A review on the development of optical limiters from homogeneous to reflective 1-D photonic crystal structures

Gadhwal, Reena; Devi, Ambika

doi:10.1016/j.optlastec.2021.107144

Cited by 22 publications

(9 citation statements)

References 174 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optical limiters have been actively researched and published since the 1980s. Review papers covering decades of optical limiter research can be found online [ 12 , 13 ], and most recently by Gadhwal [ 14 ]. However, only limited published results of optical limiters actually demonstrated for sensor protection can also be found online because this is a topic area that could be considered sensitive.…”

Section: Discussionmentioning

confidence: 99%

Visible-Band Nanosecond Pulsed Laser Damage Thresholds of Silicon 2D Imaging Arrays

Westgate

James

2022

Sensors

View full text Add to dashboard Cite

Laser-induced camera damage thresholds were measured for several sensors of three different sensor architectures using a Q-switched Nd:YAG laser in order to determine their pulsed laser-induced damage thresholds. Charge coupled device (CCD), front-side illuminated complimentary metal-oxide semiconductor (FSI CMOS), and back-side illuminated (BSI) CMOS sensors were assessed under laboratory and outdoor environments by increasing the focused laser intensity onto the sensors and recording the sensor output. The damage sites were classified qualitatively into damage types, and pixel counting methods were applied to quantitatively plot damage scale against laser intensity. Probit-fits were applied to find the intensity values where a 95% probability of damage would occur (FD95) and showed that FD95 was approximately the same under laboratory conditions for CCD, FSI CMOS, and BSI CMOS sensors (mean 532 nm FD95 of 0.077 ± 0.01 Jcm−2). BSI CMOS sensors were the most robust to large-scale damage effects—BSI sensor kill was found at approximately 103 Jcm−2, compared to 10 Jcm−2 for FSI CMOS, and between ~1.6 and 2.7 Jcm−2 for CCDs.

show abstract

Section: Discussionmentioning

confidence: 99%

Visible-Band Nanosecond Pulsed Laser Damage Thresholds of Silicon 2D Imaging Arrays

Westgate

James

2022

Sensors

View full text Add to dashboard Cite

show abstract

“…Particularly, materials with sufficient third-order susceptibility, χ (3) , are very attractive because they give rise to a variety of useful properties such as self-focusing [1], two-photon absorption [2], and third-harmonic generation [3]. These phenomena have found a wide range of applications such as ultrafast optical switching [4], imaging and optical signal amplification [5], and optical power limiting [6]. Therefore, great effort has been devoted to the search for new material with appreciable thirdorder nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

Effect of water salinity on the focal tuning of an injected liquid lens used to modify the z-scan method

Shahsavand,

Karimarji,

Khorsandi

2024

J. Opt.

View full text Add to dashboard Cite

A water-injected liquid lens is fabricated to tune its focal length using the change of water salinity. It is found that when the salinity of water is changed from zero to 34.25%, the focal length can be changed by about 12.6 mm from 73.7 mm to 86.3 mm. A focal length resolution of approximately 0.75×10-2 mm and a high temporal stability over a long period have been achieved for the lens foci. This lens is then used to modify the z-scan technique where the lens and the sample are both remained fixed without displacement. The performance of the fabricated lens is evaluated by nonlinear refractive index measurement of a sample containing 10.82-pH-syntesized Silver nanoparticles (AgNPs) suspended in water with 15 mM of concentration. For verification of the results, nonlinear refraction index of (-10.6±1.0)×10-7 cm2/W is firstly measured for the sample using a classical z-scan benefiting from conventional focal-fixed lens. Interestingly, we found out that when the fabricated lens if replaced in the modified z-scan, the nonlinear refraction index of about (-8.1±0.2)×10-7 cm2/W can be measured, indicating a similarity in the order and small difference in the coefficient compared to the classical z-scan. This outcome highlights the potential capability and simplicity of the fabricated lens in the modification of classical z-scan technique.

show abstract

“…This paper is focused on the realization of optical filters for optical limiting applications 23,24 . Here results are centered on nonlinear phenomena occurring in filters using the z‐scan method.…”

Section: Introductionmentioning

confidence: 99%

“…22 This paper is focused on the realization of optical filters for optical limiting applications. 23,24 Here results are centered on nonlinear phenomena occurring in filters using the z-scan method. This method has been developed by Sheik Bahae in 1989 25,26 and is easy to implement.…”

Section: Introductionmentioning

confidence: 99%

Thermoset polymers as host for optical limiting

Caillieaudeaux,

Muller,

Guerchoux

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

The human eye, sensors, and photoreceptors can be damaged if they are submitted to laser beams with high intensities and low divergence. In the military field, an optical sensor can be damaged by pulsed laser radiations when exposed beyond its capacities. In order to have a protection against such threats, passive optical limiting is used. A mix between a reactive oligomer and a monomer, with methacrylate functions, is studied in the present work giving a thermoset matrix. To prevent the monomer evaporation, which results in the formation of bubbles in the final material, related to the reaction exotherm, an oligomer and a monomer with a high boiling temperature are used as precursors, giving a good alternative to a thermoplastic matrix like polymethyl methacrylate (PMMA). We report the experimental results of transient thermally induced optical nonlinearities (i.e., nonlinear refraction) in methacrylate‐based polymer filters at a nanosecond timescale, focus will be made to compare third order nonlinear refractive index from thermally induced refractive index. Optical filters are obtained by chemical bulk processes. In the present work, both thermoplastics and thermosets matrices were synthesized in order to characterize their optical limiting properties by mean of an appropriate custom‐made optical setup as well as their nonlinear refractive indices measured by the z‐scan technique. Optical measurements in the nonlinear regime are achieved at the wavelength of 1064 nm. To the best of the authors’ knowledge, such a work dealing on 3D‐network methacrylate‐based host has never been published.

show abstract

A review on the development of optical limiters from homogeneous to reflective 1-D photonic crystal structures

Cited by 22 publications

References 174 publications

Visible-Band Nanosecond Pulsed Laser Damage Thresholds of Silicon 2D Imaging Arrays

Visible-Band Nanosecond Pulsed Laser Damage Thresholds of Silicon 2D Imaging Arrays

Effect of water salinity on the focal tuning of an injected liquid lens used to modify the z-scan method

Thermoset polymers as host for optical limiting

Contact Info

Product

Resources

About