activity
20202024
most citedLong Phonon Mean Free Paths Observed in Cross-plane Thermal-Conductivity Measurements of Exfoliated Hexagonal Boron Nitride

61 citations · 71 across the 7 of their papers we have counts for

collaborators

7 papers

physics.optics2024

Self-referencing photothermal common-path interferometry to measure absorption of Si3N4 membranes for laser-light sails

Tanuj Kumar, Demeng Feng, Shenwei Yin +12

Laser-light sails are a spacecraft concept wherein lightweight "sails" are propelled by high-intensity lasers. We investigated the near-infrared absorption of free-standing membran…

physics.space-ph2023★ 7 cited

The Effect of Dust and Hotspots on the Thermal Stability of Laser Sails

Gabriel R. Jaffe, Gregory R. Holdman, Min Seok Jang +3

Laser sails propelled by gigawatt-scale ground-based laser arrays have the potential to reach relativistic speeds, traversing the solar system in hours and reaching nearby stars in…

physics.optics2021

Thermal runaway of silicon-based laser sails

Gregory R. Holdman, Gabriel R. Jaffe, Min Seok Jang +3

Laser sail-based spacecraft -- where a powerful earth-based laser propels a lightweight outer-space vehicle -- have been recently proposed by the Breakthrough Starshot Initiative a…

cond-mat.mtrl-sci2021★ 3 cited

A Simple Numerical Method for Evaluating Heat Dissipation from Curved Wires with Periodic Applied Heating

Gabriel R. Jaffe, Victor W. Brar, Max G. Lagally +1

In many situations, the dual-purpose heater/thermometer wires used in the three-omega method, one of the most precise and sensitive techniques for measuring the thermal conductivit…

cond-mat.mtrl-sci2021★ 61 cited

Long Phonon Mean Free Paths Observed in Cross-plane Thermal-Conductivity Measurements of Exfoliated Hexagonal Boron Nitride

Gabriel R. Jaffe, Keenan J. Smith, Kenji Watanabe +4

Sub-micron-thick layers of hexagonal boron nitride (hBN) exhibit high in-plane thermal conductivity, useful optical properties, and serve as dielectric encapsulation layers with lo…

physics.optics2020

Adjoint-optimized nanoscale light extractor for nitrogen-vacancy centers in diamond

Raymond A. Wambold, Zhaoning Yu, Yuzhe Xiao +7

We designed a nanoscale light extractor (NLE) for efficient outcoupling and beaming of broadband light emitted by shallow, negatively charged nitrogen-vacancy (NV) centers in bulk…

cond-mat.mtrl-sci2020

Three-Omega Thermal-Conductivity Measurements with Curved Heater Geometries

Gabriel R. Jaffe, Keenan J. Smith, Victor W. Brar +2

The three-omega method, a powerful technique to measure the thermal conductivity of nanometer-thick films and the interfaces between them, has historically employed straight conduc…