Search Results - "Das, Ritwick"

Blood component detection based on miniaturized self-referenced hybrid Tamm-plasmon-polariton sensor by Maji, Partha Sona, Shukla, Mukesh Kumar, Das, Ritwick

“…•Blood component detection scheme with hybrid Tamm-plasmon-polariton (TPP) proposed.•Two discernible absorption peaks corresponding to TPP mode-coupling…”
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A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance by Singh, Maneesh Kumar, Pal, Sarika, Verma, Alka, Das, Ritwick, Prajapati, Yogendra Kumar

“…The objective of the proposed work is to design a biosensor that monitors hemoglobin (Hb) concentration using the combination of nanolayer, i.e., barium…”
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Designing broadband fiber optic parametric amplifier based on near-zero single ZDW PCF with ultra-flat nature by Partha Sona Maji, Partha Sona Maji, Ritwick Das, Ritwick Das

“…We propose a broadband fiber optic parametric amplifier（FOPA） based on a near-zero ultra-flat dispersion profile with a single zero-dispersion wavelength（ZDW）…”
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Tamm-plasmon and surface-plasmon hybrid-mode based refractometry in photonic bandgap structures by Das, Ritwick, Srivastava, Triranjita, Jha, Rajan

“…The transverse magnetic (TM) polarized hybrid modes formed as a consequence of coupling between Tamm plasmon polariton (TM-TPP) mode and surface plasmon…”
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Second harmonic generation of femtosecond laser pulses of central wavelength 1000 nm, 1100 nm and 1300 nm using ZnO nanorods by Alrefaee, Maher, Panda, Rudrashish, Thakur, Anshu Singh, Sahoo, Pratap Kumar, Das, Ritwick, Datta, Prasanta Kumar, Das, Susanta Kumar

“…In this work high density ZnO nanorods were grown on glass substrate by using a two-step method. In the first step, drop-casting method was used for growth of…”
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Highly Sensitive Plasmonic Temperature Sensor Based on Photonic Crystal Surface Plasmon Waveguide by Srivastava, Triranjita, Das, Ritwick, Jha, Rajan

“…We propose a highly sensitive temperature sensor based on photonic crystal surface plasmon waveguides comprising different plasmonic active metals such as…”
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Green laser pumped congruently-grown LiTaO3 based singly-resonant optical parametric oscillator by Sahoo, Rashmi Rekha, Shukla, Mukesh Kumar, Das, Ritwick

“…We report a continuous wave (cw) singly-resonant, single-frequency optical parametric oscillator (SRO) using 50 mm long congruently-grown 8-mol% MgO doped…”
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AZO Coated Microchannel Incorporated PCF-Based SPR Sensor: A Numerical Analysis by Dash, Jitendra Narayan, Das, Ritwick, Jha, Rajan

“…An aluminum-doped zinc oxide (AZO) coated photonic crystal fiber (PCF) is proposed and numerically analyzed for surface plasmon resonance-based refractive…”
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Nonlinear Optical Absorption Properties of Sputtered WSe2 Thin-films in the Near-Infrared Spectral Band

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High-Power Single-Frequency Source in the Mid-Infrared Using a Singly Resonant Optical Parametric Oscillator Pumped by Yb-Fiber Laser by Shukla, Mukesh Kumar, Das, Ritwick

“…We present a high-power single-frequency continuously tunable mid-infrared (MIR) singly resonant optical parametric oscillator (SRO) using 80-mm-long MgO-doped…”
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Increased pump acceptance bandwidth in spontaneous parametric downconversion process using Bragg reflection waveguides by Thyagarajan, Krishna, Das, Ritwick, Alibart, Olivier, de Micheli, Marc, Ostrowsky, Daniel B, Tanzilli, Sébastien

“…In this paper we show that by suitably tailoring the dispersion characteristics of a Bragg reflection waveguide (BRW) mode, it is possible to achieve efficient…”
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Tamm-plasmon resonance based temperature sensor in a Ta2O5/SiO2 based distributed Bragg reflector by Kumar, Samir, Maji, Partha Sona, Das, Ritwick

“…•A novel approach for measuring temperature change using Tamm-plasmon-polariton (TPP) modes is demonstrated experimentally.•Change in device temperature or…”
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Students' Understanding of Electrostatic Force as a Vector Quantity at the Undergraduate Level by Chhabra, Mahima, Das, Ritwick

“…Electrostatic force is the preliminary and fundamental topic that forms the bedrock on which the conceptual framework of "electromagnetism" is built. Being a…”
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Geometric representation of adiabatic distributed-Bragg-reflectors and broadening the photonic bandgap by Sharma, Shailja, Mondal, Abhishek, Das, Ritwick

“…Adiabatic following has been an widely-employed technique for achieving near-complete population transfer in a ‘two-level’ quantum mechanical system. The…”
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A theoretical approach to improve the performance of SPR biosensor using MXene and black phosphorus by Srivastava, Akash, Verma, Alka, Das, Ritwick, Prajapati, Y.K.

“…•An SPR sensor proposed using Ti3C2Tx MXene nanomaterial.•High sensitivity 190.22 (°/RIU) is obtained using a single layer of Ti3C2Tx MXene.•The penetration…”
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Multiple reflection assisted Laser Doppler Vibrometer setup for high resolution displacement measurement by Pachisia, Nikhil Kumar, Tiwari, Kajal, Das, Ritwick

“…An experimental design of high resolution non-intrusive displacement sensor working on the principle of basic LDV is being presented. Resolution enhancement…”
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On the performance of Tamm-plasmon and surface-plasmon hybrid-mode refractive-index sensor in metallo-dielectric heterostructure configuration by Das, Ritwick, Srivastava, Triranjita, Jha, Rajan

“…Hybrid modes formed as a consequence of coupling between Tamm-plasmon polariton (TPP) mode and surface plasmon polariton (SPP) mode in a metallo-dielectric…”
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W S e 2 thin-films as efficient optical limiters: A study on impact of annealing by Surbhi, Km, Sahoo, Utkalika P., Sahoo, Pratap K., Das, Ritwick

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WSe2 thin-films as efficient optical limiters: A study on impact of annealing by Surbhi, Km, Sahoo, Utkalika P., Sahoo, Pratap K., Das, Ritwick

“…We present a detailed investigation on the impact of thermal annealing on the third-order nonlinear optical (NLO) properties of sputtered WSe2 thin films. The…”
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Hybrid-Tamm-Plasmon-Polariton Based Self-Reference Temperature Sensor by Maji, Partha Sona, Das, Ritwick

“…We propose a hybrid Tamm-plasmon-polariton (TPP) mode based sensing scheme for accurate determination of temperature. The sensing architecture is comprised of…”
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