User profiles for Justin D. Cohen

Justin D. Cohen

- Verified email at caltech.edu - Cited by 1454

JD Cohen

- Verified email at alum.mit.edu - Cited by 499

The CD47-signal regulatory protein alpha (SIRPa) interaction is a therapeutic target for human solid tumors

…, R Martin, JD Cohen… - Proceedings of the …, 2012 - National Acad Sciences
CD47, a “don't eat me” signal for phagocytic cells, is expressed on the surface of all human
solid tumor cells. Analysis of patient tumor and matched adjacent normal (nontumor) tissue …

Phonon counting and intensity interferometry of a nanomechanical resonator

JD Cohen, SM Meenehan, GS MacCabe, S Gröblacher… - Nature, 2015 - nature.com
In optics, the ability to measure individual quanta of light (photons) enables a great many
applications, ranging from dynamic imaging within living organisms 1 to secure quantum …

Nano-acoustic resonator with ultralong phonon lifetime

GS MacCabe, H Ren, J Luo, JD Cohen, H Zhou… - Science, 2020 - science.org
The energy damping time in a mechanical resonator is critical to many precision metrology
applications, such as timekeeping and force measurements. We present measurements of …

Diamond optomechanical crystals

MJ Burek, JD Cohen, SM Meenehan, N El-Sawah… - Optica, 2016 - opg.optica.org
Cavity-optomechanical systems realized in single-crystal diamond are poised to benefit
from its extraordinary material properties, including low mechanical dissipation and a wide …

Pulsed excitation dynamics of an optomechanical crystal resonator near its quantum ground state of motion

SM Meenehan, JD Cohen, GS MacCabe, F Marsili… - Physical Review X, 2015 - APS
Using pulsed optical excitation and read-out along with single-phonon-counting techniques,
we measure the transient backaction, heating, and damping dynamics of a nanoscale …

[HTML][HTML] Nanowire photonic crystal waveguides for single-atom trapping and strong light-matter interactions

…, R Norte, CL Hung, SM Meenehan, JD Cohen… - Applied Physics …, 2014 - pubs.aip.org
We present a comprehensive study of dispersion-engineered nanowire photonic crystal
waveguides suitable for experiments in quantum optics and atomic physics with optically …

Silicon optomechanical crystal resonator at millikelvin temperatures

SM Meenehan, JD Cohen, S Gröblacher, JT Hill… - Physical Review A, 2014 - APS
Optical measurements of a nanoscale silicon optomechanical crystal cavity with a mechanical
resonance frequency of 3.6 GHz are performed at subkelvin temperatures. We infer optical…

Site‐specific protein modification using lipoic acid ligase and bis‐aryl hydrazone formation

JD Cohen, P Zou, AY Ting - ChemBioChem, 2012 - Wiley Online Library
A screen of Trp37 mutants of Escherichia coli lipoic acid ligase (LplA) revealed enzymes
capable of ligating an aryl‐aldehyde or aryl‐hydrazine substrate to LplA's 13‐residue acceptor …

Optical coupling to nanoscale optomechanical cavities for near quantum-limited motion transduction

JD Cohen, SM Meenehan, O Painter - Optics express, 2013 - opg.optica.org
A significant challenge in the development of chip-scale cavity-optomechanical devices as
testbeds for quantum experiments and classical metrology lies in the coupling of light from …

Phononic bandgap nano-acoustic cavity with ultralong phonon lifetime

GS MacCabe, H Ren, J Luo, JD Cohen, H Zhou… - arXiv preprint arXiv …, 2019 - arxiv.org
We present measurements at millikelvin temperatures of the microwave-frequency acoustic
properties of a crystalline silicon nanobeam cavity incorporating a phononic bandgap …