A versatile micro-reflectivity setup for probing the optical properties of photonic nanostructures

Sachin Sharma; null Priya; Sudhir Kumar Saini; Rajesh V. Nair

doi:10.1063/1.5065575

A versatile micro-reflectivity setup for probing the optical properties of photonic nanostructures

Sachin Sharma, Priya, Sudhir Kumar Saini, Rajesh V. Nair

Research output: Contribution to journal › Article › Academic › peer-review

9 Citations (Scopus)

Abstract

The spatial- and spectral-dependent optical reflectivity measurements are essential to characterize various natural as well as artificial micron-scale photonic nanostructures. However, it is onerous to measure spatially and spectrally resolved reflectivity values from such photonic nanostructures due to their size limitations. Here, we discuss the development of a versatile micro-reflectivity setup with an in situ optical microscope combined with high-resolution actuators to measure the reflectivity from areas as small as 25 × 25 μm ² . We illustrate the reflectivity measurements from natural as well as artificially prepared ordered and disordered photonic nanostructures. The optical features that are hidden in the conventional reflectivity measurements are clearly resolved using the micro-reflectivity measurements. The proposed setup is also capable of measuring the polarization-dependent reflectivity and transmission of light.

Original language	English
Article number	023103
Journal	Review of scientific instruments
Volume	90
Issue number	2
DOIs	https://doi.org/10.1063/1.5065575
Publication status	Published - 1 Feb 2019
Externally published	Yes

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title = "A versatile micro-reflectivity setup for probing the optical properties of photonic nanostructures",

abstract = " The spatial- and spectral-dependent optical reflectivity measurements are essential to characterize various natural as well as artificial micron-scale photonic nanostructures. However, it is onerous to measure spatially and spectrally resolved reflectivity values from such photonic nanostructures due to their size limitations. Here, we discuss the development of a versatile micro-reflectivity setup with an in situ optical microscope combined with high-resolution actuators to measure the reflectivity from areas as small as 25 × 25 μm 2 . We illustrate the reflectivity measurements from natural as well as artificially prepared ordered and disordered photonic nanostructures. The optical features that are hidden in the conventional reflectivity measurements are clearly resolved using the micro-reflectivity measurements. The proposed setup is also capable of measuring the polarization-dependent reflectivity and transmission of light. ",

author = "Sachin Sharma and Priya and Saini, {Sudhir Kumar} and Nair, {Rajesh V.}",

note = "Funding Information: We would like to acknowledge IIT Ropar for the use of SEM and the UV-VIS-NIR spectrophotometer and optical microscope. The financial support from IIT Ropar, DST-SERB, INSA, and CSIR is gratefully acknowledged. Publisher Copyright: {\textcopyright} 2019 Author(s).",

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doi = "10.1063/1.5065575",

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AU - Sharma, Sachin

AU - Priya, null

AU - Saini, Sudhir Kumar

AU - Nair, Rajesh V.

N1 - Funding Information: We would like to acknowledge IIT Ropar for the use of SEM and the UV-VIS-NIR spectrophotometer and optical microscope. The financial support from IIT Ropar, DST-SERB, INSA, and CSIR is gratefully acknowledged. Publisher Copyright: © 2019 Author(s).

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The spatial- and spectral-dependent optical reflectivity measurements are essential to characterize various natural as well as artificial micron-scale photonic nanostructures. However, it is onerous to measure spatially and spectrally resolved reflectivity values from such photonic nanostructures due to their size limitations. Here, we discuss the development of a versatile micro-reflectivity setup with an in situ optical microscope combined with high-resolution actuators to measure the reflectivity from areas as small as 25 × 25 μm 2 . We illustrate the reflectivity measurements from natural as well as artificially prepared ordered and disordered photonic nanostructures. The optical features that are hidden in the conventional reflectivity measurements are clearly resolved using the micro-reflectivity measurements. The proposed setup is also capable of measuring the polarization-dependent reflectivity and transmission of light.

AB - The spatial- and spectral-dependent optical reflectivity measurements are essential to characterize various natural as well as artificial micron-scale photonic nanostructures. However, it is onerous to measure spatially and spectrally resolved reflectivity values from such photonic nanostructures due to their size limitations. Here, we discuss the development of a versatile micro-reflectivity setup with an in situ optical microscope combined with high-resolution actuators to measure the reflectivity from areas as small as 25 × 25 μm 2 . We illustrate the reflectivity measurements from natural as well as artificially prepared ordered and disordered photonic nanostructures. The optical features that are hidden in the conventional reflectivity measurements are clearly resolved using the micro-reflectivity measurements. The proposed setup is also capable of measuring the polarization-dependent reflectivity and transmission of light.

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A versatile micro-reflectivity setup for probing the optical properties of photonic nanostructures

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