3 papers
physics.optics2026
Inverse-designed non-volatile phase change varifocal metalens at the edge of the visible spectrum
Subrahmanyam S. G. Mantha, Harish N. S. Krishnamoorthy
Reconfigurable metalenses capable of large focal length tuning, fast response times, and high focusing efficiency while maintaining diffraction-limited operation are highly desirab…
physics.optics2025
Higher order Conjugate Exceptional Points in an 1D Photonic Bandgap Waveguide
Sibnath Dey, Harish N S Krishnamoorthy, Somnath Ghosh
We demonstrate third-order conjugate exceptional points (EPs) in a gain-loss assisted multi-mode 1D complementary photonic bandgap waveguide. Our study reveals the higher-order mod…
physics.optics2024
Nonlinear interferometry-based metrology of magneto-optical properties at infrared wavelengths
Tanmoy Chakraborty, Thomas Produit, Harish N S Krishnamoorthy +2
Magneto-optical properties of materials are utilized in numerous applications both in scientific research and industries. The novel properties of these materials can be further inv…