Analytical study on arbitrary waveform generation by MEMS micro mirror arrays

Kalyoncu, Salih K.; Huang, Yuewang; Song, Qi; Boyraz, Özdal

doi:10.1364/oe.20.027542

Cited by 8 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, the DMD chipset modulated the light by its 2D pixel arrays. From this modulation property, it has been deployed in many optical applications as a spatial light modulator to generate optical arbitrary waveforms, [56,57] beam steerer for lidar applications, [58,59] beam deflector for fast dispersive laser scanning systems. [60,61] Here, the DMD chipset functioned as a photomask to generate dynamic optical patterns.…”

Section: The Design Approach and Principle Of Operationmentioning

confidence: 99%

A Novel 3D‐Bioprinting Technology of Orderly Extruded Multi‐Materials via Photopolymerization

Negrete

Babayigit

Najafikoshnoo

et al. 2023

Adv Materials Technologies

Self Cite

View full text Add to dashboard Cite

As a 3D bioprinting technique, digital light processing (DLP) has become popular due to its capability to provide high-throughput and high-resolution constructs with precise chemical and biological factor distributions. However, despite the advancements in DLP technology, several hurdles remain, including phototoxicity, extensive printing time, and the limited portfolio of biocompatible/photo-cross-linkable materials. Recently, few works have attended to resolve some of these issues. However, state-of-the-art techniques bear on complex imaging processing, require highly skilled personnel, and operate with non-biocompatible/photo-cross-linkable materials. Additionally, they are not yet capable of multi-layer and multi-material printing of biocompatible/photo-cross-linkable materials to fabricate physiologically relevant cell-laden structures. Herein, a novel DLP-based 3D-bioprinting technology called photopolymerization of orderly extruded multi-materials (POEM), is proposed, developed, and fully characterized. The utility of the POEM technique for rapid and high-resolution 3D-printing of multi-material, multi-layer, and cell-laden structures is demonstrated. The printed configurations show high cell viability (≈80%) and metabolic activity for more than 5 days. As a study model, a 3D-structure representing the esophagus is also successfully printed and characterized. It is envisioned that the reported light-based POEM technique here enables the fabrication of 3D-cell-laden structures in a multi-material and multi-layer printing manner in biocompatible/photo-cross-linkable materials essential to construct complex heterogeneous tissues/organs.

show abstract

Section: The Design Approach and Principle Of Operationmentioning

confidence: 99%

A Novel 3D‐Bioprinting Technology of Orderly Extruded Multi‐Materials via Photopolymerization

Negrete

Babayigit

Najafikoshnoo

et al. 2023

Adv Materials Technologies

Self Cite

View full text Add to dashboard Cite

show abstract

“…6) using the FTS and the spectrometer. We compare the measured ILS with an analytical model of the spectral response, 15 assuming a gaussian light distribution exiting the single-mode incoupling fiber with the specified mode field diameter. The analytical model is in agreement with the FTS measurement, indicating a good alignment of the setup (see Fig.…”

Section: Instrumental Line Shapementioning

confidence: 99%

Spectral envelope control for a flat frequency comb spectrum

Debus

Huke

Meyer

et al. 2021

J. Astron. Telesc. Instrum. Syst.

View full text Add to dashboard Cite

Laser frequency combs have properties that make them promising spectrograph calibration light sources. One drawback for this application is the high dynamic range in the supercontinuum spectra of some frequency combs. We aim to flatten the spectrum of a Ti:sapphire laser frequency comb to improve the calibration performance for a Fourier transform spectrograph. For this, we develop a compact Fourier transform optical pulse shaping setup, which enables control of the spectral envelope via dispersion of the light onto a spatial light modulator (SLM). We demonstrate that this setup allows us to flatten the comb spectrum in the wavelength range 780 to 980 nm. For 90% of the wavelength range, the dynamic range is below 3 dB. In the flattened spectra 3% more comb lines can be detected. The line center fit precision, however, is reduced due to noise caused by the SLM. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

“…The aggregate intensity profile of all wavelengths after the space-wavelength mapping, i.e., after the diffraction grating and a Fourier lens, can be formulated as [29].…”

Section: Modeling Setup and Theorymentioning

confidence: 99%

“…2, that is defined as a function of groove density 𝐺 and the first order diffraction angle 𝛽. For a beam with wavelength λ, and incident angle α, the first order diffraction angle 𝛽 is given by the grating equation sin(α) + sin(β) = λG which reduces to 2sin(β) = λG when α = β in a Littrow configuration [29]. To develop a formulation for the optical force at the focal plane, we assume operation under the Rayleigh scattering limit and that the particles are polarizable, such as dielectric particles.…”

Section: Modeling Setup and Theorymentioning

confidence: 99%

Electronic control of optical tweezers using space-time-wavelength mapping

et al. 2016

Self Cite

View full text Add to dashboard Cite

We present a new approach for electronic control of optical tweezers by using space--time--wavelength mapping (STWM), a technique that uses time--domain modulation to control local intensity values, and hence the resulting optical force, in space. The proposed technique enables direct control of magnitude, location, and polarity of force hot--spots created by Lorentz force (gradient force). In this paper, we develop an analytical formulation of the proposed STWM technique for optical tweezing. In the case study presented here, we show that 150 fs optical pulses are dispersed in time and space to achieve a focused elliptical beam that is ~20 μm long and ~2 μm wide. By choosing the appropriate RF waveform and electro--optic modulator, we can generate multiple hot--spots with >200 pN force per pulse.

show abstract

Analytical study on arbitrary waveform generation by MEMS micro mirror arrays

Cited by 8 publications

References 17 publications

A Novel 3D‐Bioprinting Technology of Orderly Extruded Multi‐Materials via Photopolymerization

A Novel 3D‐Bioprinting Technology of Orderly Extruded Multi‐Materials via Photopolymerization

Spectral envelope control for a flat frequency comb spectrum

Electronic control of optical tweezers using space-time-wavelength mapping

Contact Info

Product

Resources

About