3 papers
physics.optics2026
Photogalvanic second harmonic generation in Si3N4 for 1 Hz level on-chip metrology and spectroscopy
Andrei Diakonov, Roy Zektzer, Xiyuan Lu +2
The coherent photogalvanic (PG) effect induces an effective nonlinearity in natively silicon nitride integrated photonics, unlocking pathways toward chip-scale…
physics.optics2026
Sub-Hz Stability and Correlation in Pair-Generated Primary Kerr Comb Tones
Konstantin Khrizman, Andrei Diakonov, Liron Stern +1
Kerr microcombs provide a compact route to broadband optical frequency grids, yet the primary comb states formed at the onset of Kerr-comb generation have received little attention…
physics.optics2025
Hybrid-Locked Kerr Microcombs for Flexible On-Chip Optical Clock Division
Andrei Diakonov, Konstantin Khrizman, Liron Stern
Optical atomic clocks deliver unrivaled precision, yet their size and complexity still confine them to specialized laboratories. Frequency combs provide the crucial optical-to-micr…