A. P. Roy
YOU?
Author Swipe
Bird mortality at wind farms in a tropical desert Open
The global aspiration for clean energy needs to accommodate biodiversity concerns. While India's wind energy has grown annually by ~ 15% in recent past, their ecological impacts have not been assessed systematically. We studied bird mortal…
Data for "Quadratic-soliton-enhanced mid-IR molecular sensing" Open
Data and processing code corresponding to the manuscript, "Quadratic-soliton-enhanced mid-IR molecular sensing."
View article: Hydrostatic pressure effect on structural and transport properties of co-existing layered and disordered rock-salt phase of LixCoO2
Hydrostatic pressure effect on structural and transport properties of co-existing layered and disordered rock-salt phase of LixCoO2 Open
It is widely believed that the origin of a significant cause for the voltage and capacity fading observed in lithium (Li)-ion batteries is related to structural modifications occurring in the cathode material during the Li-ion insertion/de…
Optical-parametric-amplification-enhanced background-free spectroscopy Open
Traditional absorption spectroscopy has fundamental difficulty in resolving small absorbance from strong background due to the instability of laser sources. Existing background-free methods in broadband vibrational spectroscopy help to all…
Visible-to-mid-IR tunable frequency comb in nanophotonics Open
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequency combs has mostly been centered around the near-infrared …
Mode-locked laser in nanophotonic lithium niobate Open
Mode-locked lasers (MLLs) have enabled ultrafast sciences and technologies by generating ultrashort pulses with peak powers substantially exceeding their average powers. Recently, tremendous efforts have been focused on realizing integrate…
View article: Visible-to-mid-IR tunable frequency comb in nanophotonics
Visible-to-mid-IR tunable frequency comb in nanophotonics Open
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequency combs has mostly been centered around the near-infrared …
Non-equilibrium phase transitions in coupled nonlinear optical resonators Open
Phase transitions and the associated symmetry breaking are at the heart of many physical phenomena. Coupled systems with multiple interacting degrees of freedom provide a fertile ground for emergent dynamics that is otherwise inaccessible …
View article: Femtojoule, femtosecond all-optical switching in lithium niobate nanophotonics
Femtojoule, femtosecond all-optical switching in lithium niobate nanophotonics Open
Optical nonlinear functions are crucial for various applications in integrated photonics, such as all-optical information processing, photonic neural networks and on-chip ultrafast light sources. Due to the weak nonlinearities in most inte…
View article: Confining light in all-dielectric anisotropic metamaterial particles for\n nano-scale nonlinear optics
Confining light in all-dielectric anisotropic metamaterial particles for\n nano-scale nonlinear optics Open
High-index dielectrics can confine light into nano-scale leading to enhanced\nnonlinear response. However, increased momentum in these media can deteriorate\nthe overlap between different harmonics which hinders efficient nonlinear\nintera…