Vinit Dhulla

ORCID: 0000-0001-6322-5395
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Optical Sensing Technologies
  • Advanced Fluorescence Microscopy Techniques
  • Ocular and Laser Science Research
  • Analytical Chemistry and Sensors
  • CCD and CMOS Imaging Sensors
  • Biosensors and Analytical Detection
  • Advanced Surface Polishing Techniques
  • Advancements in Photolithography Techniques
  • Optical Imaging and Spectroscopy Techniques
  • Spectroscopy and Laser Applications
  • Nanofabrication and Lithography Techniques
  • Radiation Detection and Scintillator Technologies
  • Integrated Circuits and Semiconductor Failure Analysis

GlobalFoundries (Germany)
2024

GlobalFoundries (Singapore)
2023-2024

GlobalFoundries (United States)
2022

Cytel (United States)
2016-2020

Voxtel (United States)
2016-2020

Stony Brook University
2005-2008

State University of New York
2005

We introduce a new family of single-photon avalanche diodes (SPADs) with enhanced depletion regions in 55-nm Bipolar-CMOS-DMOS (BCD) technology. demonstrate how to systematically engineer doping profiles the main junction and deep p-well layers achieve high sensitivity low timing jitter. A sub 10 μm SPADs was designed fully characterized. With increase well-defined region, breakdown voltages three variants are 17.1, 20.6, 23.0 V, respectively, peak PDP wavelengths 450 nm, 540 640...

10.1109/jstqe.2024.3351676 article EN cc-by IEEE Journal of Selected Topics in Quantum Electronics 2024-01-01

We present an analog silicon photomultiplier (SiPM) based on a standard 55-nm Bipolar-CMOS-DMOS (BCD) technology. The SiPM is composed of 16 × single-photon avalanche diodes (SPADs) and measures 0.29 0.32 mm <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$^{2}$</tex-math></inline-formula> . Each SPAD cell passively quenched by monolithically integrated 3.3 V thick oxide transistor. measured gain 3.4 10...

10.1109/jstqe.2022.3161089 article EN IEEE Journal of Selected Topics in Quantum Electronics 2022-03-22

Time-resolved non-line-of-sight (NLOS) imaging based on single-photon avalanche diode (SPAD) detectors have demonstrated impressive results in recent years. To acquire adequate number of indirect photons from a hidden scene the presence overwhelming amount early-arrival photons, single-gated SPAD is widely employed to mitigate pile-up. However, additional prior knowledge range and relay surface profile are required preset gating position implement reconstruction. With this work, we propose...

10.1109/jstqe.2023.3283150 article EN IEEE Journal of Selected Topics in Quantum Electronics 2023-06-05

We demonstrate use of silicon photomultipliers (SiPMs) in single photon counting mode for detection very weak laser induced fluorescence (LIF). Detection LIF DNA-sequencing has been performed with three different commercially available SiPMs.

10.1109/cleo.2008.4551276 article EN Conference on Lasers and Electro-Optics 2008-05-01

We present the design, implementation, and characterization of a single-photon counting module (SPCM) based on large-area avalanche photodiode (APD) new logic circuit TTL integrated circuits (ICs) for generating precise quench reset delays. Low dark count rate, high linearity 2 MHz, maximum dynamic range 12 minimum dead time 35 ns have been achieved with 0.2 mm peltier-cooled single photon diode (SPAD) [model C30902S-DTC, Perkin Elmer Optoelectronics (PKI)]. The developed was fiberized...

10.1109/jstqe.2007.903005 article EN IEEE Journal of Selected Topics in Quantum Electronics 2007-01-01

Silicon (Si) single-photon avalanche diode (SPAD) arrays sensitive to the 400to 900-nm wavelength range have been studied for a number of uses due their high detection efficiency; zero readout noise; low timing jitter; mechanical robustness; low-voltage(<; 50 V) operation; mass producibility; and size, weight, power, cost. As with all solid-state detectors, however, they are susceptible damage by radiation, displacement energetic particles being primary concern many applications. This...

10.1109/tns.2020.2979808 article EN publisher-specific-oa IEEE Transactions on Nuclear Science 2020-03-10

The latest three-dimensional imaging results from Voxtel teamed with the University are Dayton presented using Voxtel's VOX3D™ series flash lidar camera. This camera uses VOX3D sensor which integrates a 128×128 InGaAs p-i-n detector array custom, multi-mode, low-noise, complementary metal-oxide semiconductor readout integrated circuit. In this paper, of: short-range (< 10 m) performed at of fast, low-power eye safe laser (20-μJ per pulse, 10-kHz) in high-bandwidth, windowed...

10.1117/12.2521981 article EN 2019-05-02

Initial results of electrical and optical characterization Voxtel's first generation 256 x dual-mode silicon singlephoton avalanche diode (SPAD) image sensor are presented. The SPAD is a device capable sequential passive single-photon-counting (2D) active single-photon lidar (3D) range imaging at greater than 250 frames per second, full-frame. was developed in 180-nm complementary metal-oxide semiconductor imagesensor technology with pixel pitch 30 μm fill factor 9%; it achieves room...

10.1117/12.2523084 article EN 2019-05-13

In this paper we present the results of electrical and optical characterization silicon single-photon avalanche diode (SPAD) development at Voxel Inc. Measurements are made on a 40 x SPAD array test chip with column readout, inpixel integrated active quenching circuit, pixel enable/disable circuit ability to control dead time from 37 ns 1.5 &mu;s. The pitch is 35 micrometers includes three different SPADs active-area diameters 8 micrometers, 10 14 micrometers. realized have breakdown voltage...

10.1117/12.2224283 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2016-05-05

We continue our work on the design and implementation of multi-channel single photon detection systems for highly sensitive ultra-weak fluorescence signals, high-performance, multi-lane DNA sequencing instruments. A fiberized, 32-channel (SPD) module based avalanche diode (SPAD), model C30902S-DTC, from Perkin Elmer Optoelectronics (PKI) has been designed implemented. Unavailability high performance, large area SPAD arrays desire to performance counting drives us use individual diodes....

10.1117/12.685838 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2006-10-18

Single photon counting is the most sensitive method for detection of weak signals. However, it has rarely been used in DNA sequencing applications because its complexity. We present a fiberized 16-channel single (SPD) module based on avalanche photo diodes (APD). The are cooled at -20 °C and average dark count 700 c/s with APD operating 10V over-voltage. proposed system uses active quenching basic NAND gates delay integrated circuits (ICs) compact size, robust, easily portable requires only...

10.1117/12.640108 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2005-11-09

We present an analog silicon photomultiplier (SiPM) based on a standard 55 nm Bipolar-CMOS-DMOS (BCD) technology. The SiPM is composed of 16$\times$16 single-photon avalanche diodes (SPADs) and measures 0.29$\times$0.32 mm$^2$. Each SPAD cell passively quenched by monolithically integrated 3.3 V thick oxide transistor. measured gain 3.4$\times$ 10$^5$ at 5 excess bias voltage. timing resolution (SPTR) 185 ps the multiple-photon (MPTR) 120 integrate into co-axial light detection ranging...

10.48550/arxiv.2112.14807 preprint EN other-oa arXiv (Cornell University) 2021-01-01
Coming Soon ...