Publications by Ivan Michel Antolovic

Related publications (33)

Heralded Spectroscopy Reveals Exciton-Exciton Correlations in Single Colloidal Quantum Dots

Edoardo Charbon, Claudio Bruschini, Samuel Burri, Arin Can Ülkü, Ivan Michel Antolovic

Multiply excited states in semiconductor quantum dots feature intriguing physics and play a crucial role in nanocrystal-based technologies. While photoluminescence provides a natural probe to investigate these states, room-temperature single-particle spect ...

AMER CHEMICAL SOC2021

A 512 x 512 SPAD Image Sensor With Integrated Gating for Widefield FLIM

Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü, Ivan Michel Antolovic

In this paper, we report on SwissSPAD2, an image sensor with 512 x 512 photon-counting pixels, each comprising a single-photon avalanche diode (SPAD), a 1-b memory, and a gating mechanism capable of turning the SPAD ON and OFF, with a skew of 250 and 344 p ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Resolving the Controversy in Biexciton Binding Energy of Cesium Lead Halide Perovskite Nanocrystals through Heralded Single-Particle Spectroscopy

Edoardo Charbon, Claudio Bruschini, Samuel Burri, Arin Can Ülkü, Ivan Michel Antolovic

Understanding exciton-exciton interaction in multiply excited nanocrystals is crucial to their utilization as functional materials. Yet, for lead halide perovskite nanocryst-als, which are promising candidates for nanocrystal-based technologies, numerous c ...

AMER CHEMICAL SOC2021

A CMOS SPAD Imager with Collision Detection and 128 Dynamically Reallocating TDCs for Single-Photon Counting and 3D Time-of-Flight Imaging

Edoardo Charbon, Ivan Michel Antolovic, Chunmin Zhang, Scott Anthony Lindner

Per-pixel time-to-digital converter (TDC) architectures have been exploited by single-photon avalanche diode (SPAD) sensors to achieve high photon throughput, but at the expense of fill factor, pixel pitch and readout efficiency. In contrast, TDC sharing a ...

2018

Single-photon avalanche diode imagers in biophotonics: review and outlook

Edoardo Charbon, Claudio Bruschini, Samuel Burri, Ivan Michel Antolovic

Single-photon avalanche diode (SPAD) arrays are solid-state detectors that offer imaging capabilities at the level of individual photons, with unparalleled photon counting and time-resolved performance. This fascinating technology has progressed at a very ...

2019

Random flip-flop: adding quantum randomness to digital circuits for improved cyber security, artificial intelligence and more

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic

Harnessing quantum randomness for the generation of random numbers is an important concept crucial for information security and many other computer-related applications. Quantum random number generators (QRNGs) are evolving from bulky, slow, and expensive ...

SPIE2021

Analyzing blinking effects in super resolution localization microscopy with single-photon SPAD imagers

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Samuel Burri

For many scientific applications, electron multiplying charge coupled devices (EMCCDs) have been the sensor of choice because of their high quantum efficiency and built-in electron amplification. Lately, many researchers introduced scientific complementary ...

Spie-Int Soc Optical Engineering2016

Fluorescence lifetime imaging using a single photon avalanche diode array sensor

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Samuel Burri

Single photon detectors allows us work with the weakest fluorescence signals. Single photon arrays, combined with ps-controlled gating allow us to create image maps of fluorescence lifetimes, which can be used for in-vivo discrimination of tissue activity. ...

2017

Large reconfigurable quantum circuits with SPAD arrays and multimode fibers

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic

Reprogrammable integrated optics provides a natural platform for tunable quantum photonic circuits, but faces challenges when high dimensions and high connectivity are involved. Here, we implement high-dimensional linear transformations on spatial modes of ...

Optica Publishing Group2024

Imaging free and bound NADH towards cancer tissue detection using FLIM system based on SPAD array

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Samuel Burri

Summary form only given. Single photon detectors allow us to work with the weakest signals such as auto-fluorescent biological sources. In combination with time gated operation mode, an array of detectors can be used as Fluorescence Lifetime Imaging system ...

