaking in the liquid-phase exfoliated samples results in an enhancement of the SHG signal, providing prospective fields of investigation for researchers. The generation of TPEF from 800 to 860 nm depicts the two-photon absorption characteristics of 2D GaS material. Moreover, the saturable absorption characteristics of 2D GaS are realized from the largest nonlinear absorption coefficient (β) of −9.3 × 103, −91.0 × 103, and −6.05 × 103 cm/GW and giant modulation depths (T s ) of 24.4%, 35.3%, and 29.1% at three different wavelengths of 800, 1066, and 1560 nm, respectively. Hence, such NLO activities indicate that 2D GaS material can facilitate in the technical advancements of future nonlinear optoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Nonlinear Optical Activities in Two-Dimensional Gallium Sulfide: A Comprehensive Study

et al. 2022

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“…In addition, the dissipative solitons in fiber lasers have incomparable advantages over conventional solitons in terms of breaking through the pulse energy limit . Dissipative soliton generation in fiber lasers has been experimentally achieved using passive mode-locking technology, effectively utilizing the saturable absorber (SA) technique, which induces numerous longitudinal modes to phase oscillation by ultrafast carrier excitation and the recombination processes, and therefore generates periodical ultrashort pulse sequences in the timescale. , Generally, the advance of SA design is primarily based on the development of materials that exhibit saturable absorption behaviors. − To date, several promising materials with intensity-dependent absorption have been used as SAs to obtain mode-locked soliton pulses. , Owing to their optical nonlinearity, these SAs are capable of periodically modulating and controlling the circulating light wave in the fiber cavity. So far, low-dimensional materials, such as two-dimensional (2D), one-dimensional (1D), and zero-dimensional (0D) materials have received significant attention as SAs in ultrashort laser pulse formation research because of the strong nonlinear optical response, adjustable bandgap, low fabrication cost, remarkable light modulation ability, and good fiber compatibility, which provide good prospects for the development of ultrafast fiber lasers. − In particular, 2D materials possessing powerful covalent bonds within layers and weak interlayer van der Waals forces are the mostly investigated and studied SA materials due to their distinct structure and physical characteristics.…”

Section: Introductionmentioning

confidence: 99%

GaSb Film is a Saturable Absorber for Dissipative Soliton Generation in a Fiber Laser

Pang

Meng

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

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Nanotechnology is at the forefront of scientific research and offers great prospects for the development of technology. As a type of III-V semiconductor, GaSb materials exhibit numerous outstanding optical and electrical characteristics that are very promising for nonlinear optical device applications. In this study, the electronic band structures of GaSb are theoretically calculated, and its application in dissipative soliton fiber lasers is validated. A GaSb thin film is deposited on a microfiber using magnetron sputtering deposition, and the morphology, chemical composition, structure, and nonlinear optical characteristics of the proposed microfiber−GaSb device are investigated. After incorporating it into an Er-doped fiber laser, dissipative soliton laser pulses are readily obtained with a fundamental frequency of 43.5 MHz. With increasing pump power, the fiber laser could work in the fundamental frequency mode-locking state. At a pump power of 570 mW, the pulse width and the output power are measured to be 917 fs and 49.75 mW, separately. These results reveal that GaSb can be used as an efficient saturable absorber, which will have potential applications in ultrafast optics.

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“…Among them, lithography needs expensive equipment; inkjet printing encounters some challenges such as the low resolution (line width larger than 20 µm) and the limited viscosity or improper surface tension of the jet ink; aerosol jet printing should be accompanied by gas flow. [1][2][3][4][5][6] E-jet printing is a facile and robust method which has been applied in many areas such as electronic industry, optics, or biology. The method has some prominent advantages such as high resolution, low cost, the ability to jet the solutions with high viscosity, noncontact, resolution without limits by the nozzle diameter, driven by high-voltage electric field, and fine pattern accuracy.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Electronics by Electrohydrodynamic Jet Printing

Zhou

Song

2022

Adv Elect Materials

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Electrohydrodynamic jet (e‐jet) printing technology overcomes some limitations such as the viscosity and resolution of the traditional ink‐jet printing by breaking surface tension of the droplets with high voltage and the formation of Taylor cone. The technique is becoming more and more popular because it can be widely used in the fabrication of the conductive line of electronics, electrode, transistor, sensor, and other electronics as microelectrode, microlen, and heater. This review provides insight into the effect of the influence factors such as voltage, speed, nozzle, jetting ink characteristics, and the representative conductive materials of the ink as metal nanoparticles (NPs) and carbon materials, or organic conductive polymers on the fabrication of the different electronics by the e‐jet printing technology. Specially, the characteristics of different resultant electronics are compared and the possible mechanisms are analyzed. Finally, the challenge and development trend of the e‐jet printing technology are discussed, which will shed a light on the fabrication of the next‐generation flexible electronics with better performance.

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Nonlinear optical properties of two-dimensional palladium ditelluride (PdTe2) and its application as aerosol jet printed saturable absorbers for broadband ultrafast photonics

Cited by 23 publications

References 66 publications

Nonlinear Optical Activities in Two-Dimensional Gallium Sulfide: A Comprehensive Study

Nonlinear Optical Activities in Two-Dimensional Gallium Sulfide: A Comprehensive Study

GaSb Film is a Saturable Absorber for Dissipative Soliton Generation in a Fiber Laser

Fabrication of Electronics by Electrohydrodynamic Jet Printing

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