Broadband Guidance in a Hollow-Core Photonic Crystal Fiber With Polymer-Filled Cladding

Markos, Christos; Antonopoulos, G.; Kakarantzas, G.

doi:10.1109/lpt.2013.2280817

Cited by 32 publications

(20 citation statements)

References 30 publications

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“…Although the first organosilicon was first synthesized over one hundred years ago [1], it is only in the last 20 years that polymeric organosilicon compounds -such as polydimethylsiloxane (PDMS) -have found applications in areas such as flexible electronics [2][3][4][5][6], moulding and soft lithography [7][8][9]11,[11][12][13][14], microelectromechanical systems (MEMS) [15][16][17], self-healing materials [18], laboratory-on-a-chip and microfluidics [19][20][21][22][23], photonics [24,25]. The physical and chemical properties of PDMS, such as its usability over a wide temperature range (T ∈[−100, 200] • C), its flexibility (Elastic modulus E ≈ 1 MPa [26]), its low chemical reactivity as well as its relatively hydrophilic behavior, its transparent nature, its biocompatibility [27], its low cost, etc.…”

Section: Introductionmentioning

confidence: 99%

Extended PDMS stiffness range for flexible systems

Seghir

Arscott

2015

Sensors and Actuators A: Physical

147

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a b s t r a c tThe use of polymers in the context of flexible systems such as flexible sensors leads to an incompatibility issue: on the one hand, the flexibility of the polymer must not be to the detriment of the fabrication process, e.g. excessive thermal expansion leading to process failure and on the other hand, certain applications will require high flexibility and also a specific mechanical stiffness, e.g. artificial skin, smart clothes, flexible screen. In other words, a compromise is necessary between rigidy for processing and controlled flexibility for applications. In this context it is crutial to be able to tune the mechanical properties of such polymers. Polydimethylsiloxane (PDMS) is a very versatile and useful soft polymeric material -Elastic modulus typically ≈1 MPa. This paper investigates the stiffness tunability of PDMS by varying the hardening agent to PDMS base ratio over 19:1 to 2:1, and using two extreme curing processes, i.e. 120 min at 100 • C and 2 days at 165 • C. It was observed that the stiffness of PDMS can be accurately controlled from 800 kPa to 10 MPa with a rupture limit higher than 20%. To our knowledge this is the highest reported elastic modulus in PDMS by combining mixing ratio and curing temperature. The impact of such a stiffness variation on potential functional properties such as the rupture limit, Poisson's ratio and material's wetting contact angle is also analysed. We observe that the wetting contact angle depends on the bulk mechanical properties of the PDMS. The observations will be of use to all technological communities who are engaged in using PDMS-type polymers for their specific applications.

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Section: Introductionmentioning

confidence: 99%

Extended PDMS stiffness range for flexible systems

Seghir

Arscott

2015

Sensors and Actuators A: Physical

147

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“…Moreover it has good mechanical properties due to low Young's modulus which makes it soft and deformable with very low shrinkage and combined with its ease fabrication procedure is a potential active material for tunable devices and sensing applications. PDMS has been already combined with silica PCFs for thermo-tunable devices and sensors [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Multimaterial photonic crystal fibers

Markos¹,

Petersen²

2018

Optical Components and Materials XV

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One of the main advantages of photonic crystal fibers (PCFs) is their ability to host novel functional materials in the airholes of the cladding. Here, we demonstrate a unique post-processing method which allows the integration of materials with significantly different thermo-mechanical properties inside the voids of silica PCF. We first present the material properties of silica, As 2 Se 3 and polydimethylsiloxane (PDMS) in terms of their refractive indices and viscosity profile. The latter suggests that the proposed materials are not suitable for direct fiber drawing and thus we present the development of a multi-material As 2 Se 3 /PDMS/Silica PCF based on a solution-processed and pressure-assisting method. The integration of both As 2 Se 3 chalcogenide glass films and PDMS was made in ambient conditions using a costeffective approach. The deposition of the high-index chalcogenide glass films revealed distinct resonances in the visible and near-infrared region while the high thermo-optic coefficient of PDMS provides the ability to thermally control the intensity of the antiresonant bands. The proposed method opens new directions towards multimaterial silica-based PCFs for novel tunable devices and sensors.

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“…At present, the tunable lasers with output wavelengths in visible region can be achieved from dye lasers, optical parametric oscillators (OPO), and super continuum light sources. Among these tunable lasers, the operation of tunable dye lasers lie on liquid dye media, which are unpopular in the practical applications due to worse stability of the dyes and weak mobility and compactness; the OPO lasers are of all‐solid state, but their stability is weak and cost is much high; the super continuum light sources are not real lasers, their output is composed of broadband quasi white light, and their cost is also high . Therefore, broadband and tunable lasers have become a hot spot in the research of novel laser sources .…”

Section: Introductionmentioning

confidence: 99%

Broadband emission and flat optical gain glass containing Ag aggregates for tunable laser

Zhong

Chen

et al. 2018

J Am Ceram Soc

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Spectroscopic properties of Sm3+‐doped borate glass with silver aggregates were investigated, and it was found that the glass presented broad excitation and emission band covering violet‐infrared region. Furthermore, the optical gain coefficients at various wavelengths were measured via an amplified spontaneous emission technique, it was confirmed that the glass displayed flat net optical gain coefficient in almost full visible region. In addition, the fluorescent temperature quenching of the glass was examined, and it was seen that about 50% of room temperature emission intensity was kept when the sample was heated up to 325°C.

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Broadband Guidance in a Hollow-Core Photonic Crystal Fiber With Polymer-Filled Cladding

Cited by 32 publications

References 30 publications

Extended PDMS stiffness range for flexible systems

Extended PDMS stiffness range for flexible systems

Multimaterial photonic crystal fibers

Broadband emission and flat optical gain glass containing Ag aggregates for tunable laser

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