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Optics, Volume 6, Issue 1

March 2025 - 11 articles

Cover Story: In order to broaden the band range of spectral instruments, an ultra-wide-band Fourier transform infrared spectrometer is designed. The incident light of the spectrometer is constrained by a secondary imaging scheme, and switchable light sources and detectors are set to achieve an ultra-wide band coverage. A compact and highly stable double-moving mirror swing interferometer is adopted to generate optical path difference, and a controller is used to stabilize the swing of the moving mirrors. A distributed design of digital system integration and analog system integration is adopted to achieve a lightweight and low-power-consumption spectrometer. High-speed data acquisition and a transmission interface are applied to improve the real-time performance. Further, a series of experiments are performed to test the performance of the spectrometer. View this paper
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Articles (11)

  • Article
  • Open Access
1,036 Views
13 Pages

Single-Shot Wavefront Sensing in Focal Plane Imaging Using Transformer Networks

  • Hangning Kou,
  • Jingliang Gu,
  • Jiang You,
  • Min Wan,
  • Zixun Ye,
  • Zhengjiao Xiang and
  • Xian Yue

20 March 2025

Wavefront sensing is an essential technique in optical imaging, adaptive optics, and atmospheric turbulence correction. Traditional wavefront reconstruction methods, including the Gerchberg–Saxton (GS) algorithm and phase diversity (PD) techniq...

  • Article
  • Open Access
1,130 Views
15 Pages

Liquid Lens Optical Design for Adjustable Laser Spot Array for the Laser-Based Three-Dimensional Reconstruction of Vocal Fold Oscillations

  • Benjamin Haas,
  • Rose Mary,
  • Kristian Cvecek,
  • Clemens Roider,
  • Michael Schmidt,
  • Michael Döllinger and
  • Marion Semmler

12 March 2025

Standard endoscopy of vocal folds is in general limited to two-dimensional imaging. Laser-based 3D imaging offers not only absolute measurements but also the possibility of assessing all three spatial directions. However, due to human inter-individua...

  • Article
  • Open Access
1 Citations
2,305 Views
31 Pages

12 March 2025

We present an empirical model for the cross-section of low concentration acetone gas in the range of 1671.5–1675 nm that encompasses the absorption band of the methyl stretch overtone. This model is experimentally validated with cavity ring-dow...

  • Article
  • Open Access
2,249 Views
19 Pages

The Triplet–Triplet Annihilation Efficiency of Some 9,10-Substituted Diphenyl Anthracene Variants—A Decisive Analysis from Kinetic Rate Constants

  • Mikael Lindgren,
  • Victoria M. Bjelland,
  • Thor-Bernt Melø,
  • Callum McCracken,
  • Satoshi Seo and
  • Harue Nakashima

12 March 2025

Triplet–triplet transfer photochemical reactions are essential in many biological, chemical, and photonic applications. Here, the Pd-octaethylporphyrin sensitizer along with triplet–triplet annihilator (TTA) active 9,10-diphenylantracenes...

  • Article
  • Open Access
2,016 Views
15 Pages

Design of Ultra-Wide-Band Fourier Transform Infrared Spectrometer

  • Liangjie Zhi,
  • Wei Han,
  • Shuai Yuan,
  • Fengkun Luo,
  • Han Gao,
  • Zixuan Zhang and
  • Min Huang

5 March 2025

A wide band range can cover more of the characteristic spectral lines of substances, and thus analyze the structure and composition of substances more accurately. In order to broaden the band range of spectral instruments, an ultra-wide-band Fourier...

  • Article
  • Open Access
2 Citations
1,307 Views
17 Pages

19 February 2025

This paper introduces a novel approach to the design of multi-element planar solar concentrators, aimed at optimizing solar energy harvesting systems. The proposed methodology is based on the integration of identical unit cells, strategically arrange...

  • Article
  • Open Access
1,273 Views
13 Pages

Aberrometric, Geometrical, and Biomechanical Characterization of Sound-Induced Vibrational Modes of the Living Human Cornea

  • Francisco J. Ávila,
  • Óscar del Barco,
  • Maria Concepción Marcellán and
  • Laura Remón

5 February 2025

Repeatable and reliable assessment of corneal biomechanics with spatial resolution remains a challenge. Vibrational Optical Computerized Tomography (V-OCT), based on sound-wave elastography, has made it possible to investigate the natural resonant mo...

  • Article
  • Open Access
1 Citations
2,506 Views
16 Pages

Measurement Method of Refractive Index for Optical Lenses Based on Curvature Radius Fitting of Small-Sized Aspheric Surfaces

  • Tao Zhong,
  • Guangyan Guo,
  • Yasong Chow,
  • Yixuan Yang,
  • Tianhao Zhang,
  • Jiru Yang,
  • Mingxuan Lu,
  • Yonghuan Wang,
  • Yongjian Zhu and
  • Tianlei Jia
  • + 2 authors

20 January 2025

The study of the refractive index of traditional lenses is one of the foundational topics in the field of optics. The refractive index of a lens determines its ability to refract and focus light, making it a key parameter in optical design and applic...

  • Article
  • Open Access
1 Citations
1,367 Views
10 Pages

17 January 2025

In this paper, a high-linear-sensitivity fiber curvature sensor based on the sphere-shaped misaligned structure (SSMS) with few-mode fiber (FMF) and single-mode fiber (SMF) was proposed and demonstrated. A spherical structure was prepared at one end...

  • Article
  • Open Access
1 Citations
1,500 Views
11 Pages

9 January 2025

Time synchronization is an important technology in synchronous communication systems to ensure the accuracy of data transmission. Precise time synchronization allows the receiver to correctly interpret the signal at the correct moment. However, as co...

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Optics - ISSN 2673-3269