2017

A 30-frames/s, 252 x 144 SPAD Flash LiDAR With 1728 Dual-Clock 48.8-ps TDCs, and Pixel-Wise Integrated Histogramming

Edoardo Charbon, Ivan Michel Antolovic, Chunmin Zhang, Scott Anthony Lindner, Juan Mata Pavia

A 252 x 144 single-photon avalanche diode (SPAD) pixel sensor, called Ocelot, is reported for light detection and ranging (LiDAR). The sensor, fabricated in the 180-nm CMOS technology, features 1728 12-bit time-to-digital converters (TDCs) with 48.8-ps res ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Phasor-based widefield FLIM using a gated 512×512 single-photon SPAD imager

Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü, Ivan Michel Antolovic

Single-photon avalanche diode (SPAD) imagers can perform fast time-resolved imaging in a compact form factor, by exploiting the processing capability and speed of integrated CMOS electronics. Developments in SPAD imagers have recently made them compatible ...

2019

Megapixel time-gated SPAD image sensor for 2D and 3D imaging applications

Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü, Ivan Michel Antolovic, Andrei Ardelean, Ming-Lo Wu, Kazuhiro Morimoto

We present a 1 Mpixel single-photon avalanche diode camera featuring 3.8 ns time gating and 24 kips frame rate, fabricated in 180 nm CMOS image sensor technology. We designed two pixels with a pitch of 9.4 mu m in 7 T and 5.75 T configurations respectively ...

2020

Challenges and prospects for multi-chip microlens imprints on front-side illuminated SPAD imagers

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Scott Anthony Lindner, Tommaso Milanese, Ermanno Bernasconi, Vladimir Pesic

The overall sensitivity of frontside-illuminated, silicon single-photon avalanche diode (SPAD) arrays has often suffered from fill factor limitations. The fill factor loss can however be recovered by employing microlenses, whereby the challenges specific t ...

Optica Publishing Group2023

Method and light microscope with a plurality of arrays of photon-counting detector elements

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic

A method for operating a light microscope comprises emitting and guiding a plurality of illumination light beams towards a specimen (6) to form a plurality of separated illumination light spots (2A, 2B, 2C, 2D) at the specimen; and guiding detection light ...

2022

Quantum correlation measurement with single photon avalanche diode arrays

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic

Temporal photon correlation measurement, instrumental to probing the quantum properties of light, typically requires multiple single photon detectors. Progress in single photon avalanche diode (SPAD) array technology highlights their potential as high-perf ...

2019

Nonuniformity Analysis of a 65-kpixel CMOS SPAD Imager

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Samuel Burri

While CMOS single-photon avalanche diode (SPAD) technology has steadily advanced, improving noise, timing resolution, and sensitivity, spatial resolution has been increasing as well. The increase in the number of pixels has made a comprehensive analysis of ...

IEEE-Inst Electrical Electronics Engineers Inc2016

Photon-Counting Arrays for Time-Resolved Imaging

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Samuel Burri

The paper presents a camera comprising 512 x 128 pixels capable of single-photon detection and gating with a maximum frame rate of 156 kfps. The photon capture is performed through a gated single-photon avalanche diode that generates a digital pulse upon p ...

MDPI2016

Heralded Spectroscopy: a new single-particle probe for nanocrystal photophysics

Edoardo Charbon, Claudio Bruschini, Samuel Burri, Arin Can Ülkü, Ivan Michel Antolovic

Semiconductor nanocrystals feature multiply-excited states that display intriguing physics and significantly impact nanocrystal-based technologies. Fluorescence supplies a natural probe to investigate these states. Still, direct observation of multiexciton ...

SPIE2023

Dynamic range extension for photon counting arrays

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic

Confocal microscopes use photomultiplier tubes and hybrid detectors due to their large dynamic range, which typically exceeds the one of single-photon avalanche diodes (SPADs). The latter, due to their photon counting operation, are usually limited to an o ...

2018