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Nature Photonics (8)
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Showing 1–19 of 19 results

Advanced filters: Author: Bahram Jalali Clear advanced filters

Nonlinear optics in the mid-infrared

Carefully designed nanophotonic silicon waveguides, when pumped at long wavelengths to avoid inherent losses, are opening the door to useful nonlinear processes in the mid-infrared.

Bahram Jalali
News & Views01 Aug 2010
Nature Photonics

Volume: 4, P: 506-508
A cooler Raman laser

Textbooks suggest that heating, caused by phonon emission, is an inevitable and intrinsic by-product of light generation in a Raman laser. Now a design has emerged that reduces the phonon emission and may lead to higher efficiency and smaller devices.

Bahram Jalali
News & Views01 Dec 2007
Nature Photonics

Volume: 1, P: 691-692
All-dielectric photonic-assisted radio front-end technology

Rick C. J. Hsu
Ali Ayazi
Bahram Jalali
Research19 Aug 2007
Nature Photonics

Volume: 1, P: 535-538
Mapping 123 million neonatal, infant and child deaths between 2000 and 2017

A high-resolution, global atlas of mortality of children under five years of age between 2000 and 2017 highlights subnational geographical inequalities in the distribution, rates and absolute counts of child deaths by age.

Roy Burstein
Nathaniel J. Henry
Simon I. Hay
ResearchOpen Access16 Oct 2019
Nature

Volume: 574, P: 353-358
Teaching silicon new tricks

Arguably the most important element for the electronics industry, silicon is now being given a new lease of life in the world of photonics.

Bahram Jalali
Comments & Opinion01 Apr 2007
Nature Photonics

Volume: 1, P: 193-195
Differential phase-diversity electrooptic modulator for cancellation of fiber dispersion and laser noise

In this work, the authors showcase four-phase electrooptic modulators (FEOMs) implemented on thin-film lithium niobate. This innovation effectively addresses challenges related to dispersion and semiconductor laser noise limitations, offering a promising solution for integrated photonic applications.

Ehsan Ordouie
Tianwei Jiang
Bahram Jalali
ResearchOpen Access28 Sept 2023
Nature Communications

Volume: 14, P: 1-10
Time-stretch LiDAR as a spectrally scanned time-of-flight ranging camera

A wavelength-scanned LiDAR offers high spatial resolution and can dynamically adapt to fast moving scenes.

Yunshan Jiang
Sebastian Karpf
Bahram Jalali
Research02 Dec 2019
Nature Photonics

Volume: 14, P: 14-18
Digitally synthesized beat frequency multiplexing for sub-millisecond fluorescence microscopy

A confocal fluorescence microscopy scheme that maps the image to the radiofrequency spectrum by beating together two optical fields offers enhanced read-out speeds at kilohertz frame rates. It provides a new way for observing dynamic phenomena in cells.

Eric D. Diebold
Brandon W. Buckley
Bahram Jalali
Research22 Sept 2013
Nature Photonics

Volume: 7, P: 806-810
Analog optical computing

The concept of optical computing is reintroduced with an important new twist — optical computing not as a digital machine, but as an analog engine able to serve as a hardware accelerator for existing electronic computers.

Daniel R. Solli
Bahram Jalali
Comments & Opinion29 Oct 2015
Nature Photonics

Volume: 9, P: 704-706
Association of the Healthy Nordic Food Index with risk of bladder cancer: a case–control study

Melika Hajjar
Arezoo Rezazadeh
Bahram Rashidkhani
Research06 Jul 2021
European Journal of Clinical Nutrition

Volume: 76, P: 482-486
Spectral dynamics on saturable absorber in mode-locking with time stretch spectroscopy

Masayuki Suzuki
Ozdal Boyraz
Bahram Jalali
ResearchOpen Access02 Sept 2020
Scientific Reports

Volume: 10, P: 1-7
Spectro-temporal encoded multiphoton microscopy and fluorescence lifetime imaging at kilohertz frame-rates

Two-photon microscopy has been limited by low acquisition rates due to mechanical scanners. Here, the authors employ pulse-modulated, rapidly wavelength-swept lasers and inertia-free beam steering through angular dispersion in order to achieve non-linear microscopy with kilohertz frame rates.

Sebastian Karpf
Carson T. Riche
Bahram Jalali
ResearchOpen Access28 Apr 2020
Nature Communications

Volume: 11, P: 1-9
Mapping routine measles vaccination in low- and middle-income countries

Although progress in the coverage of routine measles vaccination in children in low- and middle-income countries was made during 2000–2019, many countries remain far from the goal of 80% coverage in all districts by 2019.

Alyssa N. Sbarra
Sam Rolfe
Jonathan F. Mosser
ResearchOpen Access16 Dec 2020
Nature

Volume: 589, P: 415-419
Deep Cytometry: Deep learning with Real-time Inference in Cell Sorting and Flow Cytometry

Yueqin Li
Ata Mahjoubfar
Bahram Jalali
ResearchOpen Access31 Jul 2019
Scientific Reports

Volume: 9, P: 1-12
Time stretch and its applications

Photonic time-stretch techniques and their applications are reviewed. The approach enables the observation of signals that are otherwise too short or rapid for conventional measurement.

Ata Mahjoubfar
Dmitry V. Churkin
Bahram Jalali
Reviews01 Jun 2017
Nature Photonics

Volume: 11, P: 341-351
Phase Diversity Electro-optic Sampling: A new approach to single-shot terahertz waveform recording

We demonstrate a new strategy for recording THz electric signals with long duration and high bandwidth. It uses an original combination of Terahertz electro-optic detection techniques, with diversity concepts borrowed from wireless communications and time-stretch.

Eléonore Roussel
Christophe Szwaj
Serge Bielawski
ResearchOpen Access10 Jan 2022
Light: Science & Applications

Volume: 11, P: 1-14
Matrix Analysis of Warped Stretch Imaging

Chanju Kim
Ata Mahjoubfar
Bahram Jalali
ResearchOpen Access11 Sept 2017
Scientific Reports

Volume: 7, P: 1-13
Deep Learning in Label-free Cell Classification

Claire Lifan Chen
Ata Mahjoubfar
Bahram Jalali
ResearchOpen Access15 Mar 2016
Scientific Reports

Volume: 6, P: 1-16
Design of Warped Stretch Transform

Ata Mahjoubfar
Claire Lifan Chen
Bahram Jalali
ResearchOpen Access25 Nov 2015
Scientific Reports

Volume: 5, P: 1-15