Light Phase Modulation with Transparent Paraffin‐Based Phase Change Materials DOI Creative Commons
Jaume Ramon Otaegui,

Yannick Bertschy,

Lorenzo Vallan

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 4, 2024

Abstract Phase change materials (PCM) have greatly contributed to optics with applications ranging from rewritable memories smart windows. This is possible thanks the variation in optical properties that PCMs undergo upon thermally‐induced phase change. However, this behavior accompanied by a loss of transparency one (or more) their phases, posing major limitation for transmission‐based functionalities. Here challenge addressed producing PCM‐based composites remain transparent visible spectrum during transition. The cornerstone innovative material use 30 nm‐in‐size nanoparticles paraffin as PCMs, which minimizes scattering within polymer host matrix regardless paraffin's phase. To demonstrate potential approach, it shown thin composite layers can modulate incident light using temperature, achieving uniform profiles maximum shifts up π radians. Notably, studied exhibit threefold larger changes same input power over reference thermo‐optical like polydimethylsiloxane. These findings position paraffin‐based promising various applications, including wavefront shaping and aberration correction, significantly impact variety technologies.

Язык: Английский

Electric polarization-enhanced optical thermometry in lanthanide ions-doped ferroelectric Bi4Ti3O12 nanosheets DOI
Jiawen Wang, Lihui Huang, Shenghuang Lin

и другие.

Optics Letters, Год журнала: 2025, Номер 50(4), С. 1377 - 1377

Опубликована: Янв. 23, 2025

The demand for temperature measurement in optoelectronic integration has prompted research on advanced luminescent materials. Here, ferroelectric Bi 4 Ti 3 O 12 :Yb 3+ /Er /Nd nanosheets were designed optical thermometry. transition emissions of significantly enhanced through electric polarization engineering. By utilizing the fluorescence intensity ratio from Nd and Er ions, poled system achieved notable absolute relative sensing sensitivities 3.03 2.52% K −1 , respectively. These results highlight multi-band luminescence coupling characteristics lanthanide ion-doped suggest that field polarization-enhanced can serve a reference enhancing capabilities.

Язык: Английский

Процитировано

0
Ultrabroadband Optical Diffraction Tomography DOI Creative Commons

Martin Hörmann,

Franco V. A. Camargo, N.F. van Hulst

и другие.

ACS Photonics, Год журнала: 2024, Номер 11(9), С. 3680 - 3687

Опубликована: Авг. 27, 2024

Optical diffraction tomography (ODT) is a powerful noninvasive 3D imaging technique, but its combination with broadband light sources difficult. In this study, we introduce ultrabroadband ODT, covering over 150 nm of visible spectral bandwidth lateral spatial resolution nm. Our work addresses critical experimental gap by enabling the measurement refractive index changes in samples, crucial information that difficult to assess existing methodologies. We present broadband, spectrally resolved ODT images HeLa cells, obtained via pulse-shaping-based Fourier transform spectroscopy. The observations enabled combined material-dependent responses, allow for precise three-dimensional identification nanoparticles within cellular structures. represents step toward time and complex structures implications life materials science applications.

Язык: Английский

Процитировано

1
Light Phase Modulation with Transparent Paraffin‐Based Phase Change Materials DOI Creative Commons
Jaume Ramon Otaegui,

Yannick Bertschy,

Lorenzo Vallan

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 4, 2024

Abstract Phase change materials (PCM) have greatly contributed to optics with applications ranging from rewritable memories smart windows. This is possible thanks the variation in optical properties that PCMs undergo upon thermally‐induced phase change. However, this behavior accompanied by a loss of transparency one (or more) their phases, posing major limitation for transmission‐based functionalities. Here challenge addressed producing PCM‐based composites remain transparent visible spectrum during transition. The cornerstone innovative material use 30 nm‐in‐size nanoparticles paraffin as PCMs, which minimizes scattering within polymer host matrix regardless paraffin's phase. To demonstrate potential approach, it shown thin composite layers can modulate incident light using temperature, achieving uniform profiles maximum shifts up π radians. Notably, studied exhibit threefold larger changes same input power over reference thermo‐optical like polydimethylsiloxane. These findings position paraffin‐based promising various applications, including wavefront shaping and aberration correction, significantly impact variety technologies.

Язык: Английский

Процитировано

0